AMERICAN TRIOZIN/E 1 



235 



Trioza baker i a. sp. 



(Fig. 99, C, D/J, K, L), (Fig. 98, B). 

 Length of body about 2.2 mm. ; length of forewing.s 3.5 mm. General 

 color brown with fiilvus ; head brown, except frontal plates fulvous yellow ; 

 dorsulum posteriorly, median dorsal portion of scutum, and scutellum ful- 

 vous ; rest of thorax brown ; abdomen whitish ventrally, black dorsally ; an- 

 tennae yellow, except terminal segment black. 



M 



Figure 99. A, B, G, H, I, T. californica; E. M. N, T. rotundipennis; F, O, P. T. maculipennis j 



C, D, J, K, L. T. baKeri. 



Head not deflexed, but continuing uniformly the descending arch of 

 thorax and head, almost as broad as thorax ; frontal plates large, flat, pubes- 

 cent, distinctly raised plate-like, with a small, deep fovea posteriorly on each 

 side of median suture ; facial cones black, subhorizontal, projecting forward 

 beyond frontal plates, acute, quite strongly divergent, and moderately hirsute. 

 Eyes not hemispherical, somewhat flattened. Antennae twice as long as width 

 of head, inserted near base of cones, without ; two basal segments larger, sub- 

 globose, the rest filiform, terminal segment slightly clavate. 



Thorax arched, rather coarsely punctate and finely pubescent or pulveru- 

 lent. I'ronotum large, broad, somewhat arched; pubescence almost as long 



