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Home » Guide » Arthropods (Arthropoda) » Crustaceans (Crustacea) » Malacostracans (Malacostraca) » Marsupial Crustaceans (Peracarida) » Isopods (Isopoda) » Scutocoxifera » Woodlice (Oniscidea) » Holoverticata » Orthogonopoda » Synocheta » Trichoniscidae » Hyloniscus » Hyloniscus riparius
Photo#371410
Woodlouse_MG_8474 - Hyloniscus riparius
Copyright © 2010 Steve Nanz

Woodlouse_MG_8474 - Hyloniscus riparius
Prospect Park, Brooklyn, Kings County, New York, USA
June 21, 2009
Trichoniscus sp.?

Images of this individual: tag all
Woodlouse_MG_8474 - Hyloniscus riparius Woodlouse_MG_8474 - Hyloniscus riparius
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Contributed by Steve Nanz on 13 February, 2010 - 1:59pm
Last updated 6 April, 2010 - 3:29am

Moved to Hyloniscus riparius
Moved from Woodlice.
… Steve Nanz, 6 April, 2010 - 3:29am login or register to post comments

Trichoniscidae
Hi Steve,

Probably Hyloniscus, most likely Hyloniscus riparius.
Size? If any chance, check to see if the eye is made up of one ocellus or three. Looks like one to me, but not enough detail. Colour also good for Hyloniscus riparius.

Cheers, Arp
… Arp, 31 March, 2010 - 8:02pm login or register to post comments

 
Image Added
Looks like one ocellus. Is this any help?
… Steve Nanz, 1 April, 2010 - 2:10am login or register to post comments

 
Hyloniscus riparius
Hi Steve, thanks for the extra image, and yes - it's helpful. This rules out the similar looking animals in the genus Trichoniscus and Cordioniscus stebbingi. Of all Trichoniscidae recorded in the USA only Hyloniscus riparius fits the bill, and it has been recorded for New York at least since 1957.

Theoretically other imports can't be ruled out 100% (such as other Hyloniscus or maybe Oritoniscus (flavus?) or something else), but this one really, really looks like the European H. riparius in all visible details. So, for all but 100% confirmation through male sexual characters it's fair to assume it's the one species well known from the area for decades.

Cheers! Arp
… Arp, 1 April, 2010 - 10:14am login or register to post comments

Moved
Moved from ID Request.
… Ken Wolgemuth, 1 March, 2010 - 6:25pm login or register to post comments

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