The power of chemical defense

Carabid beetles are well known for their stinky and sometimes explosive chemicals that they produce from glands housed in their abdomens. Sometimes I can’t resist playing a little game; a sort of “pull my finger” routine.  I make a beetle “angry” enough to spray and then drop it into the middle of a cluster of ants.  In this case I plopped an agitated Promecognathus laevissimus in a pile of ants (Formica moki?).  Instant personal space for the beetle.

Ants in Curry Canyon, Contra Costa Co.

Unsuspecting ants in Curry Canyon, Contra Costa Co.

Ants meet Promecognathus

Ants meet Promecognathus

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About Kip Will

I'm an insect systematist with expertise in carabid beetles, who is always happiest in the bush.
This entry was posted in Carabids, Coleoptera, Entomology. Bookmark the permalink.

One Response to The power of chemical defense

  1. Pingback: Uncanny Bombardier Beetles | pterostichini

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