What is it?

[Theocus]

Something from my env science degree, it's a form of malarian mimicry where it Copts the coloration of another species for it's own survival, if you look like a bee you do not get eaten by birds etc!! Flys are a great on for it along with other parasitic wasps. Nature sure is clever

[chris cnc]

saw one of these the other day im sure! dead interesting, like those caterpillars that look like a twig

[Theocus]

ahh but that is just camoflague, this is copying other species that have desirable traits and habits. Pheromones can also be replicated etc.

[Catweazle]

I saw one of these in my front porch a few days ago, first time I have ever seen one in 47 years living here so I guess they must be moving habitat.