ART. 3 REVISION OF ICHNEUMON-FLIES CUSHMAN 13 



the foregoing key. In nearly all respects it is very similar to 

 tibialis, and is possibly only a western variety of that species. 



Female. — Differs from tibialis practically only in that the legs 

 are entirely red and the abdomen distinctly punctate. 



Type-locality. — Priest River, Idaho. 



Type.—Q^i. No. 42035, U.S.N.M. 



Paratype b. — Canadian National Collection. 



Three females; the type reared under Hopkins U. S. No. 1042 a 

 from Leptura obliterata Haldeman in grand fir; Paratype a taken 

 at Collins, Idaho, July 28, 1898, by C. V. Piper ; and Paratype b at 

 Lorna, British Columbia, July 31, 1924, on Picea engelmanni by 

 R. Hopping, and bearing the number 17203, lot 30. 



ODONTOMERUS CANADENSIS Provancher (Rohwer) 



Figs. Ic, 2c, 3e, and 4a 



Exochus propinquus (Cresson) Peovakcher, Nat. Can., vol. 7, 1875, p 13H, 



male. 

 Odontomerus canadensis Provancher, Nat. Can., vol. 9, 1877, p. 16; vol. 12, 



1880, p. 102; Faune Ent. Can., 1883, p. 490, female, male. 

 Odontomerus melUpes (Say) Bradley, Bull. Brooklyn Ent. Soc, vol. 13, 1918, 



p. 103, female, male (part). 

 Odontomerus canadensis Rohwer, Proc. U. S. Nat. Mus., vol. 57, 1920, p. 458, 



female, male (part). 

 Odontomerws mellipes (Say) Walley, Can. Ent., vol. 59, 1927, p. 74 (part). — 



Johnson, Biol. Survey of Mount Desert Region, Part 1, 1927, p. 137. 

 Odontomerus canadensis Johnson, Biol. Survey of Mount Desert Region, Part 



I, 1927, p. 187. 



This is canadensis as represented by a large majority of the speci- 

 mens placed under the name by Rohwer. If it is conspecific with 

 Provancher's female type that specimen is rather unusual in the 

 color of the hind tibiae. Some of the smaller females have the hind 

 tibia blackish above and whitish below but none has it entirely black 

 as described for the type. A few specimens have the hind tibia 

 whitish except at apex but have not the length of ovipositor as de- 

 scribed for albotibialis. 



In the female it can be distinguished from mellipes as follows: 

 Body and legs not quite so stout; head not or barely wider behind 

 eyes than at eyes; postocellar line very nearly as long as ocell- 

 ocular line; facial quadrangle fully as long as broad; antennae 

 nearly as long as body, slender with flagellar joints cylindrical, 

 first joint about three times as long as thick and barely a fourth 

 longer than second, all others at least a half longer than thick; 

 mesoscutum and scutellum polished impunctate, sternum and lower 

 pleurum very sparseij^ punctate; hind femur distinctly more than 

 twice as long as deep; hind tarsus nearly as long as tibia, apical 

 joint hardly a half longer than second joint, that of middle leg not 

 twice as long as second, front tarsus much longer than tibia, first 



