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PROCEEDINGS OF THE NATIONAL MUSEUM 



VOL. 67 



of the sixth segment is one-sixth the length of the third. The hairs on the 

 third segment reach almost two-thirds the diameter of the proximal part of 

 the segment. Secondar}^ sensoria are found not only on the third and fifth 

 segments, but also on the fourth. The cornicles reach one-fourth the length of 

 the body, they- widen toward the base; from this point to one-fourth from the 

 base they become narrow, then to one-third from the end they widen; from this 

 point to the flange they become narrow again. The head, prothorax, and 

 tubercles of thorax are dark or tawny; the antennae, with the exception of the base 

 of the third segment, and the cornicles are tawny. On the upper part of the 

 abdomen there is on some specimens a median dark stripe (of spots) and on seg- 

 ments 2-5 there are marginal dark disks. 



Measurements of one specimen 2.12-0.68: Frontal furrow, 0.07; between the 

 bases of the antennae, 0.20; mouth of furrow, 0.13; width at the middle of its depth 

 0.11; at base 0.08; frontal vertex projection, 0.007. Antennae, 4.27, with the 

 following measurements of individual segments: 0.12, 0.08, 1.14 (1.13), 0.83 

 (0.82), 0.69, 0.18 + 1.23. Hairs on the third segment, 0.017-0.029; diameter of 

 proximal part of segment, 0.047. Sensoria on the third segment placed thickly 

 over its entire length; on the fourth segment there are 3 (8) sensoria; on the 

 fifth 15 (14) in addition to the permanent one. The cornicles are 0.55; their 

 thickness, 0.066 (base), 0.042 (0.12 from base), 0.066 (0.17 from end), 0.042 

 (0.013 from end), 0.040 (in front of flange), 0.062 (flange). Cauda, 0.16 (length), 

 0.12 (base), 0.08 (0.09 from tip) ; on each side are five hairs. The posterior femur, 

 1.14; tibia, 2.28; tarsi, 0.14 (0.04, 0.11); claws, 0.043. 



Distribution. — These aphids are so far known from the environs of the city of 

 Uralsk. Apparently it is distributed over Siberia, at least Western Siberia. 

 Unfortunately there is no material at present from various parts of Siberia. On 

 the lower part of the river Amur occurs Ac. rubi amurense. 



Life habits. — During the first part of September in the vicinitj' of Uralsk there 

 were collected wingless females, a young oviparous female (in the fourth stage of 

 development), a winged male and a nymph of a male. In general the life history 

 must be identical with that of Ac. rubi rubi. 



SPECIES NOT PLACED 



Following are descriptions of two alate males, which I have not 

 placed specifically. 



Pergande No. 5591 



Antennae about twice as long as body, dark colored, very tuber- 

 culate; hairs small, much shorter than width of segment. Antenna] 

 tubercles very small. Small prothoracic tubercles showing. Abdo- 

 men with lateral dark patches. Cornicles of uniform color, long, 

 plainly swollen, faintly imbricated at tip. Cauda constricted, one 

 dorsal and three lateral hairs present. 



