TENTHHEDINID^. 



2. Cladius pectinicornis. 



Tenthredo pectinicornis, Fourcr. Ent. Par. ii. p. 374, n. 33 (1785). 

 Cladius geoffroyi, St.-Farg. Mon. Tenthr. p. 58, n. 166 (1823). 

 Cladius difformis, Hart. Blattw. p. 175 (1837) ; Vollenh. Tijdschr. 



Ent. xi. p.202, pi. ix. (1868) ; Thorns. Hym. Scand. i. p. 71 (1871). 

 Cladius pectinicornis, Costa, Faun. Nap., Tentr. p. 9, pi. lxiii. fig. 1 



(antenna) (1859). 

 Tenthredo alces, Thunb. Mus. Ups. p. 7, n. 85 (1804 ?). 

 Var. Cladius lacteus, Hart. Blattw. p. 176 (1837). 



Hab. Europe. 







a-i. S 2 • 



Britain. 



J. F. Stephens. 



k-o. S $ • 



Britain. 





p. ?. 



England. 



T. R. Billups, Esq, 



q-aa. <$ £ . 



Germany. 



J. F. Ruthe. 



bb-dd. S $ . 



Europe. 





3. Cladius difformis. 



Tenthredo difformis, Panz. Faun. Germ. Heft 62, pi. x. (1799). 

 Cladius difformis, St.-Farg. Mon. Tenthr. p. 57, n. 165 (1823) ; Costa, 

 Faun. Nap., Tentr. p. 10, pi. lxiii. fig. 2 (antenna) (1859). 



Hab. Switzerland, Italy. 



4. Cladius isomerus. 



Cladius isomera, Norton, Proc. Post. Soc. viii. p. 223 (1861) ; id. 

 Trans. Amer. Ent. Soc. i. p. 74 (1867). 



Hab. North America. 



a-d. 2 • St. Martin's Falls, Albany River, Dr. Barnston. 



Hudson's Bay *. 

 e. S • North America. 



50. TRICHIOCAMPUS. 



Trichiocampus, Hart. Blattw. p. 176 (1837). 



1. Trichiocampus viminalis. 



Tenthredo viminalis, Fall. Vetensk. Handl. xxix. p. 117, n. 59 (1808). 

 Cladius viminalis, Vollenh. Tijdschr. Ent. i. p. 176, pi. x. (1858) ; 



Thorns. Hym. Scand. i. p. 74, n. 5 (1871). 

 Nematus grandis, St.-Farg. Mon. Tenthr. p. 61, n. 179 (1823). 

 J . Cladius luteicornis, Steph. III. Brit. Ent., Mand. vii. p. 24, n. 7, 



pi. xxxviii. fig. 1 (1835). 

 Cladius eucera, Hart. Blattw. p. 177 (1837). 



Hab. Northern and Central Europe. 



* Two of these specimens were bred from bright yellow caterpillars, spotted 

 with black on the sides, found feeding on smooth willow and aspen on July 29, 

 1838. (MS. note.) 



