|Bug on the couch - REK|
|H. axyridi larva - Wikimedia|
If that name doesn't ring a bell, think back to the onset of winter when these little stinkers started invading your house or garage, crawling around and taking little annoying nips on your neck. When you slapped one or picked it off it left a foul odor on your fingers. I suspect you remember them now.
|First instar (emergent larvae) with empty egg cases - Barry Grivett|
"Like other lady beetles they use isopropyl methoxy pyrazine as a defensive chemical to deter predation, but also have this chemical in their hemolymph at much higher concentrations than many other such species, along with species/genus-specific defensive compounds such as harmonine. These insects will "reflex bleed" when agitated, releasing hemolymph from their legs. The liquid has a foul odor (similar to that of dead leaves) and can cause stains. Some people have allergic reactions, including allergic rhinoconjunctivitis when exposed to these beetles."
|Cannibalization? A firm prolonged grip on the head - REK|
- Looking for help in identifying a bug? Bi-State Bugs is a new Facebook page focused on Missouri and Illinois with a lot of heavy hitters following it to answer questions or just admire your latest find.
- Details on Harmonia Axyridi are here at Animaldiversity.org.