Ig4 Philippine Journal of Science u« 



antenna a little more than twice as long as width of head, 

 slender. Eyes larger, somewhat recessive. 



Thorax arched, broad, robust. Legs rather short, stout; hind 

 tibiae with a small spur at base. Forewings short, browned but 

 hyaline, veins with short setse ; pterostigma short and broad. 



Abdomen thick. Male forceps not quite as long as anal valve, 

 broadly spatulate in apical half, broad at apex and part of apical 

 margin finely toothed ; anal valve simple, broadest at base, nar- 

 rowing to subacute apex. Female genital segment nearly as 

 long as abdomen, dorsal valve longer than ventral and both 

 acutely pointed. 



Tenimber Islands, Larat, December, 1907 (Muir), 10 females. 

 Moluccas, Amboina (Muir), 2 males and 1 female. 



This species approaches Arytaina in some respects, as in the 

 character of genal cones and shape of forewing. 



TRIOZIN^E 



The most easily visible, though not the most constant, char- 

 acter of this subfamily is the point of furcation of the basal 

 vein of the forewing — the cubitus, media, and radius leaving the 

 basal vein at quite or nearly the same point. Ceropsylla and 

 Hemitrioza, both American genera, are exceptions to this. On 

 the other hand, several species belonging to other subfamilies, 

 possess this characteristic, as follows: Rhinopsylla, and Tena- 

 pkalara triozipennis, of the subfamily Carsidarinse ; and Paur- 

 opsylla triozoptera and Leptynoptera, of the subfamily Paur- 

 opsyllinse. However, the exceptions are comparatively few, and 

 this character remains the best for subfamily distinction. 



The body is typically slender, eyes hemispheric, frons covered 

 by the gense (except in Cerotrioza bivittata) ; basal tarsus of 

 hind legs always lacks the clawlike spines which are present in 

 most of the other subfamilies. A full description of the sub- 

 family Triozinae is given in my monograph, page 64. 



Key to the genera. 



a 1 . Hind tibiae without basal spur and without subapical spiniform tooth; 

 no anterior processes of metacoxas. 

 o 1 . Forewings with three marginal spots, made up of numerous minute 

 punctations, on hind margin. 

 c 1 . Genal cones present, but not always conical. 



tf 1 . Genal cones more or less divergent, not closely appressed to each 

 other. 

 e 1 . Notum scarcely arched; pronotum relatively long; genal cones 



directed forward Leuronota Crawford. 



e*. Notum well arched; pronotum short; genal cones more or less 

 declivous. 



