AMERICAN TRIOZIN/E 1 237 



Trioza iiiaciilipcniii.s n. sp. 



(Fig. 99, F, O, P), (Fig. 98. D). 



Length of body 1.7 mm. ; length of forewings 2.85 mm. General color 

 reddish brown to dark brown (jr ijlack : head fulvoius brown ; thorax darker, 

 somewhat mottled ; abdomen almost black ; intermediate antcnnal segments 

 tipped with black, terminal segment black, tlie rest yellowish brown. 



Head somewhat defle.xed ; with eyes, almost as broad as thorax ; frontal 

 plates raised plate-like, large, broadly depressed obliquely, sligluly elevated 

 along median suture, scarcely emarginate anteriorly, quite pubescent ; facial 

 cones fulvous, short, subacute, strongly divergent, almost horizontal and 

 sparsely hirsute. Eyes large, hemispherical. Antennae fully twice as long 

 "as width of head, filiform, except two basal segments; third segment very long. 



Thorax not strongly arched, coarsely punctate. Pronotum depressed be- 

 low dorsulum and head, rather light colored ; dorsulum pubescent, acute ante- 

 riorly, strongly ascending on anterior half, posteriorly, and the rest of thorax 

 not very strongly arched ; scutum very slightly pubescent anteriorly. Wings 

 angulated and acute apically, about two and two-thirds times as long as broad, 

 broadest subapically ; semihyaline, not fully transparent, with several brown 

 maculae in apical half covering both marginal cells and part of cubital and 

 radial cells ; first marginal cell much larger than second ; radius straight, 

 shorter than second cubital ; venation yellowish brown. 



Male — Abdomen quite long and stout. Genital segment as long as two 

 preceding segments, rounded apically and not reflexed ; genital plates small, 

 slightly flexed anteriorly ; penis exserted toward claspers ; claspers large, bi- 

 lobed, laterally opposed. Genital segment and plates very densely pubescent. 



Described from two males, taken by C. F. Baker in San Mateo County, 

 California. 



