Vol. xxviii] 



ENTOMOLOGICAL NEWS. 



417 



hina humcralis Will., Chrysotoxum integre Will., and Baccha 

 obscuricornis Loew. 



The writer is indebted to Mr. F. Knab, U. S. National 

 Museum, for the identification of many of the species listed 



above. 







Pipiza californica sp. nov. 



Length 6.25 mm. to 7.75 mm., average about 7.30 mm. 



9 . Oval, shining black without yellow abdominal markings. Face 

 and front : Width almost equal throughout, at ocelli four-fifths that at 

 base of antennae, from antennae to mouth constant; profile straight, 

 gently receding from antennal tubercle to mouth; ground color shining 

 black, covered below antennae with white, above antennae with white 

 and light yellow pile; on vertex there is a tuft of long white pile; in 

 middle of front a shallow transverse groove and an interrupted trans- 

 verse stripe of white pollen which is prolonged shortly down anterior 

 orbits, its extremities briefly separated from the upper limits of the 

 narrow pollen band which follows the orbits around the eyes to the 

 vertex; occiput fringed with white pile; cheek shining black, clothed 

 with pale yellow pile. Eyes covered with rather long white pile. 



Antennae : Black, under side of third, and sometimes of second, 

 joint reddish-yellow or reddish-brown: basal joints black pilose; ter- 

 minal joint elongate oval, somewhat exceeding in length the combined 

 basal joints; arista bare, brownish-black, basally reddish-yellow but 

 sometimes all brownish-black, in length slightly exceeding the third 

 joint; third joint almost twice as long as broad. 



Thorax black, shining, the anterior half more brightly than the pos- 

 terior; pile white or light-colored. Scutellum black, obscurely shining, 

 with rather long light-colored pile. 



Pipiza californica sp. nov. Head and wing of male, antennae of male and of female. 



Wings hyaline, stigma light amber; last section of fourth longitudinal 

 vein rectangular and petiolate near base, angulated before middle into 

 first posterior cell, the re-entrant angle thus formed sometimes petio- 

 late; outer angle of discal and first posterior cells acute to rectangular; 

 haltcres light yellow, knob brown in centre. 



