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POMONA COLLEGE JOURNAL OF ENTOMOLOGY 



GENUS TRIOZA 

 Trioza califoriiica n. sp. 



(Fig. 99, A. P., G, H, I), (Fig. 98, A). 



Length of bod}-, 2 mm. ; Icnglh of forewings 3.35 mm. General color dark 

 brown to orange ; head almost black, darker than thorax ; abdomen greenish 

 white ventrally, dorsally as dark as thorax; legs uniform reddish brown; 

 antennae brown to black, except segments II-III whitish. Head and thorax 

 finely punctate. 



Head not strongly deflexed ; with eyes, almost as broad as thorax, slightly 

 and finely punctate ; vertex posteriorly nearly straight, somewhat arcuate ; 

 discal area of frontal plates obliquely and broadly depressed, elevated along 

 median suture posteriorly and emarginate anteriorly ; frontal plates not raised 

 plate-like ; facial cones moderately large, rather acute, not strongly divergent, 

 almost vertical, quite densely hirsute. Antennae inserted beneath the slightly 

 projecting vertex, filiform, except two basal segments large, subglobose. Eyes 

 large, hemispherical ; anterior ocellus imbedded at angle of facial cones. 



Figure 98. A. Trioza californica; B, T. baKeri; C. T. rotundipennis; D. T. macuJipennis. 



Thorax arched, distinctly punctate. Pronotum depressed below dorsuluni 

 and head ; dorsulum strongly ascending posteriorly, about as long as scutum. 

 Wings hyaline, aljout two and one-half times as long as broad, broadest across 

 middle, subacute apically ; subcosta and anal angle bordered on both sides 

 with black band, giving appearance of one long-curved stripe and one shorter 

 one; radius shorter than second cubital: marginal cells (piile small; apc.x of 

 wing distinctly within second marginal cell ; venation reddish brown, except 

 subcosta. 



FemalK — Genital segment not long, scarcely twice as long as preceding 

 segment; dorsal ])late somewhat longer than ventral ])late, arched, and acute 

 at the tip; both plates hirsute. AIai.p; — Genital segment rclluxcd dorsally, large, 

 hirsute dorsally in the center. 



Described from seven males and one female, taken by C. F. l'>aker, near 

 Claremont, Calif, (mountains). Co-type in National .Museum, Washington. 



