296 The Philippine Journal of Science isis 



large, stout, relatively short, hairy; femora deeply grooved for 

 reception of tibiae; fore and second tibiae with a fringe of stiff 

 spines at apex; hind tibiae with 4 very large spur-like spines at 

 apex within ; tarsi very large and long. 



Wings large, membranous, about two and a half times as long 

 as broad, acute at apex, veins large, setigerous; first marginal 

 cell very large; first cubital very short; radius touching second 

 cubital, and latter touching second f ureal; with dark bands, as 

 shown in the figure. 



Abdomen large. Male genital segment relatively small; 

 claspers short, broader at apex than at base, rather flat; apical 

 margin rather square; anal valve longer than claspers, con- 

 stricted near apex. Female genital segment about half as long 

 as rest of abdomen, subacute at apex, dorsal plate slightly longer 

 than ventral. 



Described from 2 males and 1 female collected at Los Banos, 

 P. I. (Baker, December, 1912). 



Pauropsylla triozoptera sp. nov. (Plate I, figs. B, C, J, N.) 



Length of body, 2.5 mm. ; length of forewing, 3.6 mm. ; width 

 of vertex with eyes, 0.95 mm. General color dark reddish brown, 

 vertex lighter; metapleurum, metastemum, legs, and basal half 

 of antennae yellowish brown. Body robust, surface smooth, 

 sparsely pubescent. 



Head nearly as broad as thorax, short, deeply concavely de- 

 pressed between posterior ocelli, front margin convex; vertex 

 much broader than long; frons visible from ocellus to clypeus, 

 narrow. Genal cones wanting. Eyes and ocelli large, promi- 

 nent; antennae about as long as head and thorax combined, 

 slender ; segment IX broadened at tip, bearing a long seta apically 

 without. 



Thorax very thick dorsoventrally ; mesosternum extending far 

 down and forward; pronotum much depressed below dorsulum. 

 Legs moderately long. Forewings large, membranous, hyaline, 

 rhomboidal, rather square at apex, about one and two-thirds 

 times as long as broad ; venation similar to that of congeners ex- 

 cept that the cubital petiole is wanting, as in Trioza. 



Female genital segment nearly as long as rest of abdomen, 

 deflexed, acute at apex, plates subequal in length. 



Described from 1 female from Los Baiios, P. I. (Baker) . 



Although this species differs from others of the genus Paurop- 

 sylla in one venational character which has been considered of. 

 great diagnostic importance, nevertheless I do not hesitate to in- 



