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.