Matsumura : New Species and Genera of Callipterinae (Aphididae) of Japan Joq 



7. Mimocallis n. g. 

 Body covered with white woolly secretion, which being especially conspicu- 

 ous on the legs. Antennae nearly as broad as the anterior tibiae, longer than the 

 wing, the first joint large, nearly twice as long as the 2nd, the 3rd somewhat longer 

 than the 4th, near the basal 1/3 with one or 2 rows of a few oblong sensoria, the 

 4th distinctly longer than the 5th, the 6th short, nearly | length of the 5th, aii- 

 terhinarial somewhat shorter than the postrhinarial. Ocelli roundish. Rostrum 

 reaches to the middle coxae. Prothorax much longer than the head. Primaries 

 ongj stigma long-lanceolate, which being at the base of the stigmatic vein angu- 

 lated, the latter broadly curved, all the obliques obsolete at the bases, the 2nd ob- 

 lique at the base much nearer to the first than the 3rd (media), first furcal very 

 long, longer than the first oblique, 2nd furcal distinctly nearer to the tip than 

 the base of the first ; all the veins at each apex with a fuscous spot ; secondaries 

 with 2 long obliques. Abdomen much longer than the head and thorax taken 

 together. Cornicles distinctly longer than broad, at the mouth- part somewhat 

 enlarged, cauda rounded. Legs long, femora quite thickened ; empodial hairs 

 very large, longer than the claw\s, oblong, at the apices broadly conical. 

 Genotype — Mimocallis betuli japonicae Mats. 



10. Mimocallis betuli japonicae n. sp. 



Winged viviparous female — Body greenish yellow. Antennae nearly twice as 

 long as the body, yellowish, apices of the 2nd and 4th, as well as the 5th and 6th, 

 fuscous, the 3rd joint with about 20-24 oblong sensoria of different sizes, ante- 

 rhinarial much slenderer than the postrhinarial ; all the joints with very fine rigid 

 hairs. Rostrum at the extreme apex fuscous. IMesonotum with 2 oblong brown- 

 ish spots, placed longitudinally, mesosternum fuscous. Wings hyaline, veins and 

 stigma fulvous, all tiu veins at each apex with a fuscous spot. Cornicles and 

 cauda concolorous with the body ; near the anus with a fuscous transverse line. 

 Legs concolorous with the body, apices of the femora, both ends of the tibiae, 

 and the tarsi, fuscous. 



Length — 2.y mm.; antennae 5 mm.; exp. tegm. i [ mm. 



Hab. — Hokkaido (Sapporo) ; many sjiecimens collected by the author, 



F. P. — Betnla japonica (Kaba). 



Date of Coll. — Aug. 14, 191S. 



