594 CALIFORNIA ACADEMY OF SCIENCES. 



entirely black, wings and all. The males have the same 

 thoracic and front tibial spines as the females. 



PSYCHODID^. 



3. PsYCHODA sp. Marin county, Cal. (Haines). A 

 single specimen in too poor condition for determination. 



STRATIOMYID^ . 



4. Hermetia aurata Bellardi. San Jose del Cabo, 

 Baja California (Eisen). September. Thirty-four spec- 

 imens. These I refer all to this species. They are 

 very uniform in size. All but one are about 11 mm. long, 

 and that one is 9 mm. The abdomen is of a yellowish- 

 brown color, with first segment blackish, and other seg- 

 ments clothed with the short golden pubescence except a 

 bare spot on lateral edge of each. 



5. Hermetia eiseni n. sp. 



Three specimens, measuring 9 to 14 mm., have the 

 abdomen blacker, and the golden pubescence absent from 

 anterior half of fourth segment and anterior two-thirds or 

 more of second and third segments, these areas being 

 dark brown and uniting the lateral spots of the segments. 

 The golden pubescence extends anteriorly in an angular 

 projection on each side of these three segments. They 

 also differ in having less yellow on the wings, this color 

 being an arc -like marking extending narrowly along an- 

 terior edge of anal cell and across discal to marginal cells. 

 The portion of the wing anterior to this arc is blackish 

 like rest of wing, but in H. aurata this portion is all yel- 

 low like the arc. The thorax is somewhat darker and 

 less golden pubescent, but in other respects, including 

 coloration of legs and antennce, the species agrees with 

 H. aurata. The golden pubescence of thorax is confined 

 to a median line considerably or greatly abbreviated be- 

 hind, and to a marginal band on hind border. The spec- 



