358 



TENXHREDINID^. 



Tenthredo longicornis, Fourcr. Fnt. Par. ii. p. 378, n. 44 (1785). 

 Cephas leskii, St.-Fary. Man. Tenthr. p. 20, n. 58 (1823). 

 Banchus spiriipes, Pans. Faun. Germ. Heft 73, pi. xvii. (1797). 

 Astatus spinipes, Khtg, Man. Sir. Germ. p. 61, pi. vi. figs. 4 a, b (1803 ) ; 



Hart. Blattw. p. 361 (1837). 

 Cephus atripes et pusillus, Steph. III. Brit. Ent., Mand. vii. pp. 105 



& 107 (1835). 

 Banrhus viridator, Fain: Syst. Piez. p. 127, n. 5 (1804). 



( C. atripes.) Exp. al. 6-7| lin., long. corp. 3-4 lin. 



Black ; base of mandibles, pleura?, hind coxae, and sides of ab- 

 domen with yellow dots ; abdomen with a yellow triangle at the 

 base, segments 3 and 4 broadly, and 5 and 9 narrowly edged behind 

 with lemon-yellow : legs testaceous : femora and hind legs (except 

 the tibia? beneath, which are testaceous) black. Wings hyaline, with 

 piceous nervures ; antenna? slightly thickened towards the tip. 



(C. pusillus.) Exp. al. 5 lin., long. corp. 3 lin. 



Differs in its smaller size ; segments 4—6, or only 5 and 6, are 

 belted with yellow behind broadly, and 9 narrowly ; the abdominal 

 spots are wanting ; the antenna? are testaceous beneath towards the 

 extremity, and the hind tibia? are testaceous, except at the tips. 



Although treating these forms as C. pygmceus, yet I have thought 

 it desirable to figure and briefly characterize them from original 

 Stephensian examples. 



16. Cephus pilosulus. 

 Cephus pilosulus, Thorns. Hym. Scand. i. p. 323 (1871). 

 Hah. Sweden. 



17. Cephus infuscatus. 



Cephus infuscatus, Thorns. Hym. Scand. i. p. 323 (1871). 

 Hab. Xorth Germany. 



1 8. Cephus quadricinctus. 

 Cephus quadiiciuctus, Thorns. Hym. Scand. i. p. 320 (1871). 

 Hab. Sweden. 



19. Cephus pulcher. 

 Cephus pulcher, Tischh. Stett. ent. Zeit. xiii. p. 139 (1852). 

 Hab. Hungary. 



