Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada
 

Register · Log In
HomeGuideID RequestRecentFrassForumsDonateHelp
Clickable Guide
Moths Butterflies Flies Caterpillars Flies Dragonflies Flies Mantids Cockroaches Bees and Wasps Walkingsticks Earwigs Ants Termites Hoppers and Kin Hoppers and Kin Beetles True Bugs Fleas Grasshoppers and Kin Ticks Spiders Scorpions Centipedes Millipedes

Calendar
BugGuide Gathering
Pack Forest
Washington State
July 10-12, 2009
Details...

Photos from the 2009 gathering
 
Photos from the 2008 gathering in Tennessee
 
Photos from the 2007 gathering in Minnesota

TaxonomyBrowseInfoImagesLinksBooksData
Home » Guide » Arthropods (Arthropoda) » Insects (Insecta) » Grasshoppers, Crickets, Katydids (Orthoptera) » Long-horned Orthoptera (Ensifera) » True Crickets (Gryllidae) » Tree Crickets (Oecanthinae) » common tree crickets (Oecanthus) » nigricornis group (Oecanthus nigricornis group)
Photo#142033
Tree Cricket - Oecanthus
Copyright © 2007 Tom Bentley

Tree Cricket - Oecanthus
Nachusa Grasslands, Lee County, Illinois, USA
September 1, 2007
tag · login or register to post comments
Contributed by Tom Bentley on 1 September, 2007 - 9:10pm
Last updated 15 January, 2009 - 9:38pm

Moved
Moved from Oecanthus. While a definite species ID cannot be made on this female, she is definitely in the nigricornis group -- meaning she has dark antennae. My HUNCH is Forbes...but cannot be certain.
… Wisconsin Oecanthinancy, 15 January, 2009 - 9:38pm login or register to post comments

Nice photo of a female
Without the antennal markings, it can't be definitely ID'd. However, the possibilities are: Black-horned, Four-spotted or Forbes' tree cricket. While this has no scientific basis, I noticed the distal portions of the antennae on this female APPEAR to have a brownish tint. I noticed a similar appearance on the Forbes' tree crickets I photographed this past summer. Forbes' are known to occur in Illinois. At this point in time, as far as I know, Forbes' can only be definitely ID'd by the pulses per second of the song of the males at known temperatures. (ie. 80 degrees = approximately 80 pulses per second / 60 degrees = approximately 60 pulses per second).
… Wisconsin Oecanthinancy, 15 January, 2009 - 9:35pm login or register to post comments

Comment viewing options
Select your preferred way to display the comments and click 'Save settings' to activate your changes.

Disclaimer: Dedicated naturalists volunteer their time and resources here to provide this service. We strive to provide accurate information, but we are mostly just amateurs attempting to make sense of a diverse natural world. If you need expert professional advice, contact your local extension office.

Contributors own the copyright to and are solely responsible for contributed content.
Click the contributor's name for licensing and usage information.
Everything else copyright © 2003-2009 Iowa State University, unless otherwise noted.

Bugguide is hosted by Iowa State University Entomology.

Printer Friendly Version 		Terms of Use
Privacy Policy
Site Map
Contact