Isopod - Oniscus asellus

It's an Oniscus asellus.

… Ferenc Vilisics, 2 June, 2006 - 8:21am

Thank you

Thanks very much ferike, but, it would help me if you let me know on what you base your conclusion. Also, I would include any additional information in the corresponding guide page. Every bit helps to make Bugguide a better and more complete guide.

… Beatriz Moisset, 2 June, 2006 - 8:30am

oK, SO here are some fact

oK,

SO here are some facts on the basic morphology of O. asellus:

- shiny, even surface, greyish colour with white margins, sometimes with little yellow dots.
- wide oval shape, and the body is quite flat
- 3 segments of the flagellum, long antennae
- no significant protrusion or middle lobe on the head (compared to: Porcellio scaber, where you find an apiculate protrusion in the middle)
- no "lungs" ("white bodies") >>> Porcellio scaber has 2 pairs on the abdomen, ventral side.
- at first it doesnt run away, but clings on the surface (that's why it belongs to the "clinger type" isopods)

Best wishes: F

p.s: you can also email me if more help is needed in ID of isopods!

… Ferenc Vilisics, 23 June, 2006 - 3:42am

Thank you Ferenc

I added that information to the guide page. Sorry I misspelled your name before.

… Beatriz Moisset, 23 June, 2006 - 4:34am

Only Generally,

This is a Sow Bug (tails showing) If there are two segments in the end of the antennae it's a Porcellionidae, if there are three it's a Oniscidae. I can't tell if yours has two or three.

… Lynette Schimming, 23 October, 2005 - 8:49pm

I couldn't see them either

I couldn't see the number of segments in this nor the other pictures that I took.

… Beatriz Moisset, 23 October, 2005 - 10:45pm

Maybe It's Wishful Thinking,

but I think I see two joints separating the end of the right-hand antenna into three segments (lower-right-hand corner of the picture).

… Chuck Entz, 23 October, 2005 - 10:55pm

Thanks for your encouragement

Your comment made me look at my images once again and after a little retouching with Photoshop I inserted an enlargement of the antennae that, in fact shows the three segments at the end. Now we can be sure of the family.

… Beatriz Moisset, 24 October, 2005 - 11:16am