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
Upcoming Events

Registration is open for the 2024 BugGuide gathering in Idaho July 24-27

Moth submissions from National Moth Week 2023

Photos of insects and people from the 2022 BugGuide gathering in New Mexico, July 20-24

Photos of insects and people from the Spring 2021 gathering in Louisiana, April 28-May 2

Photos of insects and people from the 2019 gathering in Louisiana, July 25-27

Photos of insects and people from the 2018 gathering in Virginia, July 27-29


Previous events
TaxonomyBrowseInfoImagesLinksBooksData
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#1053117
Tetrix sp. - Tetrix arenosa
Copyright © 2015 Steve Scholnick

Tetrix sp. - Tetrix arenosa
Brookside Gardens, Montgomery County, Maryland, USA
April 5, 2015
I’m not sure if this is Tetrix arenosa or Tetrix ornata and didn’t get a photo of the face. Is it still possible to get a species ID for this individual or is it stuck at the genus? Thanks in advance

Images of this individual: tag all
Tetrix sp. - Tetrix arenosa Tetrix sp. - Tetrix arenosa
tag · login or register to post comments
Contributed by Steve Scholnick on 5 April, 2015 - 7:52pm
Last updated 6 April, 2015 - 5:50pm

Tetrix arenosa is nearly flat on the top side,
while T. ornata tends to have much more of a raised "keel" along the back, and the front part of the pronotum tends to be more roof-like. T. ornata is usually broader/bulkier in build as well. In T. arenosa the front of the fastigium is often almost a straight line from the front of one eye to the front of the other (when seen from above), and doesn't stick out much in front of the eyes. In T. ornata it tends to be more curved and stick out forward a bit more. And these shots are fine for separating this particular pair. Others pairs of similar species need to be seen from other views to separate them, often including the face.

Moved from Grasshoppers, Crickets, Katydids.
… David J. Ferguson, 6 April, 2015 - 5:50pm login or register to post comments

 
thanks for the informative and
thanks for the informative and detailed reply - much appreciated
… Steve Scholnick, 6 April, 2015 - 7:26pm login or register to post comments

Moved for expert attention
Moved from ID Request.
… metrioptera, 6 April, 2015 - 8:18am 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 © 2003-2024 Iowa State University, unless otherwise noted.

Bugguide is hosted by:

Plant Pathology, Entomology and Microbiology at Iowa State University logo

Printer Friendly Version 		Terms of Use
Privacy Statement
Site Map
Contact