Family MORMOTOMYIDAE, fam. n .

Perhaps distantly related to the family Borboridz as represented by a n aberrant, cave-inhabiting form such as Speomyia absoloni Bezzi (vide supra), and agreeing with Speomyia to some extent in the shape of the hea,d in profile, as also in the buccal cuvity being enlarged, the proboscis swollen, the eyes extremely small and the ocelli absent; but differing, apart f r o m the wings being vestigial, and all macrochta: on body and legs wanting, inter alia in the exceedingly long and much more slender legs, thejirst segment of the hind tarsus especially being long and thin (cf. text-jigs. 1 and 5) instead of short and stout.

Typical genus Marmotomyia $, gen. n .