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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)
Photo#1478263
tree cricket - Oecanthus - female
Copyright © 2017 dvoribird

tree cricket - Oecanthus - Female
Johnson City, Blanco County, Texas, USA
October 23, 2017

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tree cricket - Oecanthus - female tree cricket - Oecanthus - female
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Contributed by dvoribird on 21 December, 2017 - 7:45pm
Last updated 22 December, 2017 - 11:32am

Females are difficult to ID
Can rule out the varicornis group as there would be a dark strip down the top of the abdomen; can rule out the rileyi group as there would be scattered white marks on the abdomen instead of rows of marks; can rule out the niveus group as there would be large white marks on the abdomen instead of small dashes.

So this is in the nigricornis group. Can rule out Oecanthus pini as there would be rust on the head and pronotum; can rule out O. laricis as there would be deep brown on the head and pronotum; can rule out O. walkeri as the antennae would be darker and the first two segments would be white.

Neither Oecanthus forbesi or nigricornis have been documented beyond Missouri.

Therefore, this female is either O. argentinus, celerinictus or quadripunctatus.

She looks too green to me for O. quadripunctatus……leaving only O. argentinus or O. celerinictus. There are no photos of nymphs for O. celerinictus in the guide, so cannot make any comparisons.
… Wisconsin Oecanthinancy, 22 December, 2017 - 8:46am login or register to post comments

Moved
Moved from ID Request.
… Ken Wolgemuth, 21 December, 2017 - 8:02pm login or register to post comments

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