THE CANADIAN ENTOMOLOGIST 241 



a cylindrical chitinized arm, and whose cephalic branch is produced 

 dorsad into a spoon-shaped appendage whose concavity is directed 

 toward the chitinized portion of the 9th tergite; entad of these 

 appendages is a large lobe whose point is chitinized and directed 

 cephalad, the sides with deep parallel grooves. The penis is rather 

 short and very stout; just underneath its tip inside the pleura are 

 a pair of apophyses (shown in the figure), these strongly chitinized 

 and ending in two sharp spines of which the caudal one is the 

 larger. 



Female. — Like the o 71 , but the dorsal abdominal stripe is much 

 broader, lateral'stripes also much broader; on the caudal half of 

 the 7th tergite and on the 8th tergite, all three of the dorsal vittae 

 unite and cover the segment; the sternal vitta is very broad, but 

 is interrupted at the end of the 6th segment; segments 7 and 8 

 with a small brown median spot near the caudal margin, and the 

 anterior and posterior edges of the sclerite a little darker; genital 

 segment dull yellow. 



Holotype, o 71 , Tokyo, Japan; May 7, 1912; vial 36. 



Allotype, 9 , Tokyo, Japan; April 26, 1912; vial 21. 



Paratypes, 2 9, Tokyo, Japan; April 23, 1912; vial 3. 



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

 merly occupying the north-west shores of the southern half of 

 Nippon facing the Sea of Japan. 



Explanation of Plates. 



Plate XI. 



Fig. 1. Wing of Pachyrhina pullata, sp. n. 

 Fig. 2. P. palloris Coquillett. 



Fig. 3. P. repanda, sp. n. 



Fig. 4. P. virgata Coquillett 



Fig. 5. P. flavonota, sp. n. 



Fig. 6. Dorsal aspect, 9th tergite, of P. flavonota, sp. n.; c 71 . 

 Fig. 7. P. pullata, sp. n.; o 71 . 



Fig. 8. P. repanda, sp. n.; o 71 



Fig. 9. P. virgata Coquillett ; o 71 . 



Fig. 10. Sixth antennal segment, P. virgata Coquillett; o 71 . 

 Fig. 11. P. repanda, sp. n.; o 71 . 



Fig. 12. P. pullata, sp. n.; c 71 - 



