Scenopinids, commonly called window flies, are known worldwide, but until recently, were unknown from the fossil record. Adults of extant forms can be found on flowers, but are more commonly taken at windows inside buildings, which give rise to their common name. Larvae are free-living and have been recorded as predaceous on termites, carpet beetles, and other small organisms.

Yeates & Grimaldi (1993) described the only known fossil of this family.

*METATRICHIA Coquillett, 1900c: 500. Type species: Scenopinus bulbosa Osten Sacken, 1877, by original designation.

pria Yeates & Grimaldi, 1993: 2. NT: Dominican Republic (Oligocene/Miocene) [A].