8S BULLETIN 85, UNITED STATES NATIONAL MUSEUM. 



Described from several males and females from Claremont, Cali- 

 fornia (Baker) ; Santa Clara County, California (Baker) ; Santa Cruz, 

 California (Koebele), August 15, 1885; Los Angeles, California 

 (Coquillett) ; Argus Mountains, California (Koebele). 



Type in author's collection. 



TRIOZA LONGISTYLUS Crawford. 



Figs. 201, 338, 528. 



Trioza longistylus Crawford '10a:233; '11a: 434.— Patch '12b:227. 



This is very similar to coTlaris, differing only in a few minor details. 

 Genal cones bluntly rounded at apex, instead of acute as in coUaris; 

 clypeus larger; praescutum more broadly rounded cephalad. Female 

 genital segment about midway in relative length between collaris 

 and proximata; styliform prolongation relatively longer than in 

 collaris. 



Described from two females from Colorado (Baker) , no data. 



Type.— Csit. No. 18083, U. S. NatMus. 



Miss Patch ('12b: 227) assigns to this species several specimens from 

 northern and central California, but these, I believe, belong to the 

 species collaris. The two are distinguished with difficulty and it is 

 possible that they are both one species. Until further evidence is 

 available to prove this, however, I will not merge the two species 

 into one. 



TRIOZA QUADRIPUNCTATA Crawford. 



Figs. 209, 336, 366, 527. 



Trioza quadripunctata Crawford '10a: 233; '11a: 433.— Patch '12b:229. 



Length of body about 2.2 mm; length of forewing 2.5 to 3.3; 

 width of head 0.71. General color greenish yellow to dark brown, 

 hibernating forms darker; antennae white on basal two-fifths, the 

 rest dark; tibise at tip and tarsi brown or black; forewings with four 

 brown or black spots on hind margin. 



Head much narrower than thorax; vertex very conspicuously 

 bulging in front, little more than half as long as broad, with a foveal 

 impression posteriorly on each side of median line accentuating 

 anterior bulging; genal cones about two- thirds as long as vertex, 

 acute, divergent, subvertical, only slightly pubescent. Antennae 

 about twice as long as width of head. 



Thorax strongly arched, coarsely punctate; pronotum moderately 

 long, much depressed below praescutum. Legs long; hind tibiae 

 with three apical spines within. Wings large, only a httle more than 

 twice as long as broad, costal margin more arcuate than usual, apex 

 rounded but not broadly so; Rs usually short, straight; with a black 

 spot at tip of clavus, one between branches of cubitus, one between 

 cubitus and media, and a fourth between branches of media; spots 

 sometimes not conspicuous. 



