500 Pomona College Journal of Entomology 



less conspicuous. In the variety as well as in the species there is a variation in 

 the lengtli of the female genital segment, sometimes being very long and occa- 

 sionally rather short relatively, but always it is nearly or fully as long as rest of 

 abdomen. 



Described from one female collected at Banner, Wyoming, by C. W. IMetz, and 

 several from Pagosa Springs, Colorado (C. F. Baker). 



Aphalara pulchella n. sp. 

 (Figure 158, G, T; 159, N; 160, H) 



Length of body 2.0 mm.; length of forewing 2.6 mm.; greatest width 1.2 mm.; 

 length of vertex .29 mm. ; width between eyes A6 mm. ; with eyes .72 mm. General 

 color black to glossy jet, occasionally brown. 



Head not deflexcd, with eyes not as broad as thorax, very deeply and conspicu- 

 ously sculptured rugosely; profile .short. Occipital margin arcuate, slightly ele- 

 vated in center; postocellar regions quite elevated; discal areas with a foveal im- 

 pression posteriorly ; anterior margin quite deeply emarginate or excised at median 

 suture and less so over antennal insertions. Facial cones wanting. Genae swollen. 

 Labrum rather small, subglobose, slightly pubescent. Antennal bases not swollen. 

 Eyes prominent. Anterior ocellus scarcely stalked, very slightly visible from 

 above. Antennae short. 



Thorax broad, arched, very conspicuously and coarsely sculptured rugosely, 

 more so than on head. Pronotum moderately long, attaining laterad to central 

 axis of eye ; pleurites short, depressed ; pleural suture erect, arcuate ; f orecoxfe 

 mostly concealed. Dorsulum about twice as long as pronotum, areuately rounded 

 on both margins, without posterior epiphyses. Wings relatively rather large, at- 

 tenuate basallj', maculate more or less over entire surface, especially in distal 

 half; scarcely more than twice as long as broad, broadest across tip of second f ur- 

 eal, very broadh' rounded at apex ; apex at or near tip of fourth furcal ; first mar- 

 ginal cell more than half as long as radial cell; second marginal cell large; cubital 

 petiole scarcely as long as discoidal subcosta ; pterostigma almost wanting. 



Male — Abdomen slender. Genital plate long; profile slender; dorsal margin 

 straight, claspcrs large, clavate-spatulate, attenuate at base; anal valve large; 

 posterior lobe very long, tapering as long as genital jilate ; axial epiphysis quite 

 large, obtusely rounded ; pubescence sparse. 



Female- — Abdomen stout, short. Genital segment very long, much longer than 

 rest of abdomen, slender, acute; dorsal plate longer and less acute than ventral 

 genital pore relatively short, with a short fringe of hairs on inferior edge of dorsal 

 plate over ovijiositor; pubescence sparse. 



Described from one male and several females collietcd in Claremoiit. California, 

 and San jMateo county, California, by C. F. Baker. 



Aphalara minutissima n. sp. 

 (Figure 158, I, U; 159, I; 150, P) 

 Length of body l.t mm.; length of forewing 2.1 mm.; greatest width .8 nun.; 

 width of vertex between eyes .30 mm.; with eyes .70 nun. General color whitish, 

 white to greenish-white. 



