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Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » Grasshoppers, Crickets, Katydids (Orthoptera) » Grasshoppers (Caelifera) » Pygmy Grasshoppers (Tetrigidae) » Tetriginae » Tetrix » Obscure Pygmy Grasshopper (Tetrix arenosa)
Photo#756695
Tetrigidae, dorsal - Tetrix arenosa
Copyright © 2013 MJ Hatfield

Tetrigidae, dorsal - Tetrix arenosa
Heritage Valley, Allamakee County, Iowa, USA
September 25, 2007
Size: 12 mm

Images of this individual: tag all
Tetrigidae, dorsal - Tetrix arenosa Tetrigidae, head - Tetrix arenosa Tetrigidae, lateral - Tetrix arenosa Tetrigidae, lateralX - Tetrix arenosa Tetrigidae, mid femur - Tetrix arenosa
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Contributed by MJ Hatfield on 31 March, 2013 - 10:47pm
Last updated 2 April, 2013 - 9:58pm

Close - it is Tetrix arenosa
The two species are very similar, and I'm not sure why they are split into separate genera. However, there are a few traits that help to separate them. The most obvious is the fastigium, which is much wider than one eye (as viewed from above) and it sticks out in front of the eyes (allbeit not by much). The leg structure is very similar on the two species.

Moved from Hooded Grouse Locust.
… David J. Ferguson, 2 April, 2013 - 7:58pm login or register to post comments

 
Thanks much.
I was wondering about the ID which is why I took the close up of the head. Now I need to find the other one so I can actually look at them side by side.
… MJ Hatfield, 2 April, 2013 - 10:01pm login or register to post comments

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