Pomona College Journal op Entomology 501 



Head not deflexed, with eyes fully as broad as thorax, rather small, punctate. 

 Oceijiital margin arcuate somewhat, not elevated narrowly; vertex disoally quite 

 plane, with a slight im2)ression in center, and raised somewhat on postoccllar re- 

 gions ; anterior margin not very deeplj' emarginate at median suture, slightly emar- 

 ginatc over antennal insertions. Facial cones entirely wanting; antcnnal bases 

 not swollen. Gena? not prominent; eyes small; ocelli small; anterior ocellus scarcely 

 stalked, not visible from above. Antennae short, slender. Labrum relatively 

 rather large, subglobose, pubescent; rostrum short. 



Thorax arelied, <juitc broad, coarsely i)unctate. Pronotum long, about half as 

 long as dorsulum, fiat on dorsal surface ; pleurites short, depressed ; pleural suture 

 erect, shorter than episternum, forecoxie rather large. Dorsulum short, broad; 

 scutum nuich longer than dorsulum. JVings small, not hyaline, subcoriaceous, cor- 

 rugated, whitish; about two and a half times as long as broad, broadest across first 

 marginal cell, quite broadly rounded at apex; first marginal cell long, more than 

 half the length of radial margin; second marginal cell short, triangular; radius 

 long, curved apically ; pterostigma wanting, cubital petiole slightly shorter than 

 discoidal subcosta. 



Male — Abdomen short. Genital segment relatively large ; claspers short, very 

 broad and heavy, subspatulate at apex ; anal valve very large ; posterior lobe long 

 and slender, longer than genital plate; inferior process small; axial epiphysis 

 quite j)rominent. 



Female — Abdomen stout. Genital segment long, stout, subacute at apex; dor- 

 sal plate slightljf longer than ventral, serrated on inferior margin caudad. 



Described from many males and females collected in Ormsby county, Nevada, 

 by C. F. Baker. This species may be known in some collections by the manuscript 

 name of Aph. occidentalis. 



Aphalara picta Zetterstedt 



(Figure 158, M, R; 159, O; 160, O) 



(Sj'n. Aph. flavipennis Forst., Apli. nervosa Thorns, [nee Forst.]) 



{Psylla alpigena M. D., Psylla sonchi Forst.) 



Length of body 3.3 mm.; length of forewing 4.2 mm. or less; greatest width 2.0 

 mm. or less; width of vertex between eyes .64 mm.; with eyes 1.16 mm. General 

 color light yellowish brown to brown. Notum often more or less conspicuously 

 striped longitudinally; abdomen darker; wings flavous. Body very large and stout. 



Head scarcely deflexed, large, vertex continuing plane of dorsum ; profile tri- 

 angular; with eyes not as broad as thorax, punctate. Vertex flat, almost plane, 

 with a small fovea in rear center on each side of median suture; occipital margin 

 arcuate, not elevated ; postocellar areas scarcely elevated ; anterior margin emargi- 

 nate at median suture, and vcrj' sliglitly so over insertion of antenna?. Facial 

 cones entirely wanting; genae not swollen. Labrum very small, posterior, subglo- 

 bose; rostrum short. Eyes relatively very large, covering most of side of head; an- 

 terior ocellus under vertex, slightly stalked, not visible from above. Antennae short, 

 filiform, inserted beneath vertex, latcrad. 



