184 
Philippine Journal of Science 
1819 
antennas 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 setae ; pterostigma short and broad. 
Abdomen thick. Male forceps not quite as long as anal valve, 
broadly spatuiate 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. 
TRIOZINAE 
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- 
phalara 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 genas (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 Triozinee 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 metacoxse. 
b 1 . Forewings with three marginal spots, made up of numerous minute 
punctations, on hind margin. 
c 1 . Genal cones present, but not always conical. 
d 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 Lenronota Crawford. 
e 2 . Notum well arched; pronotum short; genal cones more or less 
declivous. 
