Trachelipus rathkii (Rathki's Isopod)

Trachelipus rathkii

(Rathki's Isopod)

In moist woodlands of the U.S, Trachelipus rathkii may be the most abundant isopods around. They commonly come in grey, brown, or calico forms, although I have also encountered orange and pure white specimens. These isopods are often mistaken for the similar Porcellio scaber. T.rathkii can usually be differentiated by the row of white markings going down each of its sides. For sure-fire identification, though, one must take a look at the book lungs. Rathki's Isopods have 5 pairs, while Rough Isopods only have 2. 

Adult Size - Male (17 mm), Female (17 mm)

Climbing Ability - None

Flying Ability - None

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Enclosure

T.rathkii aren't particularly large or crowding sensitive, so their enclosure doesn't need to be spacious.

Ventilation level - Moderate

Hides - Necessary

Barrier/Secure Lid - Not necessary

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Substrate

T.rathkii aren't picky about their substrate as long as it holds moisture well, isn't abrasive, and is deep enough to burrow in.

Type - Not picky

Moisture level - Moderate

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Food

T.rathkii aren't picky about their food and can be fed an average isopod diet.

Type - Dead hardwood leaves, proteinaceous pet foods, vegetables

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Temperature

T.rathkii can be kept into the high 60s, but grows and breeds fastest at warmer temperatures.

Range - 68 F to 85 F