INSECUTOR INSCITI^ MKNSTRUUS 69 



bend of fourth vein is far removed from hind margin of 

 wing, being almost as close to the front as to the hind margin. 



Chaetocraniopsis chilensis, new species. 



Length of body, 10 mm. ; of wing, 6.5 mm. One male, 

 Chile (E. C. Reed). 



Dark brown or blackish, parafrontals and parafacials silvery 

 white pollinose, cheek grooves brownish rufous, palpi yellow, 

 second antennal joint rufous, third antennal joint and fascial 

 plate blackish with a faint silvery bloom, arista soft black. 

 Mesoscutum thinly silvery, leaving four equal vittae ; scutellum 

 pale fulvous, thinly silvery ; abdomen rather thickly silvery 

 pollinose on second and third segments except narrow hind 

 margin. Legs wholly blackish, hind tibise with unequal bristles, 

 claws slightly longer than last tarsal joint. Wings nearly clear, 

 showing no yellowish at base ; tegulas white. 



First and second abdominal segments of male with a median 

 marginal pair of macrochaetse, the first segment with one lateral 

 marginal, the second with two or three lateral marginal, the 

 third and fourth with closely set marginal row. Apical pair 

 of scutellar bristles rather short, erect ; three long lateral pairs, 

 and one shorter discal pair. Front of male about as wide as 

 both eyes, face slightly wider; facial depression deeply exca- 

 vated, about as wide as parafacials ; cheeks of male a little less 

 than one-half eye-height. 



Holotype, No. 19419, U. S. Nat. Mus. 



NEW PERUVIAN HYSTRICIINE FLIES 



By CHARLES H. T. TOWNSEND 



Neogymnomma, new genus. 



Differs from Gymnomma as follows: Cheeks of female 

 about two-thirds eye-height. Parafacials with bristly hairs, 

 one facio-orbital bristle present. No ocellar bristles. Third 

 antennal joint no longer than the elongate second, very wide 

 and truncate at end. Second aristal joint very elongate. No 

 palpi. Front tarsi of female widened. Abdomen thickly 

 beset with slightly curved subspinelike macrochc-eta, scutellum 

 with same. Cubitus with wrinkle only. 



