No. 2301. NEjy SPECIES OF MUSCOID FLIES— TOWNSEND. 571 



Dark brown. Head brass j-cinereous. Frontalia light brown. 

 Palpi fulvo-rufous. Humeri and pleura thinly gray pollinose. 

 Mesonotum soft blackish, with faint traces of brownish pollen; 

 vittae subobsolete, five showing in front of suture, of which the 

 outer on each side is wide and blotch-like. Abdomen pale brassy 

 pollinose on irregular forward half of last two segments and on 

 second segment each side of median line anteriorly, the median vitta 

 of dark brown distinct throughout. Wings clear. Tegulae nearly 

 white. 



Type.— Cat. No. 22217, U.S.N .M. 



ANAMETOPOCHAETA, new genus. 



Genotype. — Anametopochaeta olindoides, new species. 



Clypeus moderately sunken. Epistoma rather short, faintly 

 warped. Facialia bare. Proboscis short, palpi moderately stout. 

 Third antennal joint nearly three and one-fourth times second. 

 Arista longer than antennae, pubescent halfway on upper side. 

 Eyes somewhat thinly short-hairy. Female vertex nearly one- 

 fourth head width; front but little widened anteriorly. Frontals 

 aborted, consisting of about five microscopic short fine hairs, one 

 slightly below base of antennae. Proclinate fronto-orbitals also 

 aborted, represented by two microscopic short hairs. Two strong 

 reclinate fronto-orbitals, and one strong reclinate vertical. No 

 ocellars. Parafacialia bare. Cheeks about one-fourth eye length. 

 Two sternopleurals, preacrostichals, and postacrostichals; three 

 postintraalars, postsuturals, and lateral scutellars; minute apical 

 scutellar pair. Third vein bristled only at base, others bare. Apical 

 cell very narrowly open a little before tip. Hind crossvein con- 

 siderably nearer to cubitus. Tarsi long. Median marginal pair on 

 first two segments; marginal row on last two segments; weak discal 

 row on anal segment. Female without sharp piercer. 



ANAMETOPOCHAETA OLINDOroES, new species. 



Length, 6.5 mm. One female, Chaquimayo, Peru, 2,500 feet, 

 February 5, 1910, on fohage (C. H. T. Townsend). 



The coloration almost exactly agrees with Desvoidy's description 

 of Olinda hrasiliensis,^ only the tegulae are yellowish. The long 

 arista and the apical crossvein bowed in preclude identification 

 with that genus. The black parts are antennae, frontalia, four 

 thoracic vittae, narrow base of scutellum, first abdominal segment, 

 irregular posterior half of last three segments, and legs. A faint 

 narrow brown median vitta shows on abdomen. Palpi pale fulvous; 

 proboscis brownish. All the rest is quite deeply golden pollinose. 

 Wings faintly yellowish-smoky across middle and less so apically. 



Type.— C&t. No. 22225, U.S.N.M. 



« Essai Sur les Uyodaires, 1830, p. 116. 



