562 Hymenoptera in America North of Mexico 



pleuralis Cresson. Mass., N. Y., Man., and Yukon s. to Md., 111., Tex., and Ariz. Host: Ancylis 

 comptana (Froel.), Anacampsis agrinioniella (Clem.), Acleris sp. on Vibtiniuin. 

 Exochus pleuralis Cresson. 1864. Ent. Soc. Phila., Proc. 3: 286. <J. 

 Exochus pallipes Cresson, 1864. Ent. Soc. Phila., Proc. 3: 287. 6. Preocc. by Exochus 



pallipen (Motchulsky), 1863. 

 Exochus evectus Cresson, 1872. Amer. Ent. Soc, Trans. 4: 168. 9. 



Exochus pallUlipes Dalla Torre, 1901. Hym. Cat., v. 3, p. 213. Emend.; Preocc. in Exochus 

 by Dalla Torre, 1901, p. 48. 

 postfurcalis Townes. N. S. w. to Man., s. to N. C, Kans., and Colo. Host: Episi7nus argutamcs 

 (Clem.), Acleris oxycoccana (Pack.). 

 Exochus postfurcalis Townes, 1959. In Townes and Townes, U. S. Natl. Mus. Bui. 216 [pt. 

 1]:242. 6,9. 

 pullatus Townes. Northern Man., interior Alaska. 



Exochus pullatus Townes, 1959. Iti Townes and Townes, U. S. Natl. Mus. Bui. 216 [pt. 1]: 

 197. 6, 9. 

 quadradens Townes. Md. 



Exochus quadradens Townes, 1959. In Townes and Townes, U. S. Natl. Mus. Bui. 216 [pt. 

 1]:254. 9. 

 russeus Townes. Pa.?, N. Mex., Ariz. 



Exochus russeus Townes, 1959. hi Townes and Townes, U. S. Natl. Mus. Bui. 216 [pt. 1]: 

 188. 6, 9. 

 rutilatus Townes. N. S., P. E. I., Que., Mass., N. Y., Pa., Md., e. N. C, Ont., Wis., s. B. C. 



Exochus rutilatus Townes, 1959. In Townes and Townes, U. S. Natl. Mus. Bui. 216 [pt. 1]: 

 225. 6, 9. 

 semirufus Cresson. N. S. s. to S. C, w. to Sask., e. Kans., and Tex. 



Exochus semirufus Cresson, 1868. Amer. Ent. Soc, Trans. 2: 114. 6,9. 

 Mesoleius inflatifrons Provancher, 1886. Addit. Corr. Faune Ent. Canada Hym., p. 107. 9. 

 Exochus ntfigaster Ashmead, 1890 (1889). U. S. Natl. Mus., Proc. 12: 443. 9. 

 Exochus solitarius Davis, 1897. Amer. Ent. Soc, Trans. 24: 216. 6. Davis described 

 solitarius from a composite specimen; this synonymy is based upon the abdomen, which 

 was selected as lectotype by Townes (1945); the head and thorax are those of another 

 Exochus sp. which Townes did not identify. 



Taxonomy: Townes, 1945. Amer. Ent. Soc, Mem. 11: 587. 

 signifer Townes. Maine, N. Y., n. Ohio, Mich., Wis., Minn., Utah, Alaska, B. C. 



Exochus signifer Townes, 1959. In Townes and Townes, U. S. Natl. Mus. Bui. 216 [pt. 1]: 

 240. 9. 

 silus Townes. Northern Idaho, n. Utah, e. Calif. The type locality is River Heights (Cache Co.), 

 Utah. 

 Exochus silus Townes, 1959. In Townes and Townes, U. S. Natl. Mus. Bui. 216 [pt. 1]: 261. 

 6, 9. 

 spilotus Townes. Coastal Maine, w. Ont., w. Wash. Host: Tortricid. 



Exochus spilotus Townes, 1959. In Townes and Townes, U. S. Natl. Mus. Bui. 216 [pt. 1]: 

 245. 9. 

 spinalis Townes. Central and s.w. Calif.; Honduras? Host: Clepsis peritana (Clem.). 



Exochus spinalis Townes, 1959. In Townes and Townes, U. S. Natl. Mus. Bui. 216 [pt. 1]: 

 202. 9. 

 stenostoma Townes. Ariz., s. B. C, Wash., Oreg., Calif. Host: Cadra figulilella (Greg.). 



Exochus stenostoma Townes, 1959. In Townes and Townes, U. S. Natl. Mus. Bui. 216 [pt. 

 1]: 179. cJ, 9. 

 tenebrosus Townes. Northwestern Wyo., Colo., w. Wasn. Ecology: This species has been 



collected at elevations between 8850 ft. and 11600 ft. in the Rocky Mts. and at 4700 ft. 

 in the Cascade Range. 

 Exochus tenebrosus Townes, 1959. In Townes and Townes, U. S. Natl. Mus. Bui. 216 [pt. 

 1]:220. 6,9. 



