96 D. W. COQUILLETT. 



Argyraineebe cybele n. sp. — Black, apex of knob of halteres white. 

 Pile of head and body black, except many on front end of thorax, several on 

 pleuriB, a cluster at hind corners of thorax and on sides of first abdominal seg- 

 ment, which are white; scales of head, thorax and scutellum yellowi&h white, 

 mixed with black on the last two, those of abdomen black, on hind end of each 

 segment white; styliform portion of third anteunal joint scarcely longer than 

 the thickened basal part; style as long as the styliform portion of the third 

 joint; fiice greatly retreating below, proboscis not projecting; all femora and 

 tibiie bristly, pulvilli elongated. but narrow. Wings hyaline, the base brown, the 

 outline of this color extending from apex to auxiliary vein transversely in an 

 undulatory manner to last fifth of discal cell, then basally nearly to small cross- 

 vein, then zigzaging across discal and base of third posterior, then basally and 

 across fourth posterior cell, then following penultimate vein nearly to its apex, 

 then crossing anal and going through axillary cell nearly to its base; a hyaline 

 spot near bases and another near apices of second basal, anal and axillary cells, 

 two in marginal and in first basal, one in second submarginal, first posterior and 

 discal cells; a brown cloud in marginal cell back of apex of first vein, another 

 at bases of second submarginal and second posterior cells, another on vein be- 

 tween discal and third posterior cell, situated on a stump of a vein. Length 6 mm. 



Southern California. Three specimens in May. 



Argyranioeba sueciiicta n. sp. — Black, femora and tibise yellowish, 

 knob of halteres largely light yellow. Pile of head black, the scales yellowish ; 

 pile and scales of body mixed black and yellowish, a stripe of black pile between 

 humeri and wings; pile of sides of abdominal segments three to six long, very 

 dense, black; pile of venter white; styliform portion of third antennal joint 

 four times as long as the thickened basal part, style one-fourth as long as the 

 styliform portion of the third joint; face much retreating below, proboscis not 

 projecting; all femox-a and tibiie bristly, pulvilli very small. Wings hyaline, 

 front edge brown, beginning in apex of first submarginal cell, filling apex of 

 marginal cell, then contracted to first vein, which it follows to a point nearly 

 opposite apex of discal cell, then crossing to second vein, which it follows nearly 

 to small cross-vein, then crossing to discal cell and following its front edge 

 nearly to base of this cell, which it crosses and continues through extreme apex 

 of second basal cell, middle of anal cell and encroaches slightly upon the axillary 

 cell near its base; axillary cell and alulets very narrow; veins at bases of first 

 submarginal and first posterior cells bordered with yellow, a yellow spot near 

 middle of first basal cell. Length 9 mm. 



Arizona. A single specimen. 



Argyrainoeba varia Fabr. 



Specimens of this European species were received from V. von 

 Roder, of Germany, and agree in all respects with specimens col- 

 lected by the writer in Southern California in May. It has not 

 hitherto been recorded from this country. 



