Great image of a fabulously interesting fly. Rarely seen, Dasylechia atrox is restricted to forested areas of northeastern USA (and, recently, also southern tip of Ontario, Canada). Although fly is clearly a member of the Laphriinae, it is not very close to Laphria; in fact, only known close relative is Afromellitodes of S. Africa! (These two genera share possession of very large, spherical-shaped palpi, an absolutely unique character among Asilidae. The swollen palpus can be seen in the above photo -- immediately below the eye.)