A LIST OF THE APHIDTDAE OF JAPAN", WITH DESCRIPTION 379 
shorter than the body, the 3rd joint on the outerside with about 7, the 4th 
with 4, the 5th with 5 tuberculous sensoria, all nearly in a single row, anter- 
hinarial nearly 1/4 the length of the posti hinarial ; vertex at the hind margin 
with 2 small dimples; thorax highly bulged, sutures being quite deep; fore 
wings hyaline, with a light fulvous tinge, stigma and a spot below it at the 
base black, veins very fine, pale fulvous, at the base of the stigmatic nervure 
with a fuscous cloud ; hind wings hyaline, only the cubitus at the basal half 
fulvous; abdomen roundish, with large, short cornicles, cauda indistinct ; legs 
black, femora at the bases brownish. 
Length of body 1.6 mm.; exp. tegm. 8.5 mm.; antennae 1.6 mm. 
Hab, — Honshu (Iwate). 
F. P. — Quercus sp.? ; collected by Mr. Teizo Ogasawara in July. 1903. 
Norn. Jap. — Ogasaivara-oabitra. 
15. Lachnus longipennis n. sp. 
Winged viviparous female — Body fuscous, with fine pale yellowish hairs; 
antennae fuscous, bases of the 3rd and the following joints yellowish, the 3rd 
joint much longer than the following 2 taken together, the 6th subequal to 
the 5th, anterhinarial short, with 3 short hairs, the 4th somewhat shorter than 
the 5th, the 3rd with 14, the 4th with 2 and the 5th with 3 large tuberculous 
sensoria; rostrum long, reaching to the middle of the abdomen ; pronotum 
dark brown, mesonotum fuscous; wings very long, nearly 3 times as long as 
the body, hyaline, costa, cubitus and stigma black, the stigma being very 
long, veins pale fulvous, and very slender; abdomen oblong, with series of 
whitish tubercles on a central line; cornicles conical, with broad bases, cauda 
short, roundish; legs long, especially on the hind ones, the basal one third 
being yellowish brown. 
Length of body 6 mm.; exp. tegm. 21-22 mm.; antennae 2.1 mm. 
Pupa — Pale yellowish brown, scattered with fuscous spots; antennae short, 
apices of 3rd, 4th, 5th and 6th infuscated, on the innerside with some long 
hairs; rostrum reaching to the 3rd ventral segment; wing-sheath reaching to 
