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Trachelipus Trilobatus (Trilobite) Isopods
£25.00
Trachelipus Trilobatus are medium-sized species that are native to Russia. Predominantly found near the Black Sea, these flat isopods have a hard exoskeleton. They have a greyish pattern and orange-tinged ring at the base of their exoskeleton. The beginner series isopod can make precious pets even for experienced isopod collectors. The Trachelipus Trilobatus Isopods are also found on the coast of Turkey and Georgia in abundance. These Romanian isopods resemble the Porcellio Spatulatus Coros species a lot. These beautiful isopods thrive in mediumly humid environments.
A Glimpse
Origin: Russia, Eastern Europe (Romania)
Scientific Name: Trachelipus Trilobatus
Difficulty: Easy
Rarity: Uncommon
Temperature: 18 to 26℃
Size: 2 cm to 4 cm
Humidity: 60-80%
Favourable Foods: Cuttlebone, eggshells, decaying leaves
An Overview
Trachelipus Trilobatus make beloved and interesting pets because they are rare to find. These Trachelipus isopods are Russian and Romanian species characterized by their greyish pattern and orange-tinged ring at the base of their exoskeleton.
These Eastern European natives have a somewhat flat appearance. These elegant Trachelipus isopods resemble the Porcellio Spatulatus Coros isopods. These easy-to-keep and easy-to-breed isopods are medium-sized species that can grow from 2cm to 4cm in size.
Being a mediumly humid environment thrivers, the Trilobatus Isopods need a terrarium setup with medium to high levels of humidity. As the original climate of the Trachelipus Trilobatus Isopods is subtropical, they can grow in warm weathered and hard wintery setups conveniently.
These iso odsmake ideal pets because of their fast breeding capabilities and a high tolerance for colder environments. Feeding the Trachelipus Trilobatus Isopods is not difficult either. These isopods do not have any kind of fixed diet. The Trachelipus Trilobatus Isopods can be fed decayed wood, cuttlefish bone, and limestone.
Trachelipus Trilobatus Isopods are fast breeders. They can produce large numbers under suitable environmental conditions. These stunning isopods have excellent breeding capabilities.
Basic Care For Trachelipus Trilobatus Isopods
You can use the following instructions and tips to provide the best care to the Trachelipus Trilobatus Isopods.
You can use an enclosure setup with a medium level of humidity to house the Trachelipus Trilobatus Isopods.
It is essential to ensure the Trachelipus Trilobatus Isopods get sufficient calcium supply through supplements like cuttlefish bone.
Don’t keep the enclosure in direct light.
Make use of a substrate mix with vegetable peels and wood pieces to meet the needs of the Trachelipus Trilobatus Isopods.
Feeding
Trachelipus Trilobatus are a relatively easy species when it comes to feeding. The Trachelipus Trilobatus Isopods can feed on staple diets like decaying wood and leaf litter. They are not fond of a certain type of food. These Isopods consume dried vegetables and vegetable peels as found in the natural environment.
Appearance And Behaviour
Trachelipus Trilobatus Isopods thrive in medium to high humidity conditions.
They can be a suitable choice for beginners because they are easy to keep and even easier to breed isopods.
Trachelipus Trilobatus Isopods are medium-sized isopods with a flat appearance.
These greyish-orange coloured isopods resemble the Porcellio Spatulatus Coros in appearance.
You can make an ample amount of hiding spots because they are highly preferred by the Trachelipus Trilobatus.
Trachelipus Triobatus Isopods Habitat
The Trachelipus Trilobatus Isopods is a species recognized for its fast breeding capabilities. The Trachelipus Trilobatus can live beside other species and animals in an enclosure. They are not scavengers and can keep a vivarium setup clean.
Substrate Mix
These isopodswill need a substrate mix with wood pieces, leaf litter, vegetable peels, and more. Isopod collectors can add natural supplements of wood and leaves within the setup. Oyster shells are essential supplements for their growth. Add only pesticide free supplements inside the enclosure because they can pose a huge risk for the Trachelipus Trilobatus Isopods.
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Trachelipus caveatus (ex Crete) Isopods
£20.00
Discover the fascinating Trachelipus caveatus (ex Crete) isopods, a rare and captivating Mediterranean species perfect for dedicated collectors and enthusiasts. Native to the beautiful Greek island of Crete, these remarkable isopods showcase the unique biodiversity of Mediterranean ecosystems and make an exceptional addition to any specialized collection.
Known for their robust nature and distinctive appearance, Trachelipus caveatus stands out among cave-dwelling isopod species with their excellent adaptability to various terrarium conditions. These rare Cretan isopods offer hobbyists the opportunity to keep a truly unique species that's rarely available in the UK market.
A Glimpse
Origin: Crete, Greece
Scientific Name: Trachelipus caveatus
Difficulty Level: Moderate
Size: Up to 12-15mm
Rarity: Rare
Temperature: 18°C to 24°C
Humidity: 60% to 75%
Favourite Food: Decaying leaves, rotting wood, fish flakes
An Overview
Trachelipus caveatus from Crete represents one of the Mediterranean's most interesting isopod species. These hardy crustaceans have evolved in the unique limestone cave systems and rocky coastal areas of Crete, developing remarkable resilience and adaptability that makes them surprisingly easy to maintain in captivity.
Their natural habitat consists of humid limestone caves, rocky crevices, and areas rich in decomposing organic matter. This cave-dwelling heritage means they're particularly well-suited to bioactive terrarium setups where they excel as efficient decomposers, breaking down organic waste and contributing to a healthy ecosystem balance.
What makes Trachelipus caveatus particularly special is their role as both fascinating pets and excellent cleanup crew members for vivariums. Their consistent activity and voracious appetite for decaying matter help maintain pristine terrarium conditions naturally.
Trachelipus caveatus: Essential Care
Caring for these Mediterranean gems requires attention to their specific needs, but with proper setup, they're remarkably low-maintenance.
Enclosure: Provide a well-ventilated terrarium of at least 20 litres for a small colony. A 20-gallon tank offers ideal space for breeding groups, allowing natural behaviours and territory establishment.
Ventilation: Ensure excellent airflow to prevent mould growth while maintaining humidity. Cross-ventilation works best for these cave-adapted species.
Temperature: Maintain 18°C to 24°C using heating mats if necessary. Avoid overheating as these Mediterranean species prefer consistent, moderate temperatures.
Humidity: Target 60-75% humidity using regular misting and damp substrate areas. Monitor with a hygrometer for optimal conditions.
Substrate: Create a mixed substrate using organic soil, leaf litter, and decaying wood pieces. Add limestone chips to replicate their natural Cretan cave environment and provide essential calcium.
Trachelipus caveatus: Feeding Guide
These efficient decomposers thrive on a varied diet that mimics their natural food sources found in Cretan cave systems and coastal environments.
Primary Diet: Provide abundant decaying hardwood pieces and a thick layer of mixed leaf litter. Oak, beech, and maple leaves work excellently and break down at ideal rates for sustained nutrition.
Protein Supplements: Offer high-quality fish flakes, dried gammarus, or specialized isopod protein foods once or twice weekly. This supports healthy growth and reproductive success in breeding colonies.
Fresh Foods: Occasional offerings of fresh vegetables like carrot, courgette, or sweet potato provide nutritional variety. Remove uneaten portions within 48 hours to prevent spoilage.
Remember that proper feeding practices are crucial for maintaining healthy colonies and preventing pest issues.
Trachelipus caveatus: Appearance and Behaviour
Distinctive Look: These isopods display the characteristic flattened body shape typical of cave-dwelling species, with robust segmentation and subtle earth-tone colouration.
Colouration: Varies from greyish-brown to darker earth tones, often with subtle mottling that provided camouflage in their natural Cretan cave habitats.
Size: Adults reach 12-15mm in length, making them a medium-sized species that's substantial enough to observe easily while not overwhelming smaller terrariums.
Social Behaviour: Highly gregarious and prefer living in groups. They often aggregate under favourite hiding spots and show interesting social interactions.
Activity Patterns: Primarily nocturnal, becoming most active during evening hours. During the day, they shelter under wood pieces, leaf litter, or in substrate burrows.
Defensive Behaviour: When threatened, they can partially curl up, though not as completely as armadillidium species.
Trachelipus caveatus: Creating the Perfect Habitat
Replicating the unique Cretan cave environment these isopods call home ensures their health and encourages natural behaviours that make them fascinating to observe.
Terrarium Layout: Design your setup with both horizontal space for foraging and vertical elements like cork bark pieces and rock formations that mimic their natural cave environment.
Hiding Places: Provide multiple shelter options including cork bark tubes, flat stones, and densely layered leaf litter. These Mediterranean isopods feel most secure with abundant hiding spots that replicate cave crevices.
Moisture Gradient: Create areas of varying moisture levels - from slightly damp to moderately moist. This allows individuals to choose their preferred microclimate and supports different life stages.
Lighting: These cave-adapted species prefer dim conditions. If using planted terrariums, ensure they have adequate shelter from any grow lights.
For those new to keeping more unusual species, our guide on choosing the right isopod species provides valuable insights into species selection and care considerations.
Trachelipus caveatus: Substrate Requirements
The substrate mix is crucial for these Mediterranean cave dwellers, as it must retain appropriate moisture while providing the organic matter they need to thrive.
Base Layer: Start with organic, pesticide-free topsoil mixed with decomposed leaf mould. This provides the foundation for a healthy microorganism community.
Drainage: Add a small amount of horticultural sand or fine gravel to improve drainage and prevent waterlogging, which these cave species particularly dislike.
Organic Matter: Layer in plenty of partially decomposed hardwood pieces and mixed leaf litter. This creates the rich, organic environment they naturally inhabit in Cretan cave systems.
Calcium Source: Include crushed limestone or marble chips to replicate the calcium-rich cave environment of Crete while providing essential nutrients for healthy exoskeleton development.
Depth: Maintain 7-10cm of substrate depth to allow for natural burrowing behaviours and create stable moisture gradients throughout the enclosure.
Breeding Trachelipus caveatus
These fascinating Cretan isopods breed readily in captivity when provided with optimal conditions. Females carry their developing young in a brood pouch, and with proper care, you can expect regular breeding activity throughout the warmer months.
Breeding success increases significantly with stable conditions, adequate protein sources, and a well-established colony of at least 10-15 individuals. Young isopods will appear as miniature versions of adults and begin contributing to the cleanup crew almost immediately.
Why Choose Trachelipus caveatus?
Trachelipus caveatus represents an opportunity to keep a truly unique piece of Mediterranean biodiversity. These rare isopods offer several advantages for serious collectors:
Rarity: Extremely uncommon in the hobby, making them a prestigious addition to any collection
Hardiness: Despite their specialized origin, they adapt well to terrarium conditions
Efficiency: Excellent cleanup crew members that actively process organic waste
Behaviour: Interesting social interactions and activity patterns provide hours of observation
Educational Value: Perfect for learning about Mediterranean cave ecosystems and isopod biology
Whether you're expanding your existing collection or seeking something truly unusual, Trachelipus caveatus from Crete offers an unmatched combination of rarity, beauty, and fascinating natural history.
Quick Care Summary
Perfect for: Experienced collectors seeking rare Mediterranean speciesDifficulty: Moderate - suitable for those with some isopod experienceBest kept: In groups of 10+ individuals for natural behaviourSpecial needs: Limestone-based substrate and excellent ventilationReward level: High - fascinating behaviour and extreme rarity make these truly special
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Trachelipus Rotzeburgi Isopods
£20.00
Blooming in the most common places like under the damp log in your backyard, Trachelipus Rotzeburgi Isopods are terrestrial isopods, also known as woodlice or pill bugs. They are an easy-to-look after species, plays a crucial role in the ecosystem as other isopods do. They are nature's recyclers and break down organic matter and enrich the soil to be as essential as they can be for plants and humans. Their presence is a sign the ecosystem is healthy and functioning, making them a fascinating subject to many. That being said let us walk you through the details of Trachelipus Rotzeburgi Isopods so you can decide if that's the right choice for you to have as a pet.
Trachelipus Rotzeburgi Isopods: A Glimpse
Origin: Central Europe
Scientific Name: Trachelipus ratzeburgii pedemontanus
Rarity: Not rare
Size: Up to 1.8 cm
Difficulty Level: Easy
Humidity: 60-70%
Temperature: 17-25 °C
Favorite Foods: Decaying plant matter, Dried river shrimp, Vegetable scraps, fruit, and rotten wood
An Overview
A beginner-friendly species to start your pet keeping experience, Trachelipus rotzeburgi is from central Europe, where they are found in different regions, but more common in areas with high-humidity and low temperatures. They are hardy creatures with small in size, which is added benefit for blending perfectly in every surrounding. The maximum they grow upto 1.8 cm if growing in the favourable conditions.
The reason of Trachelipus rotzeburgi getting popular species amongst hobbyists is because of its friendly nature and minimum care requirements. The features slightly rough and bumpy texture and the colors varies varies from dark grey to brown helping them hide better in their surroundings and not be noticeable.
Despite being a native of Europe, Trachelipus rotzeburgi can adapt well to different climates and living conditions, making them a better choice than other isopods that cannot.
An interesting aspect of their behavior is their active nature. Trachelipus rotzeburgi are livelier than other isopods, which is why they are fun to watch in a terrarium where they live in a community.
Trachelipus Rotzeburgi Isopods: Basic Care
Caring for Trachelipus rotzeburgi isopods is simple if you know what they need and how they live. We have provided some basic care tips to help beginners get started.
Since they are found in Central Europe, they prefer cold temperatures between 17 °C and 25 °C, so you have to maintain the terrarium accordingly.
Like in the wild, Trachelipus rotzeburgi isopods need a moist but not soaking wet environment with lots of hiding spots as they do in the wild. Using a mix of soil, leaf litter, and pieces of bark, you can create a similar setup for your isopods to live happy and healthy.
They prefer high levels of humidity; around 70-80% is good to go, along with good ventilation so mold cannot grow within the enclosure.
Trachelipus rotzeburgi isopods are sensitive to temperature and humidity changes, so drastic fluctuations within the terrarium are not allowed, as this slows down their activity.
Crowd the enclosure with both dry and wet areas so your isopods are comfortable and can easily choose a spot according to their mood and preference.
A composition of dechlorinated water to mist the enclosure is a good idea because it makes the environment healthy and proper for your isopods to live.
Feeding
A fun part of owning Trachelipus rotzeburgi isopods is feeding because you will likely have a great time preparing your diet, which consists mainly of dead plant material.
When feeding them, learn about their preference first. To fill their tummy, feed them litter like dried oak, maple, or other safe leaves. Their love their veggies like carrots, zucchini, and cucumbers because it is good for their health and balance the diet.
Risking on their protein source is not good on their health and you must include foods like fish flakes or dried shrimp also plays a role in their overall health in a negative way and can come in between their growth of exoskeleton and become weak. As for calcium, you can give cuttlebone as it strengthens their shells, helping them live longer.
Trachelipus Rotzeburgi Isopods: Appearance & Behaviour
Trachelipus Rotzeburgi isopods have a rugged, earthy look. They have an oval-shaped body and a bumpy texture that covers their entire exoskeleton, that acts like a shield and help them to hide in natural surrounding from predators.
As far as coloration is concerned, they come in dark grey, brown, or black tones, which help them easily, hide in dirt, leaves, and bark. The faint strips or lighter patches on their backs allow them to camouflage better.
Trachelipus rotzeburgi isopods are more active than other species in behavior, so you will often see them moving around, foraging for food, or hiding under objects.
They are social creatures and live in groups, where they interact and thrive together if the environment is favorable.
Trachelipus Rotzeburgi Isopods: Habitat
To give them their preferred habitat, ensure to create areas with greenery because they love the areas with greenery like forest gardens and damp fields. The rate of their survival grows when the ground is moist and high-humidity spaces that protect them from predators and plenty of food, so they can nibble anytime they like and not feel starved.
Ensure the enclosure has good ventilation and lots of hiding places because they need it to hide and rest.
Substrate Mix
You cannot take the substrate mix lightly because it is an essential part of their environment in captivity, and without it, they cannot be happy and healthy.
A substrate that can hold moisture for a long time without mistaking the enclosure too often is the perfect choice. Create a mixture of organic topsoil, coconut fiber, and a layer of leaf litter while ensuring that they are free of pesticides and fertilizers.
With additional elements like rotting wood provide a food source and extra hiding spots for your isopods to use whenever they need them. The final touch to create the complete habitat is by adding a bit of sand to improve drainage and ensure the terrarium is not overly moist.
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Trachelipus Difficilis Isopods
£20.00
A Carpathian woodland species with attractive brownish-orange colouration and an interesting natural history as a cave entrance dweller.
Trachelipus Difficilis Isopods: A Glimpse
Origin: Hungary, Romania, Slovakia (Carpathian region)
Scientific Name: Trachelipus difficilis
Difficulty Level: Low to Medium
Size: Up to 2cm
Rarity: Uncommon
Temperature: 16°C to 24°C
Humidity: 60% to 75% (medium)
Favorite Foods: Leaf litter, decaying wood, fungi, algae, vegetables
Supplements: Calcium sources (cuttlebone, limestone), occasional protein
Trachelipus Difficilis Isopods: An Overview
Trachelipus difficilis is a Central European species native to the Carpathian mountain region, spanning parts of Hungary, Romania, and Slovakia. First described by the Romanian scientist V.G. Radu in 1950, this species has an interesting ecological niche that sets it apart from more commonly kept isopods.
In the wild, T. difficilis is described as a "petricolous" species, meaning it's rock-dwelling rather than primarily soil-dwelling. Scientific surveys have found them on the walls of cave entrances in Carpathian limestone cave systems, including the famous Dobšiná Ice Cave region in Slovakia. They've also been recorded in wet forest areas, natural woodland habitats, and occasionally in abandoned mines.
This rock-dwelling behaviour makes them interesting subjects for keepers who want something a bit different from the typical leaf-litter-dwelling species. While they'll certainly use substrate and leaf litter in captivity, providing vertical surfaces and rocky hides may encourage more natural behaviour.
In the hobby, T. difficilis remains relatively uncommon compared to more widely available Trachelipus species like T. trilobatus or T. rathkii. Their attractive brownish-orange colouration and larger size make them an appealing addition for collectors looking to diversify their Trachelipus holdings.
Trachelipus Difficilis Isopods: Appearance
T. difficilis displays an attractive brownish-orange colouration that distinguishes them from the greyer tones of some related species. The body has lighter brown to orange membranes with darker mottling, creating a warm, earthy appearance.
Adults reach approximately 2cm in length, making them one of the larger Trachelipus species commonly available. They have the typical Trachelipus body shape: broader and flatter than Armadillidium species, with a less domed profile. Unlike pill bugs, they cannot roll into a tight ball when threatened.
The body is segmented with well-defined tergites, and they have the characteristic "shoulders" visible on the lateral edges that are typical of the genus.
Trachelipus Difficilis Isopods: Basic Care
Despite their interesting wild ecology, T. difficilis adapt well to standard isopod keeping conditions in captivity. They're tolerant of a range of conditions, making them suitable for keepers with some basic experience.
Temperature: These are temperate woodland isopods from mountainous regions, so they don't need tropical heat. Room temperature between 16°C and 24°C suits them well. They can tolerate cooler temperatures than many tropical species but don't need to be kept cold. Avoid excessive heat, particularly above 26°C.
Humidity: Medium humidity works best. Aim for around 60-75% with a moisture gradient in the enclosure. One area should be kept damper than the rest. Being found in wet forest areas and near cave entrances in the wild, they appreciate reliable access to moisture but don't want waterlogged conditions.
Ventilation: Moderate ventilation is appropriate. They don't need the aggressive airflow required by dry Spanish Porcellio species, but stagnant conditions should be avoided.
Lighting: Low light conditions are preferred. In the wild, they're found in shaded forest areas and cave entrances, so they naturally avoid bright light. Provide plenty of dark hiding spots.
Trachelipus Difficilis Isopods: Feeding
T. difficilis are detritivores with dietary habits similar to other woodland isopod species. In the wild, they've been observed feeding on organic matter including fungi and algae on cave walls.
Primary Food Sources:
Mixed hardwood leaf litter (oak, beech, hornbeam)
Decaying hardwood pieces
Rotting bark
Fungi (if available)
Supplemental Foods:
Vegetables (carrots, courgette, cucumber, squash)
Fish flakes or fish food for protein
Occasional fruit
Dried shrimp or freeze-dried protein sources
Calcium Sources: Provide calcium for healthy moulting:
Cuttlebone pieces
Limestone chips (particularly appropriate given their limestone cave habitat)
Crushed eggshells
Oyster shell
Given their natural association with limestone cave systems, adding limestone to their enclosure may be particularly beneficial.
Trachelipus Difficilis Isopods: Substrate Mix
A standard woodland substrate mix works well, though given their petricolous (rock-dwelling) nature, including rocky elements may encourage natural behaviour.
A suitable mix might include:
Organic topsoil or potting compost (pesticide-free) as a base
Coconut coir for moisture retention
Sphagnum moss in the humid area
Leaf litter as a top layer
Decaying hardwood pieces
Limestone chips or pieces scattered through the substrate
Substrate depth of around 5cm is adequate, though they may not burrow as extensively as some species given their natural preference for rocky surfaces.
Trachelipus Difficilis Isopods: Enclosure Setup
Consider incorporating elements that reflect their natural rock-dwelling habits.
Container Size: A 4-6 litre container suits a starter colony. They're larger isopods that appreciate reasonable space.
Rocky Elements: Unlike many isopod setups, consider adding flat stones, limestone pieces, or textured rock surfaces. This mimics their natural cave entrance habitat and may encourage more natural behaviour. Position rocks to create vertical and angled surfaces they can climb and shelter under.
Cork Bark: Still useful for hides and surfaces. Position some bark pieces vertically or at angles rather than just flat on the substrate.
Moisture Gradient: Keep one section damper with moss coverage. The rest can be slightly drier. This allows them to self-regulate their hydration.
Leaf Litter: Still important as food source and shelter, even for a rock-dwelling species.
Trachelipus Difficilis Isopods: Breeding
T. difficilis breed well in captivity once established. They're reported to reproduce at a reasonable rate, though not as explosively as some prolific species.
What to Expect:
Steady colony growth with good care
Moderate brood sizes
Reliable reproduction once settled
Maintain consistent conditions and ensure adequate calcium for breeding females. The cooler temperature range they prefer doesn't prevent breeding but may slow reproduction compared to species kept warmer.
Trachelipus Difficilis Isopods: Behaviour
T. difficilis display typical Trachelipus behaviour with some interesting quirks related to their rock-dwelling nature.
Typical Behaviours:
Sheltering in dark areas during the day
Activity during evening and night hours
Climbing on vertical surfaces more readily than purely ground-dwelling species
Congregating under bark and stones
Feeding on decomposing organic matter
They're reported to be reasonably active isopods that, once established, will be visible exploring their enclosure, particularly under low-light conditions.
Trachelipus Difficilis Isopods: Bioactive Use
T. difficilis can work well in bioactive setups, particularly those mimicking temperate European woodland conditions.
Good for:
Temperate bioactive enclosures
Setups with rocky or mountainous themes
Enclosures for animals from similar climatic regions
Display terrariums with a naturalistic European woodland aesthetic
Their larger size makes them useful for processing organic waste, and their interesting colouration adds visual appeal to naturalistic setups.
Who Are These Isopods For?
T. difficilis suit keepers who:
Want an uncommon Trachelipus species for their collection
Appreciate the interesting natural history of cave-associated species
Can maintain moderate humidity and avoid excessive heat
Want a larger, attractively coloured European species
Are interested in recreating Carpathian woodland biotopes
They might not suit:
Complete beginners (though they're not difficult, starting with more common species helps build experience)
Those wanting a tropical species requiring high heat
Keepers looking for maximum visibility (they're still primarily nocturnal)
What's Included
Each order contains healthy specimens selected from our breeding stock. We include a mix of sizes to give your colony the best start with breeding potential. A care sheet is provided with every order.
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Trachelipus Mostarensis Isopods
£25.00
A European isopod that will thrive in a warm room, a spotty nutty brown colour these make a great choice if you want a less flashy isopod that isn’t widely seen.
• Origin: Bosnia and Herzegovina and Croatia
• Scientific Name: Trachelipus Mostarensis
• Difficulty Level: Low
• Size: 1.2-1.5cm
• Rarity: Medium
• Temperature: 68-77F
• Humidity: 60-70%
• Dietary Preferences: leaf litter, cucumber, dried fish
Hailing from Bosnia and Herzegovina, and Croatia there is surprisingly little known about Trachelipus mostarensis in the wild, even though it is a widely distributed species. They are an undemanding species that thrives with a reasonable humidity, in a warm room you won't need to add supplemental heating. They will thrive on a general diet of leaf litter, with a variety of fish pellets, occasional chopped veg, a source of calcium, and other foods to provide vitamins and minerals they need.
Once your colony is established, they are likely to breed and increase their numbers, creating a nice self-sustaining population.
If you loved collecting woodlice from the garden as a kid then these will bring back fond memories. They have the more traditional woodlouse shape, and size, although not quite colour, rather than the more unusual species that we also know and love. But these are happier in warmer temperatures than many native British species and are great for a general clean-up crew for temperate or subtropical species.
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Trachelipus Caucasius Isopods
£20.00
Trachelipus caucasius is a hardy isopod species originating from the Caucasus region, found around the Black Sea coasts of Russia, Georgia, and Turkey. Sometimes called "Trilobite isopods" due to their body shape, they display attractive grey colouration often accented with orange edging along the segments. At 2-4 cm when fully grown, they're a substantial species that's easy to observe, and their tolerance for a range of temperatures combined with straightforward care makes them a practical choice for keepers at all experience levels.
A Glimpse
Origin: Caucasus region (Russia, Georgia, Turkey - Black Sea coastal areas)
Scientific Name: Trachelipus caucasius
Maintenance required: Low
Average Size: 2-4 cm
Rarity: Medium
Lifespan: 2-3 years
Temperature: 18-26°C (64-79°F)
Ventilation: Medium to High
Humidity: 60-75% (with moisture gradient)
Favorite food: Leaf litter, decaying hardwood, vegetables
Supplements: Cuttlefish bone, crushed limestone, eggshells
Trachelipus caucasius: Introduction
Trachelipus caucasius comes from the subtropical climate zones around the Black Sea, where conditions include warm summers, mild autumns, and cold winters. This natural environment has made them adaptable to a broader temperature range than many tropical isopod species—they'll handle cooler conditions that would stress more sensitive species, while also thriving in warmer setups.
Their common nickname "Trilobite isopods" comes from their body shape, which has a segmented, somewhat flattened appearance reminiscent of the ancient trilobite fossils. Combined with their grey colouration and orange-edged segments, they have a distinctive look that sets them apart from more commonly kept species.
They're considered beginner-friendly due to their tolerance for varying conditions and willingness to breed in captivity. For keepers wanting something slightly different from the standard Porcellio or Armadillidium species without demanding care requirements, Trachelipus caucasius are worth considering.
Trachelipus caucasius: Physical Traits and Characteristics
Large species, with adults reaching 2-4 cm in length
Grey base colouration across the body
Orange or amber-coloured edging along segment margins in many individuals
Somewhat flattened body profile compared to rounder Armadillidium species
Segmented appearance contributing to the "trilobite" nickname
Hard exoskeleton providing protection
Cannot fully conglobate (roll into a complete ball) like Armadillidium—they rely on speed and finding cover
Prominent antennae and visible uropods
Behaviour
Trachelipus caucasius are active, adaptable isopods with a peaceful temperament.
Activity levels: Once established, they're reasonably active and visible. Their larger size makes them easy to spot when foraging, and they don't hide as constantly as some more secretive species.
Temperament: Peaceful and non-aggressive. They coexist well with other isopod species and terrarium inhabitants. They're not predatory and won't cause problems in mixed setups.
Temperature tolerance: Their subtropical origins mean they handle temperature variation better than tropical species. They can tolerate cooler conditions (down to around 15°C for short periods) without significant stress, though they thrive best in the 18-26°C range. This makes them suitable for unheated enclosures in many UK homes.
Defence: They can't roll into a complete ball like Armadillidium species. When threatened, they rely on moving quickly to find cover.
Settling in: Generally adaptable and settle into new enclosures without extended adjustment periods.
Diet
Trachelipus caucasius are detritivores with undemanding dietary requirements.
Primary foods:
Dried leaf litter (oak, beech, hawthorn, and similar hardwoods)
Decaying hardwood
Cork bark
Wood pieces
Supplementary foods:
Vegetables: carrot, courgette, sweet potato, cucumber
Dried vegetable scraps work well
Fish flakes for protein
Small amounts of fruit occasionally
Calcium: Important for healthy moulting, especially given their larger size. Provide cuttlefish bone, crushed limestone, or eggshells as a constant calcium source.
Feeding approach: They're not fussy eaters. Maintain a base of leaf litter and decaying wood, supplementing with vegetables every few days. Remove uneaten fresh foods within 24-48 hours. Their size means they have reasonable appetites, but don't overfeed—let them work through what's provided before adding more.
Trachelipus caucasius: Breeding
This species breeds well in captivity, with a reputation for reliable reproduction under appropriate conditions.
Breeding basics:
Females carry eggs in a marsupium and release fully formed juveniles
Breeding rate is good—they're considered fast breeders
Brood sizes are reasonable given their larger adult size
Population growth is steady under proper conditions
Conditions for breeding:
Stable temperature within preferred range (18-26°C)
Appropriate humidity with moisture available
Adequate calcium for breeding females
Sufficient hiding spots
Consistent food availability
Colony growth: Expect reliable population growth without the frustrating waits associated with slow-breeding species. They're productive breeders that will build colony numbers consistently.
Trachelipus caucasius: Habitat Setup
Enclosure: A medium to large container suits this species well given their size. A 15-20 litre container works for a starter colony, with larger enclosures beneficial as populations grow. Good ventilation is important—their subtropical origins mean they appreciate airflow.
Substrate: Use a moisture-retentive substrate that can maintain a humidity gradient:
Organic topsoil as a base (pesticide-free)
Sphagnum peat moss mixed in for moisture retention
Leaf litter worked into the substrate and layered generously on top
Decaying hardwood pieces
Crushed limestone or calcium powder throughout
Substrate depth of 5-10 cm allows for some burrowing and helps maintain stable moisture levels at lower depths.
Moisture gradient: They prefer humid conditions but benefit from having both moist and drier areas available. Set up approximately half the enclosure with damp substrate and sphagnum moss, allowing the other half to stay somewhat drier. This lets them regulate their moisture needs.
Overall humidity: Aim for 60-75%. They need access to moisture but aren't as humidity-dependent as tropical cave-dwelling species. Regular misting of the humid side maintains appropriate conditions.
Ventilation: Medium to high ventilation suits this species. Their subtropical climate origins mean they're accustomed to airflow. Use mesh lids or plenty of ventilation holes. Stagnant, overly humid conditions aren't ideal for them.
Décor and hides:
Cork bark pieces and tubes
Flat bark and wood pieces
Leaf litter coverage (they appreciate generous amounts)
Hardwood branches
Stones or slate pieces
Moss patches in the humid area
Provide plenty of natural hiding spots. They'll utilise cover throughout the enclosure and feel more secure with options available.
Temperature: They tolerate a good range (18-26°C), making them suitable for room temperature conditions in most UK homes. They can handle cooler temperatures better than tropical species—brief drops to 15°C won't cause major problems, though consistent warmth promotes better breeding. Avoid sustained temperatures above 28°C.
Bioactive Use
Trachelipus caucasius work well as cleanup crew in appropriate bioactive setups.
Advantages:
Larger size makes them efficient decomposers
Peaceful temperament allows cohabitation
Temperature tolerance suits varied bioactive environments
Hardy nature means they establish reliably
Good breeding ensures population maintenance
Suitable setups: Their temperature flexibility makes them suitable for a range of bioactive enclosures—from temperate setups to warmer tropical environments. They're particularly useful where temperature may fluctuate seasonally or where other species might struggle with cooler periods.
Considerations:
Larger adults may be visible in display enclosures (advantage or disadvantage depending on preference)
Cannot roll into a ball, so may be more vulnerable to predation by some reptiles than conglobating species
Mixed cleanup crews: They coexist peacefully with springtails and other isopod species. Their different niche and peaceful nature makes them suitable for diverse cleanup crew combinations.
Suitability
Trachelipus caucasius are suitable for keepers wanting a hardy, attractive species with minimal fuss.
Good choice for:
Beginners wanting something slightly different from common species
Keepers in homes with variable temperatures
Those wanting a larger, visible isopod species
Bioactive setups requiring temperature-tolerant cleanup crew
Collectors building diverse collections
Not ideal for:
Keepers specifically wanting conglobating (ball-rolling) species
Extremely high-humidity tropical setups (better options exist)
Care level: Low difficulty. They're forgiving of husbandry variations, tolerate temperature fluctuation, breed reliably, and don't have demanding requirements. A good choice for developing isopod-keeping skills or for maintaining functional colonies without constant attention.
Value: Good value for an attractive, larger species. They offer interesting appearance and reliable breeding at a reasonable price point, making them practical for both collection and functional bioactive use.