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Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » Grasshoppers, Crickets, Katydids (Orthoptera) » Long-horned Orthoptera (Ensifera) » Crickets (Gryllidea) » True Crickets (Gryllidae) » Tree Crickets (Oecanthinae) » Common Tree Crickets (Oecanthus) » Nigricornis Group (Oecanthus Nigricornis Group) » Black-horned Tree Cricket (Oecanthus nigricornis)
Photo#1007114
Black-horned Tree Cricket? - Oecanthus nigricornis - female
Copyright © 2014 Stuart Tingley

Black-horned Tree Cricket? - Oecanthus nigricornis - Female
Cap-Pele - Parc de l'Aboiteaux, Westmorland County, New Brunswick, Canada
October 7, 2014

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Black-horned Tree Cricket? - Oecanthus nigricornis - female Black-horned Tree Cricket? - Oecanthus nigricornis - female Black-horned Tree Cricket? - Oecanthus nigricornis - female
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Contributed by Stuart Tingley on 8 October, 2014 - 4:46pm
Last updated 8 December, 2018 - 5:42pm

Moved
Moved from forbesi vs nigricornis.
… Wisconsin Oecanthinancy, 8 December, 2018 - 5:42pm login or register to post comments

Note
I have since learned that both Black-horned and Forbes' could have this coloring. However, after work by researchers who analyzed songs of tree crickets in multiple states, it is now generally accepted that greenish tree crickets with dark on the antennae, head, pronotum and/or limbs - that are east of Ohio - are Black-horned instead of Forbes'.
… Wisconsin Oecanthinancy, 8 December, 2018 - 5:42pm login or register to post comments

 
Thanks!
Thanks for your wonderful input!!
… Stuart Tingley, 8 December, 2018 - 7:41pm login or register to post comments

 
Should also mention....
...this photo shows a spermatophore still attached to this female (pearly white ball near the base of the ovipositor).
… Wisconsin Oecanthinancy, 8 December, 2018 - 7:43pm login or register to post comments

O. forbesi and O. nigricornis can look identical....
Only DNA testing or knowing the song pulse rate of a singing male can distinguish one from the other.

I'm curious if the color of the ventral abdomen could be a clue. It seems to me that O. forbesi tend of have reddish-brown, whereas O. nigricornis has black. I'm hoping to study this more next year.
… Wisconsin Oecanthinancy, 11 October, 2014 - 10:23pm login or register to post comments

Moved
Moved from Tree Crickets.
… metrioptera, 8 October, 2014 - 6:08pm login or register to post comments

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