3 68 
S. MATSUMURA 
than the postrhinarial ; rostrum short, scarcely reaching to the 2nd coxae ; 
wings short, somewhat longer than the body, ist, 2nd and 3rd oblique nearly 
in parallel, stigmatic nervure obsolete in the middle, cubitus at the innerside 
of the stigma distinctly excurved, stigma short, nearly 4 timesas long as 
broad, veins on the sides and at extremities clouded ; first oblique of the hind 
wing nearly perpendicular to the cubitus, at the base being obsolete, 2nd 
oblique somewhat sloping, cubitus at the base of the 2nd oblique strongly 
incurved ; abdomen much longer than the head and thorax combined, the first 
4 segments each in the middle with one pair of long tubercles, of which the 
middle 2 being the longest ; cornicles small, nearly 3 times as long as broad, 
scarcely dilated at the base ; cornicles large, roundish ; the bilobed lower genital 
plate much shorter than the cornicles ; legs moderately long, the hind pair 
being much the longest, empodial hairs much shorter than the claws. 
Genotype— Acantkocallis quercicola Mats. 
3. Acanthocallis quercicola n. sp. (PI. XVII, f. 1, a, b, c, d.) 
Winged viviparous female — Body greenish brown, broad-fusiform; an- 
tennae much shorter than the body, fulvous, apices of the 3rd, 4th and 5th 
joints, as well as the postrhinarial infuscated, the 3rd somewhat shorter than 
the 4th and 5th taken together, with a few large sensoria in a single row, the 
4th subequal to the 5th, anterhinarial scarcely longer than the postrhinarial ; 
front with some conical tubercles, which carry on each apex a long bristle- 
like hair; rostrum not reaching to the 2nd coxae; wings subhyaline, pale 
grayish, veins fuscous, the extremities being clouded with brown, 2nd furcal 
near the middle of the first, stigma with 2 fuscous spots ; cubitus of the pos- 
terior wing at the base of the 2nd oblique strongly incurved; abdomen on the 
sides with some tubercles, from each of which producing some fine hairs, the 
first 4 dorsal segments each with 2 long wart-like tubercles in the middle; 
cornicles short, much longer than wide; cauda roundish, on each side of 
which at the base with a roundish lobe, and with long hairs; legs greenish 
yellow, the hind femur in the middle largely fuscous. 
Length of body 1.8-2.2 mm.; exp. tegm. 5 mm.; antennae 1 4 mm. 
