78 BULLETIN 85, UNITED STATES NATIONAL MUSEUM. 



white fir (Ahies sp.), and a species of spruce (these latter were 

 described as T. montana Crawford); seven specimens from Placer 

 and Nevada Counties, California (Koebele), September. The latter 

 specimens bear the manuscript name of Trioza puherula Riley. 

 Type in author's collection. 



TRIOZA BREVIANTENNATA, new species. 



Figs. 394, 396, 422. 



Very sunilar in size and general proportions to T. hakeri; wings 

 relatively a little shorter. General color light to dark brown, often 

 very dark; legs and antennae lighter, except latter black at tip; in 

 light forms the vertex is dark brown to black. Vertex and dorsum 

 not pubescent as in hakeri, but very coarsely punctate. 



Similar in many respects to hakeri, but vertex very conspicuously 

 bulging on each side of median line; genal cones relatively shorter; 

 antennae a little shorter, scarcely as long as width of head. Thorax 

 as in hakeri, but not pubescent. Hind tibiae with three apical spines 

 within. Wings large, resembling hakeri. 



Oenitalia. — Male. — Anal valve as in hakeri, but base of triangle 

 shorter; forceps similar, subacute at apex, sides almost parallel. 

 Female. — Genital segment similar, but dorsal valve a little longer 

 than ventral. 



Described from two males and one female from Claremont, Cali- 

 fornia (mountains), collected by C. F. Baker, no data with them. 



Type in author's collection. 



TRIOZA DIOSPYRI Ashmead. 



Figs. 179, 356, 360, 519. 



Psylla diospyri Ashmead '81: 222. 



Trioza diospyri Riley '83: 70.— Crawford '10b: 352.— Patch '12b: 226. 



Trioza latipennis Crawford '10a: 230. 



Lengthof body 2.5 mm; length of forewing 4.4; width of head 0.79. 

 General color shining black; middle and hind tibiae and all tarsi 

 whitish; pubescence long and sparse, conspicuous. 



Head nearly as broad as thorax; vertex more than half as long as 

 broad, emarginate in front at median line, with a broad shallow 

 depression on each side discally; genal cones about half as long as 

 vertex, subhorizontal, not strongly divergent, broadly rounded at 

 apex, very densely hirsute. Antennae about one and a third to one 

 and a half times width of head, whitish except black at tip, clothed 

 very sparsely with long hairs. 



Thorax rather strongly arched, smooth and shining; pronotum 

 short, much depressed below head and praescutum; latter narrowly 

 rounded cephalad. Legs rather long, thickly pubescent; anterior 

 metacoxal spur unusually long; hind tibiae with three apical spines 



