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

Discussion of 2018 gathering

Photos of insects and people from the 2015 gathering in Wisconsin, July 10-12

Photos of insects and people from the 2014 gathering in Virginia, June 4-7.

Photos of insects and people from the 2013 gathering in Arizona, July 25-28

Photos of insects and people from the 2012 gathering in Alabama

Photos of insects and people from the 2011 gathering in Iowa

Photos from the 2010 Workshop in Grinnell, Iowa

Photos from the 2009 gathering in Washington

TaxonomyBrowseInfoImagesLinksBooksData
Photo#163909
Brachinus alternans

Brachinus alternans
Pulaski County, Kentucky, USA
May 12, 2007
Size: 14 mm
Brachinus alternans. Attracted to UV light, I would have missed it if I hadn't accidentally stepped on it, which elicited its popping sound.

Metasternum normal (wings developed), bluish elytra, uniform pubescence on elytra, and mentum/submentum very setose point to this species.

Brachinus
species are very difficult to separate taxonomically as they often differ only by "hair counting" in published keys. Best key to the North American fauna is by Terry Erwin (1970) in Quaestiones Entomologicae 6:4-215.

 
Thanks
I need to have a look at that.

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