54 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 67 



prove to be the same as other specimens which I had already described 

 in manuscript as davidsoni, new species. Swain did have specimens 

 of ruhi Kaltenbach from other sources, but did not describe them. 



Mordvilko under ruhi Kaltenbach considers four subspecies. One 

 of these is the typical rubi Kaltenbach. Another is fragarieUum 

 Theobald which I believe to be the same as rubi Kaltenbach. The 

 other two subspecies are apparently distinct and I have elevated 

 them to the rank of species. These are discussed under the indi- 

 vidual species. I give herewith a translation of Mordvilko's key for 

 the separation of his four subspecies. 



1. (6) The third segment of the antennae exceeds the fourth only slightly, for 

 instance, one and one-third to one-seventh times; the unguis of the sixth segment 

 almost equals the third segment (in wingless females somewhat shorter and in 

 winged, somewhat though very little longer). 



2. (5) The base of the sixth segment of the antennae consists of one-seventh 

 to one-sixth the length of the third segment, reaching 0.17-0.19 and almost 0.20 

 mm., but at times (in the case of long antennae) 0.22. 



3. (4) The cornicles even in the wingless females are dark, in front of the 

 flange they are usually very slightly but nevertheless noticeably swollen; they 

 reach one-fourth to two-ninths the length of the body (in wingless females); 

 Cauda with 3-4 bristly lateral hairs Ac. rubi amurense, new subspecies. 



4. (3) Cornicles in wingless females light colored; in front of the flange there 

 is hardly any swelling noticeable; the cornicles reach two-sevenths to one-third 

 the length of the body; on the sides of the cauda are 5-6 bristly 

 hairs Ac. rubi rubi (Kaltenbach) . 



5 (2) The base of the sixth segment of the antennae consists of one-fifth the 

 length of the third, reaching 0.22 mm Ac. rubi fragarieUum (Theobald). 



6. (1) The third segment of the antenna exceeds the fourth distinctly, for 

 instance, one and two-fifths to one and one-half times and the unguis of the sixth 

 segment, even in the wingless females exceeds the third segment distinctly, for 

 instance, one and two-fifths to one and one-half times and the unguis, even in 

 wingless females exceeds the third segment distinctly, for instance, one and two- 

 ninths times; the base of the sixth segment consists of about one-fifth the length 

 of the third reaching 0.17-0.18 mm Ac. rubi zhuravlevi, new subspecies. 



Alate viviparous female. — ^Large species. General color green. 

 Antennae longer than the body, rather slender, dark colored, hairs 

 nearly as long as width of segment, capitate, more conspicuously so 

 in some specimens, III with 30-50 sensoria over the entire length, 

 not strongly tuberculate. Antennal tubercles very large. Beak 

 reaching second coxae. Prothoracic tubercles large. Cornicles very 

 long, moderately swollen, the tips imbricated but not reticulated. 

 Cauda long, broad, conical, not constricted, with 4-6 sets of lateral 

 hairs. Measurements as follows : 



