X. D. 4 Crmvford: Ceylonese and Philippine Psyllidse 265 



valve short, rather broad, hairy. Female genital segment long, 

 as long as rest of abdomen, dorsal valve tapering to a slender 

 apex, both acute. 



Described from one male and one female from Butuan, Min- 

 danao, P. I. {Baker) . 



Genus NEOTRIOZELLA Crawford 



This small genus is characterized by the very peculiar genal 

 cones, which are not in the least divergent. They extend either 

 down almost vertically from the head or more nearly horizontally. 

 The body is typically slender, and the legs are small and delicate. 

 The venation is triozine, lacking the cubital petiole. 



Neotriozella bicolor sp. nov. Plate I, fig. h. 



Length of body, 1.8 millimeters ; length of forewing, 3.1 ; width, 

 0.9; width of head, 0.35. General color reddish to chocolate 

 brown on dorsal half and yellow on ventral half, including venter 

 of both head and thorax and abdomen, legs, antennse except tip, 

 and lower portion of wings (when folded). 



Head not as broad as thorax ; eyes large ; vertex a little longer 

 than breadth between eyes, slightly convex; genal cones longer 

 than vertex, extending in same plane, slender, tapering slightly 

 to a blunt point, yellowish beneath; antennse scarcely twice as 

 long as cones, slender. 



Thorax a little arched, dorsal surface reticulated; pronotum 

 scarcely visible between vertex and mesonotum ; legs short, small, 

 apparently weak; wings long, slender, acute, subhyaline, with a 

 dark band extending from basal attachment to apex; cells elon- 

 gate ; abdomen long, rather slender ; female genital segment short, 

 about half as long as rest of abdomen ; valves about equal in 

 length, thick at base, subacutely pointed. 



Described from one female from Los Banos, Luzon, P. I. 

 {Baker) . 



Genus TRIOZA Foerster 



For a description and discussion of this old and large genus 

 see Crawford.^ In the collections before me there are 6 Philip- 

 pine species. Some of these, however, are not sufficiently repre- 

 sented to be included in these descriptions. 



Trioza eugenias sp. nov. Plate I, fig. e. 



Length of body, 2 millimeters ; length of forewing, 5.2 ; width, 

 1.7 ; width of head, 0.7. General color greenish yellow; abdomen 

 bright green, wings shining (field notes by Rutherford). 



'Bull. U. S. Nat. Mus. (1914), No. 85, 74. 



