THE CANADIAN ENTOMOLOGIST. 399 



is no yellow on the mesonotum, the legs have a black line above on the 

 femora and tibiae. The venation is darker and the stigma is dark brown ; 

 there is no surrounding nervure in the hind wings. 



Type locality : Claremont, California. Three females and three 

 males collected by C. F. Baker. 



The following' table will separate the female from its allies : 



Orbits pale (Texas) mutabilis, Knw* 



Orbits black i . 



i. Coxae black (legs reddish) purpuridorsum, Dyar. 



Coxas pale 2. 



2. Abdomen beyond the second segment pale ; the transverse radius in 



the middle of the third cubital margi?iicollis, Nort. 



Abdomen above black ; the transverse radius in the apical third of the 

 third cubital cell occidental is, Roh. 



Aphanius lenis, n. sp. — Female : Length, 5 mm. In the middle 

 the clypeus is convex, the anterior margin is truncate ; labrum triangular, 

 the apex obtuse. Supraclypeal fovea deep ; the middle fovea large, open 

 below, the lateral walls very strong ; the walls of the ocellar basin rounded ; 

 the lateral ocellar furrows interrupted on the front ; at the top of each 

 lateral ridge of the middle fovea is a deep oval pit ; head shining, 

 polished. The scutellum with a few rather small punctures ; the scutellar 

 appendages smooth ; tarsal claws deeply cleft, the inner tooth a little the 

 shorter ; the stigma angled beneath, tapering to an acute apex ; transverse 

 radius curved and joining the radius a little before the apex of the third 

 cubital cell ; the third cubital cell much broader below, due to the bent 

 third transverse cubitus ; the second recurrent nervure received near the 

 base of the third cubital cell. Sheath straight above, rounded below. 

 Black ; pronotum, tegulse, a longitudinal oval spot on the abdomen above 

 and beneath at the base luteous. Legs black ; the four anterior knees, 

 all the tibiae and the tarsi whitish ; the tarsi are more or less infuscated. 

 Wings hyaline, slightly dusky, iridescent ; veins and stigma black. 



Male : Length, 4 mm. The male differs from the female in having 

 the pronotum largely pale, the pale of the legs more luteous, the posterior 

 tibiae brown (not whitish), and the luteous spot of the abdomen is larger. 

 The hypopygidium is rounded at the apex. 



Type locality : Mountains near Claremont, California. One female 

 and two males collected by C. F. Baker. 



A very distinct species, easily recognized by the oval luteous spot on 

 the abdomen. The marking of the abdomen is much the same as in 

 Lycoata lenis, Cress., and Epitaxonus multicolor, Nort., male. 



