NO. 2152. NEW MUSCOID FLIES— TOWNSEND. 305 



Family SALMACIIDAE. 

 Genus PILATEA Townsend. 



Pilatea Townsend, Ent. News, vol. 27, 1916, p. 178. 



Genotype. — Masicera celer Coquillett, 1897, Rev. Tach., p. 114 

 (footnote) . 



Differs from Masicera as follows: Male and female. Male vertex 

 barely one-fourtli of head width; that of female less than one-third of 

 same. Male frontalia barely one-half as wide as one parafrontal; 

 those of female somewhat less than same. Both sexes with two re- 

 clinate orbitals, no proclinate ones in male. Facial profile rather 

 longer than frontal, paraf acials long and of nearly even width. Arista 

 thickened on basal half only. Two or three sternopleurals, the middle 

 one weak when present. Discal macrochaetae on intermediate 

 abdominal segments in both sexes. 



Named in honor of Mr. G. R. Pilate. 



Genus MASICEROPSIS Townsend. 



Masiceropsis Townsend, Ent. News, vol. 27, 1916, p. 178. 



Genotype. — Masicera pauciseta Coquillett, 1897, Rev. Tach., pp. 

 113-114. 



Differs from Masicera as follows: Female. All macrochaetae 

 weaker. Head nearly triangular in profile, the lower border very 

 short. Frontal profile distinctly shorter than facial, frontal bristles 

 not descending so low. Parafacials not so broad, of nearly even 

 width, longer. Facialia ciliate over halfway up. Cheeks narrower, 

 the eyes descending lower. Third antennal joint not over three 

 times second; the latter short. The two middle sternopleurals very 

 weak. Abdomen flattened and widened; median marginal pair of 

 macrochaetae of first segment very weak. Cubitus very obtuse; hind 

 and apical cross veins straight and not parallel with each other; the 

 latter parallel with inner margin of wing. 



MADREMYIA, new genus. 



Genotype. — Madremyia parva, new species. 



General form of head and its appendages much like that of CJiroma- 

 tocera, but evidently not nearly related to that genus. Differs as fol- 

 lows: All macrochaetae heavier. No proclinate orbitals, but some 

 more or less reclinate bristles and long hairs outside frontal row. 

 Face not so broad, widening but little from front, Frontals de- 

 scending rather over haKway to cheek grooves, the parafacials other- 

 wise bare. Arista sharply pointed, thickened to a little short of tip; 

 second joint elongate, about or nearly half as long as the thickened 

 36399°— Proc.N.M.vol.51— 16 20 



