458 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. 57. 



sharply toothed. Besides the type a specimen from the eastern 

 United States, compared with the type, has been examined. 

 Massachusetts. 



ODONTOMEKUS MELLIPES (Say). 



Anomalonmellips Say, Contrib. Maclur. Lye. Phila., vol. 2, 1828, p. 75. — LeConte, 



ed.of Say, vol. 1, p. 378. 

 Odontomerus mellipes Say, Ckesson, Traus. Amer. Eut. Soc, vol. 3, 1870, p. 168. 

 Odontomerus errans Rohwer, Proc. U. S. Nat. Mus., vol. 45, 1913, p. 360. 



Say's type has been lost, but a neotype, designated by Rohwer 

 (from Pennsylvania) which agrees with Say's description in all ways, 

 is in the United States National Museum. The type of errams is 

 Cat. No. 15374, U.S.N.M. 



This species has an extremely characteristic habitus. It can be 

 readily distinguished from ca^mf^ensis, its nearest ally, by the characters 

 mentioned in the foregoing table. 0. errans Rohwer was separated 

 in the original description by having the basal area and the areola 

 separated by a transverse carina, but this character is subject to such 

 variation that the species must be considered as a synonym of melli'pes 

 Say. 



Pennsylvania; Flatbush, Long Island, New York; Washington, 

 District of Columbia; South Dakota; French Creek, West Virginia 

 (F. E. Brooks) ; Toronto, Canada (E. M. Walker) ; Priest River Lake, 

 Idaho (Hopkins); Indiana (Say). 



Host. — Reared from larvae of Parandra hrunnea by F. E. Brooks. 



ODONTOMERUS CANADENSIS Proyancher. 



Odontomerus canadensis Provancher, Nat. Can., vol. 11, 1877, p. 102; Faun. Ent. 

 Can., 1883, p. 490. 



Type. — Female with label in the 1877 Provancher collection; and 

 type, male, with name label and yellow label 426 in the second Pro- 

 vancher collection, Public Museum, Quebec. 



As at present defined this species varies considerably; the females 

 vary from 8 to 15 mm., and the length of the ovipositor from one- 

 fourth to one-third longer than the abdomen, depending on the size 

 of the specimen. Hind tibiae in the female vary from piceous black 

 as in the type to rufous with some black at the ends to entirely rufous; 

 in the male the hind tibiae are usually black but often are black with 

 a rufous line beneath, while in occasional specimens they are almost 

 entirely rufous; the areolatiou of the propodeum is also subject to 

 considerable variation, especially the distance between the median 

 carinae and the place where they are intersected by the costulae. 

 Provancher and Cresson both separated this species from mellipes by 

 the color of the tibiae, but inasmuch as this character is not specific 

 they had specimens of canadensis labelled as mellipes. The species 

 is closely allied to mellipes and can only be separated by the charac- 

 ters made use of in the foregoing table. 



