An odd-looking fly with an even odder life history.
Pyrgota undata, a boldly marked, largely nocturnal fly, is a parasite of May beetles, usually attacking its host in mid-air.
A highly specialized bee, associated with the wetland shrub Lyonia ligustrina, is documented in iNaturalist.
Perhaps because of their elongated shape, members of the fly family Therevidae have acquired the common name “stiletto flies.”
A rarely reported, carrion-loving fly turns up on the southern shoreline of Martha’s Vineyard.
Flies — the order Diptera — tend to be either ignored or reviled by humans. But this diverse group of insects, with about 17,000 known species in North America, is of enormous ecological importance.