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Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » Beetles (Coleoptera) » Adephaga » Ground Beetles (Carabidae) » Brachininae » Bombardier Beetle (Brachinus) » hirsutus group (Brachinus hirsutus group) » Brachinus hirsutus
Photo#159494
Bombardier beetle - Brachinus hirsutus
Copyright © 2007 Jillian H. Cowles

Bombardier beetle - Brachinus hirsutus
Cienega Creek, Pima County, Arizona, USA
December 2, 2007
Size: 1 cm
Found under rock along dry creek bed. As many as thirty individuals in a cluster. During capture the beetle defended itself with "pop" from back end with visible vapor cloud shooting out.
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Contributed by Jillian H. Cowles on 2 December, 2007 - 10:09pm
Last updated 13 September, 2018 - 10:39am

Moved tentatively; must be it
Moved from Bombardier Beetle.
… v belov, 13 September, 2018 - 10:39am login or register to post comments

Carabidae : Brachinus sp.
I only trust microscopic examination for separating species of Brachinus. That's especially true for several little-known species in southwest. Many species appear superficially alike until, for example, you look closely at ventral surface for the pattern of color and pubescence (hairs).
… Peter W. Messer, 3 December, 2007 - 12:36pm login or register to post comments

Nice!
What a nice shot! Nice to see your work here again, Jillian:-)
… Eric R. Eaton, 3 December, 2007 - 11:47am login or register to post comments

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