254 NORTHERN ZOOLOGY. 



ORDER HYMENOPTERA. Linn. 

 I. TEREBRANTIA. 



i. Securifera. Lat. 



Family CIMBICIDM. Cimbitidans. 



CXLVI. Genus CIMBEX. Oliv. 



(351) 1. Cimbex femorata. Large-thighed Cimbex. 



Cimbex femorata. Fab. Syst. Piezat. 15, 1. Steph. Ittustr. Mandib. vii, 6, 1. Lat. Crust. Arach. et Ins. ii, 272. St. 



Farg. Tenthred. 31, 83. Lam. An. sans Vertebr. iv, 176, 1. Walck. Fn. Paris 2, 32, 1. 



Europea. Sam. Compend. 262, 1. 



Tenthredo femorata. Linn. Syst. Nat. ii, 120, 1 ; Fn. Suec. 1533. Fab. Ent. Syst. ii, 104, 1. Ced. Fn. Ingr. 455. 



Vill. Ent. iii, 78, 1. Panz. Fn. Germ, xxvi, t. 20. De Geer Ins. ii, 944, 2, t. xxxiv, /. 1 —6. Jur. Hymen. 47. 

 Crabro femorata. Geoff. Ins. ii, 263, 3, t. xiv, /. 4. Scop. Ann. Hist. Nat. v, 120, 142. Sulz. Ins. t. xxvi, /. 4. Sehsff. 



Icon. t. civ, /. 1 , 2. Alb. Ins. 69. 



Length of the body 10 ) ,. 



Expansion of the wings 21 £ 



A single specimen taken in Lat. 65°. 



DESCRIPTION. 



? 

 Body very black, hairy. Antennae yellow, brown at the base: legs blue-black; tarsi yellow: 

 wings hyaline with yellow nervures, brown at the tip, with a brown cloud in the middle areolet 

 adjoining the costa. 



CXLVII. Genus TRICHIOSOMA. Leach. 



(352) 1. * Trichiosoma Triangulum. Triangle Trichiosoma. 



T. (Triangulum) nigrum, cinereo-lanuginosum ; antennis articulis tribus clavo proximis, alts, tibiis tarsisque, testaceis ; femo- 



ribus atro-caruleis ; abdomineferrugineo, dorso triangulo isosceli nigro insigni. 

 Triangular Trichiosoma black, hairy, with cinereous lanuginous hairs ; antenna? with the three joints next the knob, the 



wings, and the tibiae and tarsi, testaceous ; thighs black-blue ; abdomen ferruginous, with a dorsal black 



isosceles triangle. 



Length of the body 9 lines. 



A single specimen taken in Lat. 65°. Another was also sent me from Canada 

 by Dr. Bigsby. 



