1913] Agromyza aftd Cerodontha. 307 



•erous hairs, which are yellowish in color; mid tibia with the posterior 

 bristles small. Wings clear; second costal division about two and one- 

 half times as long as first; subcostal vein distinct, evidently coalescent 

 with first at apical fourth; inner cross vein at slightly before end of 

 first vein; outer at slightly beyond wing middle, and at one and one- 

 half times its own length from inner; veins 3-4 slightly divergent at 

 apices; last section of fifth vein rather over two-thirds as long as the 

 penultimate section. Halteres yellow, knob whitish. 

 Length 2 mm. 



Type: Cat. No. 15573, U. S. N. M. 



Locality: Eureka California, May, (H. S. Barber). 



Food-plant unknown. 



32. Agromyza fragariae, new species. 



Plate XXVIII, Fig. 5. 



Male and Female: Frons dark brown, or black brown; center 

 stripe opaque; orbits subopaque; breadth of frons distinctly over one- 

 third the width of head; orbit one-fourth as broad as center stripe; 

 four orbital bristles present, the hairs on orbits not ntimerous; ocellar 

 region shining, black, raised, frontal triangle not distinguishable; 

 antennse black, sometimes with indications of paler color at apex of 

 second joint on inner surface; rather below the average in size; second 

 joint with weak apical hairs, and the dorsal bristle distinct, third joint 

 not longer than broad, rounded in front, and covered with short brown- 

 ish pile; arista brown, thickened on basal fourth, the pubescence close, 

 but very short ; length of arista, equal to from its base to slightly beyond 

 second uppermost orbital bristle; face shining black, perpendicular, 

 keel very slight; cheeks pale brown, linear at anterior margin, about 

 one-third as high as eye at posterior margin; marginal bristles in a 

 double row, numerous, of moderate length, extending above level of 

 vibrissa, which is distinctly differentiated; proboscis yellow; palpi 

 black. Mesonotum subopaque, black, with slight indications of gray- 

 ish dusting; four pairs of dorso-centrals present, which become shorter 

 towards front, the anterior pair slightly in front of suture; 6-7 irregular 

 rows of setulce between the dorso-centrals; the pair of bristles between 

 the posterior pair of dorso-centrals distinctly differentiated from the 

 discal setulas, about as long as anterior pair of dorso-centrals; pleurse 

 shining black-brown, the suture yellowish brown; squamae whitish, 

 fringe brownish-yellow; postnotum and scutellum black, subshining. 

 abdomen shining black, subovate in female, elongate in male; covered 

 with hairs, those on posterior margins of segments bristle-like; the dor- 

 sal hairs on abdomen and mesonotiun are brownish yellow. Legs 

 rather slender, black-brown, tibiee and tarsi paler; posterior mid tibial 

 bristles minute. Wings elongate, grayish; first costal division one- 

 third as long as second; subcostal vein rather distinct, almost coalescent 

 with first at its apex; inner cross vein at slightly before end of first vein, 

 and at middle of discal cell; outer cross vein at about one and one-half 



