210 THE CANADIAN ENTOMOLOGIST 



with a brown tinge on the propleura and anterior portions of the 

 nicsopleura. Halteres rather long, pale. Legs: coxa- and troch- 

 anters light yellow; femora orange-yellow the tip brown; tibiae 

 yellowish on the basal half, thence passing into brown; 

 tarsi brown. Wings with a dark brown costal border, this in- 

 cluding cells C, Sc, and the cephalic halves of cells R and 1st Ri; 

 stigma even darker; most of cells R and M and the bases of cells 

 Rs, Rs and Rr. hyaline; remainder of the wings with a brownish- 

 gray tinge. Venation as in plate 16, figure 3. 



Abdominal tergites yellow with a broad brown stripe on each 

 side, these stripes becoming confluent on segments 7 and 8; caudal 

 margin of segments 3-G narrowly brown; stcrnites dull yellow, the 

 caudal margins of the segments a little darker. Malehypopygium: 

 9th tergite from above (see plate 16, figure 4), with the latero- 

 caudal angles produced into strong spines between which is a 

 small rounded lobe covered with hairs; suture between the tergum 

 and sternum not clear; appendages of the pleural region viewed 

 from the side (sec plate 17, figure 5), tv.o in number, the more 

 ectad of which is a large, oval lobe, somewhat chitinized on its 

 edges, its vcntro-cephalic margin on the inside with a small oval 

 knob provided with hairs; inner lobe very large, its caudal edge 

 thickened and here provided at its tip with a comb of bristles di- 

 rected caudad and an apical bunch directed dorsad; inner face of 

 this appendage near its tip with a group of about 14 sharp points. 



Female. — Ovipositor with the sternal valves very high, blade- 

 like, the tips subacute; tergal valves very slender apically, the 

 tip scarcely enlarged. 



Holotype, d', Tokyo, Japan; April 13, 1912 (Vial 12). 



Allotype, 9, Tokyo, Japan; April 13, 19^12 (Vial 12). 



Paratypes, 5 cf , 5 9 ; as follows: 



Vial J ; 1 9 , Tokyo, Japan; August, 1912 (Cornell). 



Vial 12; 26^, 2 9, Tokyo, Japan; April 13, 1912 (Cornell). 



Vial 40; 3cf, 29, Tokyo, Japan, August, 1912 (U.S. Nat. 

 Mus.). 



The specific name is that of an aboriginal Japanese race for- 

 merly occupying the northern half of Nippon, now confined to 

 Yesso and the islands lo (lie northward. 



