230 TENTHREDINID^E. 



78. Dolerus affinis. 

 (Plate IX. fig. 12.) 



Dolerus affinis, Cameron, Trans. Ent. Soc. Lond. 1876, p. 470. 



Exp. al. 8-9 lin., long. corp. 4 lin. 



Closely allied to B. epliippiatus, but less pilose ; wings and 

 antennas shorter ; abdomen stouter, bluish black above, and black 

 below ; pectus wholly black, except the anterior angle ; thorax with 

 a small black spot in front ; head a little more closely punctured ; 

 wings a little darker. 



Hah. China. 



6. 2 ■ \ WP } Shanghai. R. Fortune. 



79. Dolerus coxalis. 



Dolerus coxalis, Motsch. Bull. Mose. xxxix. p. 182 (1866). 

 Hah. Japan. 



B. North- American Species. 



80. Dolerus unicolor. 



Tenthredo unicolor, Beauv. Ins. Afr. Amer. p. 97, pi. ix. fig. 2 (1805). 

 Dolerus unicolor, St.-Farg. Man. Tenthr. p. 125, n. 373 (1823); 



Nort. Proc. Bost. Soc. viii. p. 154 (1861) ; id. Trans. Amer. Ent. 



Soc. i. p. 234 (1867). 



Hah. North America. 



a. (5 • New York. E. Doubleday. 



b. c. rf. Nova Scotia. Lieut. Redman. 

 d-g. J . N. America. 



81. Dolerus thoracicus *. 



Tenthredo thoracica, Beauv. Ins. Afr. Amer. p. 97, pi. ix. fig. 3 



(1805). 

 Dolerus arvensis, Say, Long's Second Exped. ii. p. 319, n. 2 (1824) ; 



Nort. Trans. Amer. Ent. Soc. i. p. 235 (1867). 

 Dosytheus arvensis, Nort. Proc. Bost. Soc. viii. p. 151 (1861). 



Hah. North America. 



a, b. $ . Nova Scotia. Lieut. Redman. 



c. 2 • New York. E. Doubleday. 

 d-h. 2- N. America. 



82. Dolerus sericeus. 



Dolerus sericeus, Sag, Long's Second Exped. ii. p. 320, n. 3 (1824) ; 

 Nort. Proc. Bost. Soc. viii. p. 151, n. 1 (1861) ; id. Trans. Amer. 

 Ent. Soc. i. p. 235, n. 3 (1867). 



Hah. North America. 



* Probably the female of the preceding species. 



