THE CANADIAN ENTOMOLOGIST. 331 



Macrophya Bakeri, n. sp. — Male : Length, 6 mm. Clypeus with a 

 deep V-shaped notch at the apex, the lobes broad ; labrum about as long 

 as the clypeus, and notched like it. Supraclypeal fovea shining, not well 

 defined ; middle fovea wanting ; lateral ocellar furrows deep and narrow 

 to the ocelli, where they become broad and shallow ; the orbital carina 

 almost wanting. Antennae stout, the third joint as long as joints 4 and 5; 

 joints four and five narrowed at the base. All the lobes of the mesonotum 

 with about the same sculpture ; scutellum a little more sparsely than the 

 mesonotum; the scutellum appendage roughened: tarsal claws about equal. 

 Dorsal abdominal segments very finely sculptured, shining. Hypopygidium 

 slightly but distinctly notched at the apex. Black ; a white spot on the 

 labrum ; a narrow line on the pronotum and the tegula?, and the posterior 

 margin of the basal plates yellowish. Legs black ; the four anterior legs 

 from near the base of the femora beneath, the posterior femora and the 

 tibiae, except the base and apex, above yellow. Wings hyaline, iridescent; 

 brown and black, the stigma pale brown. 



Type locality : Claremont, California. One male, collected by Prof. 

 C F. Baker. 



Macrophya truncata, n. sp. — Female : Length, 5 to 6 mm. Anterior 

 margin of the clypeus truncate; the labrum not more than half as long as 

 the clypeus, at the apex truncate. Supraclypeal fovea shining, not 

 distinctly defined ; middle fovea distinct, circular ; lateral ocellar furrows 

 distinct above the antennae and near the ocelli, in the other places poorly 

 defined; orbital carina not strong. The third antennal joint about as long 

 as the 4 and 5 joints combined. The punctures of all the lobes of the 

 mesonotum about the same ; the punctures of the scutellum larger and 

 more scattered ; scutellar appendage punctured ; the tarsal claws with 

 teeth about equal. Dorsal abdominal segments with rather large distinct 

 punctures, closer in some specimens than in others; sheath rounded at the 

 apex, the lower margin somewhat oblique. Colour black; anterior margin 

 of the clypeus cream-coloured; posterior margin of the pronotum, tegulae, 

 spot on the scutellum, a spot on the pleurae, most of the basal plates, 

 apical dorsal segments and most of the venter yellow. Legs yellow; coxae 

 (the posterior pair beneath pale), trochanters, base of the femora (broadly 

 so above), tips of the tibiae and most of the tarsi black. Wings hyaline, 

 slightly dusky, iridescent ; venation dark brown, lower part of the stigma 

 pale brown. 



Male : Length, 5.5 to 6 mm. The male differs from the female in 

 the absence of the pale spot on the pleurae, and the black of the femora is 



