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Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » Cockroaches and Termites (Blattodea) » Blaberoidea » Ectobiidae » Ectobiinae » Ectobius » Forest Cockroach (Ectobius sylvestris)
Photo#1256146
Ectobius sylvestris - male
Copyright © 2016 metrioptera

Ectobius sylvestris - Male
Cornell Campus, Ithaca, Tompkins County, New York, USA
July 9, 2016
Swept from tall bushes.
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Contributed by metrioptera on 11 July, 2016 - 7:36pm
Last updated 1 January, 2017 - 1:29pm

Moved
Moved from Dusky Cockroach.
… Alan Jeon, 1 January, 2017 - 1:27pm login or register to post comments

 
how are these differentiated...
from males of E. lapponicus? Just curious. And thanks for the IDs!
… metrioptera, 1 January, 2017 - 1:30pm login or register to post comments

 
Honestly, it's more of a guess
since you've found female sylvestris in the same region it's probably safe to assume this is a male sylvestris.

Also, there appears to be a difference in pronotum pattern between sylvestris and lapponicus. The dark area in the pronotum of sylvestris seem to be "bell shaped" whereas it is circular in lapponicus (you can observe this difference in females too). However, this isn't a confirmed characteristic to distinguish the two so I wouldn't rely on it too much.
… Alan Jeon, 1 January, 2017 - 6:11pm login or register to post comments

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