584 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. 56. 



SCHAUMU DESVOroYI, new name. 



This name is proposed for Tacldna himaculata Robineau-Desvoidy 

 (not Hartig) 1863.^ 



Tribe CROCUTINI. 

 XEOPROSOPA, new genus. 



Genotype. — Xeoprosopa uruliuasi, new species. 



Clypeus long, narrow, flush. Epistoma cut off, not warped. Fa- 

 cialia bare, half as wide as clypeus. Vibrissae inserted below middle 

 of oral margin. Proboscis about one and one-half times head height; 

 palpi long, moderately stout. Third antennal joint about four times 

 second. Arista long, pubescent, second joint elongate. Eyes bare. 

 Frontals weak, stopping at base of antennae. Two proclinate 

 fronto-orbitals in male. Ocellars weak. Parafacialia bare, as wide 

 as facialia. Cheeks one-fifth eye length. No preacrostichals ; one 

 postacrostichal; three sternopleurals, postintraalars, and postsu- 

 turals; two lateral scutellars; no apical scutellars, only hairs. First 

 vein bristled to tip, third haK way or more to small crossvein; others 

 bare. Apical cell closed tightly in tip. Hind crossvein nearer to 

 cubitus. Tarsi of male elongate. No median marginals on fu-st two 

 segments; median marginal pair on third; marginal row on anal seg- 

 ment. 



XEOPROSOPA URUHUASI, new species. 



Length, 7 mm. One male, Uruhuasi, Peru, 6,500 feet, February 

 3, 1910, on flowers of Bacchans (C. H. T. Townsend). 



Antennae black. Frontalia deep velvety blacldsh-brown. Facial 

 plate, parafacialia, and parafrontaha burnished silvery-white, vari- 

 able in changing lights. Palpi yellowish, tips dark. Mesonotum 

 brown; the vittae nearly obsolete. Humeri and pleura silvery to 

 ashy. Abdomen fulvous, becoming rufous on median line and pos- 

 terior half, the tip of anal segment and fragmentary median line on 

 third and anal segments blackish. Wings hghtly yellowish-smoky,, 

 increasing costally. Tegulae pale yellowish. 



Type.—Q2,t. No. 22214, U.S.N.M. 



CROCUTA LUTEA, new species. 



Length, 4.5 mm. Two females, Franconia, New Hampshire, July 

 20 and 21, 1915 (C. H. T. Townsend). 



Almost entirely pale yellow. Third antennal joint and arista 

 strongly tinged with fuscous. Tarsi fuscous. Wings clear. One or 

 two bristlets usually on first vein before tip. Third vein usually 

 bristled a little beyond small crossvein. Tegulae tawny-whitish. 

 Four postsuturals and postacrostichals. 



Type.— C&t. No. 22266, U.S.N.M. 



• Dipt. Env. Paris, vol. 2, p. 44. 



