XV, 2 
Crawford: Jumping Plant Lice 
191 
Thorax arched, broad, with scattering hairs. Legs long and 
stout; tibiae very long, hind tibiae without basal spur, four small 
spines at apex. Forewings large, broadly rounded at apex, veins 
thick and heavy, not unicolorous. Hind wings about half as 
long as forewings or more, narrow. 
Abdomen thick. Male forceps half as long as anal valve, rec- 
tangular in outline (lateral), truncate at apex, with three teeth 
on apical margin ; anal valve long, broadest at base, tapering to 
narrow apex. Female genital segment about half as long as 
rest of abdomen, dorsal valve a little longer than ventral, both 
subacute. 
Singapore {Baker) , 1 male and 2 females. 
Trioza divisa Crawford (’17 : 172). 
The description of the female genitalia, having been omitted 
in the first account of this species, is given here. Abdomen very 
short; genital segment short, but nearly as long as abdomen, 
dorsal valve a little longer than ventral, both subacute and tawny 
in color. 
Luzon, Benguet Subprovince, Baguio {Baker ) , 1 female. The 
first specimens, 2 males, were from the same locality. 
This species is very close to the Japanese Trichochermes bi- 
color Kuwayama, differing in only a few respects as indicated 
in the foregoing key. 
Trioza diptera sp. nov. Plate III, figs. 6 and 7. 
Length of body, 1.9 millimeters ; forewing, 3.1. Thorax orange 
red, abdomen reddish brown on notum and mostly white on 
venter; vertex pale brown, with three darker stripes, posterior 
ocelli red; genae white; antennae white, with three broad black 
rings; legs white or pale; wings clear. Body surface more or 
less white-pulverulent. 
Head nearly as broad as thorax, declivous; vertex nearly as 
long as broad, median suture sulcate, and a long, slightly cres- 
centic sulcus on each side; genal cones broad at base, acutely 
pointed, strongly divergent, directed forward, pubescent with 
white hairs. Antennae about one and one-half times as long as 
width of head, slender, conspicuously black and white. 
Thorax narrow, not much arched. Legs father short; hind 
tibiae without basal spur, with four black spines at apex, three 
together and one alone. Forewings long, acutely pointed, trans- 
parent, marginal cells far separated. Hind wings reduced to 
mere stubs, almost wanting. 
Abdomen long and slender. Male genital segment unusually 
