ENTOMOLOGICAL NEWS. 5OI 



Pseudatrichia griseola n. sp. Head yellow, opaque, gray, pruinose ; 

 upper part of occiput and the antennae black ; proboscis and palpi yellow ; 

 thorax black, opaque, densely gray pruinose ; the humeri and spots on 

 the pleura yellow ; scutellum yellow, marked with a median brown vitta ; 

 abdomen yellowish, subopaque ; knobs of halteres and the legs yellow- 

 ish ; wings hyaline ; veins yellow ; last section of third vein less than one- 

 half as long as the preceding section ; length 3 to 4 mm. 



Mesilla, N. Mex. (T. D. A. Cockerell, May 25, 1897), 

 and L,os Angeles Co. , Cal. A pair from the latter locality, cap- 

 tured by the writer, were resting on the bare ground like a 

 Thereva. Two males and one female. Type No. 4712, U. S. 

 National Museum. 



A Neglected Platymetopius. 



By HERBERT OSBORN, Ohio State Univer., Columbus, O. 

 Platymetopius hyalinus n. sp. 



Elytra hyaline with dark points and fuscous bands arranged, one sub- 

 basal, one median and one sub-apical. Face bright sulphur yellow, 

 vertex, pronotum, and scutellum yellow with some infuscation or greenish 

 washes. Length $ 5.5 mm.; $ 4.25 mm. 



Vertex acute, nearly twice as long as width at base, slightly less acute 

 and produced in male, anteriorly depressed and with a conspicuous 

 median impressed line running from base to tip. Front narrow, clypeus 

 widening to apex, loras almost a half-circle, genae evenly rounded. Pro- 

 thorax of usual form, sides short, posterior edge very slightly emarginate 

 at center. Elytra hyaline, without veinlets or narrow lines, the nerves 

 conspicuous, but one transverse vein between second and third sector. 



Color : vertex yellow, more or less infuscated, the females showing 

 a yellow wedge anteriorly, the males with deeper infuscation but having a 

 marginal and anterior median stripe lighter. Face clear yellow with 

 a marginal fuscous line just beneath margin of vertex, the margin of 

 cheeks becoming somewhat greenish. Prothorax greenish yellow with 

 slight trace of fuscous anteriorly in $ and faint milky irrorations in $. 

 Elytral nervures fulvous in 9 , paler in $. Three fairly distinct transverse 

 bands of fuscous spots, one, midway on clavus and including first trans- 

 verse vein consists of transverse fuscous spots behind which to tip of cell 

 is a smoky patch. The middle band includes a distinct black point at tip 

 of clavus and on the nodal vein. The subapical band includes the ante- 

 apical transverse veins, the inner and outer of which are black, the 

 fuscous points appearing in outer and middle anteapical cells in proximal 

 part of three apical cells, those in the outer and middle apical cells forming 

 a broken circle. Pectus black with yellow borders on coxal and pleural 

 pieces. Abdomen above black on disk in female, with yellow border and 



