meloidae

Myrmecos

Tag archives for meloidae

Answer to the Monday Night Mystery

I am impressed. Several of you* figured out the mystery behavior: reflex bleeding, a defensive response employed by some arthropods with especially nasty hemolymph to deter predators. A couple of you even pegged the identity of the mystery arthropod, a blister beetle in the genus Epicauta. Here’s the uncropped photo: Five points each to Tim,…

Some of the oddest blister beetles in western North America are in the genus Nemognatha.  Their mouthparts have become elongate to form a proboscis- a common trait among other groups of insects- but rare among the beetles.  They are commonly seen on flowers feeding on nectar. photo details: Canon MP-E 65mm 1-5x macro lens on…

Epicauta pardalis – spotted blister beetle Tucson, Arizona Here’s a beetle so toxic it can kill a horse. The horse doesn’t even need to ingest the beetle, it just needs to ingest something that the beetle bled on.  Blister beetles produce the defensive compound cantharadin- the active ingredient of the aphrodesiac Spanish Fly- which they…