Porcellio bolivari 'Lemonade' Isopods

Long, lean and lemon-yellow, with a silhouette closer to a fossil than a woodlouse. This is one of the more otherworldly isopods you can keep. Porcellio bolivari 'Lemonade' is a giant Spanish species prized for its soft yellow colouring and its elongated, trilobite-like body, and you will sometimes see it sold as the Skeleton Isopod for that flattened, ribbed shape. The name is a nod to its outline and nothing more, so do not confuse it with the unrelated Armadillidium klugii 'Skeleton'. Think of the Lemonade as the lemon-yellow sibling of the 'Yellow Ghost', the very same species in a sunnier coat, and one of the flagship collector isopods in the hobby.

Up close, the skeletal look makes sense. The body is long, flat and bumpy, edged in pale legs and antennae, and it reaches up to around 30mm, which puts it firmly among the giant isopods. Older males are the real showpieces, drawing out long, elegant uropods at the tail end that stretch the skeletal outline further still. Like every Porcellio, the Lemonade cannot conglobate, so it will not roll into a ball the way a pill woodlouse does; instead it relies on speed, armour and wedging itself into cover. It sits happily alongside the other Spanish giants, whether that is the grey Titan (P. hoffmannseggii), the bold P. expansus 'Orange' or the striking P. magnificus.

Why keep one? Mostly for the spectacle. Few isopods carry this mix of size, colour and prehistoric shape, and a settled group makes a striking centrepiece in a display enclosure while quietly working through leaf litter and rotting wood as any good detritivore should. This is a species collectors reach for once they have a few easier colonies under their belt, and it earns its place among the most sought-after large Porcellio. If you enjoy comparing the genus, browse the wider Porcellio collection or read our guide to the different types of Porcellio isopods to see where the Lemonade fits.

Care is where this one asks for some experience. In the wild it is a cave-dwelling native of arid southeastern Spain, and that origin sets the rules. Keep it dry and exceptionally well ventilated, with only a small damp corner to moult and drink from rather than moisture throughout. Give it a warm room temperature and a deep substrate, since a large animal needs room to burrow, and keep high calcium available at all times for those big moults, with a little protein alongside. The one thing to get right is airflow. Stagnant, humid conditions are what undo this species; it does not crash overnight but slowly declines in stale, damp air, so err on the dry side and let the enclosure breathe. A base of flake soil topped with leaf litter and bark gives them the drier, nutritious ground they want.

Get the husbandry dialled in and the Lemonade rewards you. Breeding is steady rather than explosive: females carry their young in a brood pouch and release fully formed juveniles, which start pale and deepen towards that lemon-yellow as they mature. Keep the colony as a pure line and the colour holds true from one generation to the next. A modest springtail culture tucked into the damp corner helps keep mould in check around fresh food, though it will stay small in an enclosure this dry, which is just as it should be.

Every Lemonade we send is captive-bred here and packed with care, riding inside a ventilated tub of damp sphagnum moss that sits within a double-walled box to hold warmth and cushion the trip. We dispatch Monday to Thursday by tracked next-day Royal Mail, aiming for delivery by 1pm, and every order is covered by our live-arrival guarantee. We add a 20% overcount as standard, so a few extra always travel with your order.