3 Isopods and 1 Beetle

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Nathant
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PostNathant on 1/15/2017, 5:05 pm

I went to a forest today and to be honest, I'm screwed up. I caught 3 Isopods. One looks like Oniscus asellus, however it is a lot more orange than the ones I'd find in my yard, and the would-be yellow dots are rust colored. Size is 12mm from head to... umm those two pointy things lol!  Another one Looks like Philoscia muscorum at first glance, but it is a lot grayer and there is very little yellow. The familiar stacked-triangle stripe down the middle is also absent,a characteristic that are in all My P. muscorum. Size is 8mm. The same goes for the other, but it is wider and a bit darker. Size is 9mm.

1st described=1
2nd described=2
3rd described=3







I also caught what I think is a Tenebrio species. Any ideas? Size is roughly 10mm, caught under rock with moist soil in backyard.



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Hisserdude
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PostHisserdude on 1/15/2017, 11:04 pm

Isopod 1 is an unusually colored Oniscus asellus, isopods 2 and 3 are Trachelipus rathkii, a species that is often confused with Porcellio scaber but has different patterning.

The beetle is a Carabid, not a Tenebrionid, and is probably a species of Pterostichus or something closely related.
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Nathant
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PostNathant on 1/16/2017, 7:02 am

@Hisserdude wrote:Isopod 1 is an unusually colored Oniscus asellus, isopods 2 and 3 are Trachelipus rathkii, a species that is often confused with Porcellio scaber but has different patterning.

The beetle is a Carabid, not a Tenebrionid, and is probably a species of Pterostichus or something closely related.

Awesome, thanks! Good thing I asked, I would have placed my Trachelipus rathkii in with my Philoscia muscorum. I knew something wasn't right. I also found a couple other beetles identical to that Carabid in the forest, nesting in some wood.

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