86 



sorium at the apex, the 3rd the longest, the 6th subequal to the 4th 

 and 5th taken together, the 5th subequal to the first, at the apex with 

 one round sensorium, anter hinarial 1/4 the length and 1/2 the breadth 

 of the postrhinarial, rhinarium roundish; eyes fuscous, on each inner 

 side with a browish spot; wing-sheath reaching to the first abdominal 

 segment; abdomen brownish sppotted; legs dark fulvous, at the joints 

 somewhat infuscated. 



Length of body 2.0 mm.; antennee 0,3 mm. 

 Larva - Nearly the same as the nymph, only differs from it in having 

 no wing-sheath, and having the globular 5th antennal joint. 



Hab. - Hokkaido (Sapporo). 



F. P. - Populus balsamifera. 



Nom. Jap. - Doro-hafushi. 

 Gall - Made on the upper surface of the leaf along the midrib; long 

 in form, vermiform, with many wart-like protuberances on the dorsal 

 ridge, somewhat like that of the sea-urchins, on the lateral sides some- 

 what wrinkled, under surface of the leaves being closed, the larger one 

 measuring about 42 mm. 



This gall was collected by Prof. Y. Niisima at Sapporo. Being 

 somewhat young, it contains no alated female, nor any exit, from which 

 the winged insect escapes. 



6. Gen Prociphilus Koch, 1857. 

 (Aphid. P. 279) 

 Holzneria Lichtenstein, 1875. 

 Vertex with 2 large oval waxyland's plantes; antennae long, nearly 

 reaching to the middle of the abdomen, the 3rd joint longest, some- 

 what shorter than the following 3 taken together, all the joints with 



