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S. MATSUMURA 
30 transverse sensoria in a single row, some of which being reduced to a 
roundish spot, subequal to the 4th and 5th taken together, anterhinarial dis- 
tinctly shorter than the postrhinarial and much narrower ; compound eyes 
reddish brown ; rostrum scarcely reaching to the 2nd coxae ; wings hyaline, 
with a slight yellowish tinge, veins and stigma pale fulvous, 2nd furcal nearly 
in the middle of the first, stigmatic nervure strongly curved near the base, 
at the end of each vein somewhat infuscated ; abdomen above with 3 rows of 
fuscous spots, of which the middle spots being mostly oblong in shape ; cor- 
nicles very short, tubercular; Cauda none, genital segment rounded and with 
long hairs on the hind margin; legs dark green, femora at the bases and 
tibiae, except both ends, paler. 
Length of body 2.5 mm.; exp. tegm. 6,2 mm.; antennae 2.6 mm. 
Apterous viviparous female — Nearly allied to the winged viviparous fe- 
male ; the body fusiform ; antennae greenish yellow, apices of the 3rd, 4th, 
5th and postrhinarial being fuscous; rostrum nearly reaching to the 3rd 
coxae ; fuscous spots of the abdomen less distinct. 
Length of body 2.4 mm.; antennae 2.3 mm. 
Hab. — Hokkaido (Sapporo). 
F. P. — Betula japonica. 
Nom. Jap. — Kaba-buchi-abura. 
It has no resemblance to the European Myzocallis betularius Kalt. 
5. Yezocallis alniaria n. sp. 
Winged viviparous female — Body oblong, fuscous brown ; antennae shorter 
than the body, with long hairs, fuscous, the first 2 joints and the bases of the 
3rd paler, the 3rd with numerous oblong sensoria in two or three rows, 
subequal to the 4th and 5th taken together, the 4th a little longer than the 
5th, anterhinarial very narrow and much shorter than the postrhinarial, at the 
extreme apex being paler; rostrum not reaching to the 2nd coxae; wings 
hyaline, with a slight fulvous tinge, stigma grayish brown, veins fulvous, 
2nd furcal near the middle of the first ; abdomen with 3 longitudinal rows of 
