450 



ENTOMOLOGICAL NEWS. 



[Dec, '15 



in both sexes. Hypopygium distinct, complicated. Legs mod- 

 erately slender ; tibiae at most with short spurs ; hind tibiae and 

 tarsi of male sometimes with characteristic appendages or pro- 

 cesses ; pulvilli well developed ; empodium hairlike. Wings with 

 second vein short, ending in and near apex of first ; vein seven 

 weak, sometimes evanescent ; first section of fourth vein oblit- 

 erated or faint; marginal cell closed; only one submarginal 

 cell ; four open posterior cells ; anal cell narrowly open, or 

 closed near margin. 



Genotype. — Mythicomyia rileyi Coquillett. 



Fig. 1. Mythicomyia flavipes : wing. 2. Ibid.: profile of head of male. 3. M. armata: 

 hind tibia and base of tarsi. 4. M. scutellata: antenna. 5. M. armipes : fore 

 tibia. 6. Ibid.: basal joint of hind tarsi. 



