20. SCHIZOCERUS. 37 



a. $ . Germany. J. F. Ruthe. 



b. 2 • Europe *. W. E. Leach. 



18. Schizocerus peletieri. 



Schizocerus peletieri, Be Villaret, Ann. Soc. Ent. Fr. i. p. 304, pi. xi. 



figs. 1-3 (1832). 

 Schizocera peletieri, Zadd. Schrift. Konigsb. iv. p. 123 (1863). 



Hdb. Paris. 



19. Schizocerus scutellaris. 



Hylotoma scutellaris, Herr.-Schdff. Panzer's Insecten, Heft 129, pi. iv. 

 (1834). 



Hab. Austria. 



20. Schizocerus vittatus. 

 Schizocera vittata, Mocs. Term, fiizetek iii. p. 115 (1879). 

 Hab. Buda. 



21. Schizocerus abdominalis. 



Schizocerus abdominalis, Cress. Proc. Ent. Soc. Phil. iv. p. 243 



(1865). 

 2 . ? S. plumiger, Cress. I. c. p. 242 (1865). 



Bab. Colorado. 



22. Schizocerus plumiger. 

 (Plate III. figs. 7 & 8.) 



Hylotoma plumigera, Klug, Berl. Mag. vi. p. 306, n. 37 (1814). 

 Schizocerus plumigera, Nort. Trans. Amer. Ent. Soc. i. p. 54 (1867). 

 Cryptus klugii, Leach, Zool. Misc. iii. p. 125, n. 2 (1817). 



Exp. al. 6 lin., long. corp. 3 lin. 



Male. Head black ; antennae long, furcate, with very long cilia ; 

 thorax and pectus black ; scapulae, tegulae, and pleura yellow ; 

 front legs testaceous ; four hind legs black, with yellowish knees. 

 Abdomen yellow, shining, tip black. "Wings hyaline, with piceous 

 nervures, smoky towards the base. 



Female similar, but the antennae are simple, and the thorax and 

 pectus are of a darker yellow than the abdomen, but not black. 



Hab. Georgia. 

 a,b. J 2 ■ (Types of C. klugii.) Georgia. W. E. Leach. 



* Many writers regard this species as a form of the female of S. furcatus. 

 The male is still unknown; but as some species of Tenthredinidce are par- 

 thenogenetic, the question must remain undecided until further evidence is 

 obtained. 



