Superfamily ICHNEUMONOIDEA 719 



This is a very small genus of Holarctic and Ethiopian (one Madagascan sp.) distribution. 



vertebrata (Cushman). N. H., Vt., N. W. T., B. C, w. Wash. 



Syrpkoctonus bilineatus Ashmead, 1900. /n Slosson, Ent. News 11: 320. Nomen nudum. 

 Himertosoma quinquecinctum Ashmead, 1902. hi Slosson, Ent. News 13: 320. Nomen 



nudum. 

 Syrpkoctonus vertebratus Cushman, 1922. U. S. Natl. Mas., Proc. 61 (8): 29. S. 



Genus ENIZEMUM Foerster 



Enizemum Foerster, 1868. Naturh. Ver. Rheinlande, Verb. 25: 162. 



Type-species: Bassus tibialis Cresson. By subsequent monotypy from inclusion by 

 Davis, 1895. 



This is a small Holarctic, Oriental, and Ethiopian genus. 



huronense Dasch. Northern Mich. Known only from two specimens. 



Enizemum huronense Dasch, 1964. Amer. Ent. Inst., Mem. 3: 199. 6. 

 imitatum Dasch. Ariz., n.e. Calif. Known only from two specimens. 



Enizemum imitatum Dasch, 1964. Amer. Ent. Inst., Mem. 3: 196. S. 

 insidiosum Dasch. Coastal Calif. The only specimen known was collected at Carmel, Calif. 



Enizemum insidiosum Dasch, 1964. Amer. Ent. Inst., Mem. 3: 197. 9. 

 matanuskae Dasch. Southern Yukon, Alaska. Known only from the holotype and one paratype. 



Enizemum matanuskae Dasch, 1964. Amer. Ent. Inst., Mem. 3: 191. 9. 



ornatum (Gravenhorst). N. S., Sask., Colo., N. Mex., Alta., Alaska, s. Yukon, B. C; Eurasia. 

 Host: Metasyrphus lapponicus (Zett.). 



Bassus deplanatus Gravenhorst, 1829. Ichn. Europaea, v. 3, p. 341. 6. 



Bassus omatus Gravenhorst, 1829. Ichn. Europaea, v. 3, p. 340. 6,9. 



Bassus carinulatus Ruthe, 1859. Stettin. Ent. Ztg. 20: 373. cJ, 9. 



Enizemum neomexicanum Brues, 1908. Wis. Nat. Hist. Soc, Bui. 6: 54. 9. 

 petiolatum (Say). N. B. w. to s.e. Alta., s. to e. N. C, s. Ala., n.e. Kans., and s. Colo. Host: 

 Metasyrphus americanus (Wied.). 



Pimpla? petiolatus Say, 1836. Boston Jour. Nat. Hist. 1: 224. 6. 



Bassus tibialis Cresson, 1868. Amer. Ent. Soc, Trans. 2: 110. 9. 



Bassus bicapillaris Walsh, 1873. Acad. Sci. St. Louis, Trans. 3: 88. "6" = 9. 



Pimpla parvialba Viereck, 1906. Amer. Ent. Soc, Trans. 32: 182. "cJ" = 9. 

 scorteum Dasch. Northern Que., N. W. T., n. Colo., s.e. B. C. 



Enizemum scorteum Dasch, 1964. Amer. Ent. Inst., Mem. 3: 194. 6,9. 

 tridentatum Dasch. Northern Colo., s.w. Alta., interior Alaska. 



Enizemum tridentatum Dasch, 1964. Amer. Ent. Inst., Mem. 3: 189. 6,9. 



Genus WOLDSTEDTIUS Carlson, n. genus 



Syrpkoctonus Foerster sensu Dasch, 1964. Amer. Ent. Inst., Mem. 3: 200-208. 



The type-species of this new genus is Bassus biguttatus Gravenhorst, which was formerly re- 

 garded as the type-species of Syrpkoctonus Foerster (which see). The genus is rather small, and 

 its species occur in the Neotropic, Holarctic, and Oriental regions. 



Taxonomy: Dasch, 1964. Amer. Ent. Inst., Mem. 3: 200-208 (Nearctic spp.). —Dasch, 1964. 

 Amer. Ent. Inst., Contrib. 1 (1): 45-63 (Neotropic spp.). 

 citropectoralis (Schmiedeknecht), n. comb. N. Y., Pa., e. Ohio, n. Mich., interior Alaska, s.e. B. 

 C; Europe. 

 Homocidus citropectoralis Schmiedeknecht, 1926. Opusc. Ichn., v. 5, p. 3412. 6. 

 flavolineatus (Gravenhorst), n. comb. N. S. w. to n. Yukon and Alaska, s. to e. S. C, s. Ala., 

 n.w. Ark., s. Colo., and n. Calif.; Mexico, Ecuador; Eurasia. Host: Allograpta obliqua 

 (Say), Metasyrpkus americanus (Wied.), M. lapponicus (Zett.), Ocyptannis clavatus (F.), 

 O.fascipennis (Wied.). 

 Bassus flavolineatus Gravenhorst, 1829. Ichn. Europaea, v. 3, p. 337. 9. 

 Bassus bimacidattis Holmgren, 1858 (1856). Svenska Vetensk.-Akad. Handl. (n. f.) 1: 360. 

 6. 



