XV, 2 
Crawford: Jumping Plant Lice 
147 
the head and abdomen including the genitalia are mutilated 
beyond recognition of characters. The venation is very similar 
but not quite identical. In the Indian species the medial vein 
forks just about midway between the cubitus and radius, while 
in the Pacific form the furcation of the media is nearer to the 
radius. It is possible that an unmutilated specimen would show 
other differences of specific value. 
Tenimber Islands, Larat (Muir), 1 specimen of somewhat 
doubtful identity, tentatively included here. 
Genus LEPTYNOPTERA novum 
Head deflexed, rather short, vertex broader than long, an- 
terior angles typically produced over base of antennae; gense 
scarcely produced into cones; frons not covered by genas. An- 
tennae rather short, second segment not barrel-shaped but pro- 
duced distally on lower side. Thorax well arched. Legs long. 
Forewings membranous, broad distad, cubital petiole and first 
marginal cell both wanting, the cubitus reaching margin un- 
forked. Hind wings nearly wanting, exceedingly short. 
Type of the genus, Leptynoptera sulfurea sp. nov. 
The position of this genus is a little doubtful, since it bears 
similarities to both Trioza and Pauropsylla. The shape of head, 
exposure of frons, shape of forewing, and some venational char- 
acters indicate a closer relationship to Pauropsylla than to 
Trioza. The absence of cubital petiole appears to be not ex- 
clusively a character of Triozinae, as several unmistakable 
examples indicate. The unforked cubitus is a characteristic 
approached more or less closely by several species of Paur- 
opsylla, suggesting that that vein of the forewing is subject to 
considerable variation. On the other hand, the same vein in 
Triozinss appears to be more constant than many other char- 
acters of the body. The aborted hind wings are characteristic 
not only of this genus but also of a few species of Trioza, and 
to a lesser degree of species of Pauropsylla and several other 
specialized genera. There appears to be a more or less wide 
tendency in the entire family toward reduction of the hind wings 
in function, strength, and size. 
Leptynoptera sulfurea sp. nov. Plate I, figs. 5 and 6. 
Length of body, 1.7 millimeters; forewing, 2.6. General color 
bright sulphur yellow, with four narrow, inconspicuous, brown 
stripes on mesonotum ; abdominal tergites with white transverse 
bands; eyes pale whitish; legs pale, femora whitish; antennal 
segments 1 and 2 yellow, remainder whitish with three black 
