304 Hymenoptera in America North of Mexico 



Theracmion Holmgren, 1872. Ofvers. K. Vet. Akad., Forh. 29: 99. 

 Type-species: Theracmion arcticus Holmgren. Monotypic. 



A cosmopolitan genus of which many species are of doubtful identity. Host range is wide but 

 mainly in the Aphididae. 



Revision: Marshall, 1896. In Andre, Spec. Hym. Eur. Alg., v. 5, pp. 557-610 (Eur. spp.). 

 -Marshall, 1899. Ent. Soc. Lond., Trans. 1899: 37-71 (British spp.). -Gahan, 1911. Md. 

 Agr. Expt. Sta., Bui. 152: 166-183 (No. Amer. spp.). —Smith, 1944. Aphidiinae of North 

 America, pp. 34-84 (No. Amer. spp.). — Stary, 1966. Aphid Parasites of Czechoslovakia, pp. 

 83-86 (some Eur. spp.). —Stary and Schlinger, 1967. Rev. Far East Asian Aphidiidae, pp. 

 11-30 (East Asian spp.). 



Taxonomy: Hincks, 1951. Zool. NomencL, Bui. 4: 18-19 (nomenclature). — Mackauer, 1961. 

 Beitr. z. Ent. 11: 109-112. —Mackauer, 1968. Hym. Cat., part 3, pp. 42-58 (cat. World spp.). 

 —Stary, 1974. Ztschr. f. Angew. Ent. 77: 141-171. 



Biology: Hartley, 1922. Ohio Jour. Sci. 22: 209-237. -Boese, 1936. Ztschr. f. Parasitenk. 8: 

 243-284. -UUyett, 1938. Dept. Agr. For. Un. S. Afr., Sci. Bui. 178: 1-28. -Stary, 1966. 

 Aphid Parasites of Czechoslovakia, pp. 51-61. 



Morphology: Short, 1952. Roy. Ent. Soc. London, Trans. 103: 80-82 (larvae). — Ivanova-Kasas, 

 1956. Prob. Sovr. Embryol. 1956: 199-204 (embryology). —Ivanova-Kasas, 1956. Ent. Obozr. 

 35: 245-261 (embryology). -Sedlag, 1956. Deutch. Zool. GeseU., Verh. 1956: 356-361 (female 

 genitalia). — Wiackowski, 1962. Polski Pismo Ent. 32: 253-310 (egg, larvae, cocoon, adult). 

 — Eastop, 1966. Roy. Ent. Soc. London, Proc. (A) 41: 42-44 (mouthparts). — Eady, 1969. 

 Roy. Ent. Soc. London, Proc, Ser. B., 38: 165-173 (petiole). 

 alius Muesebeck. Calif. Host: Macrosiphum euphorbiae (Thomas), M. rosae (L.). 

 Aphidius (Aphidius) alius Muesebeck, 1958. Ent. News 69: 142. 9, <J. 



Biology: Schlinger, 1960. Jour. Econ. Ent. 53: 151-154. —Schlinger and Hall, 1960. Ent. Soc. 

 Amer., Ann. 53: 405. 



atropetiolatus Ashmead. Colo. 



Aphidius atropetiolatus Ashmead, 1890. Colo. Biol. Assn., Bui. 1: 20. S. 

 avenaphis (Fitch). D. C, S. C, Ont., Mich., Ohio, Ind., Tenn., Mo., Calif. Host: Acyrthosiphon 



solani (Kalt.), Macrosiphum euphorbiae (Thomas), M. avenae (F.), Myzus persicae 



(Sulzer), Rhopalosiphum padi (L.). 

 Praon avenaphis Fitch, 1861. N. Y. State Agr. Soc, Trans. 20: 840. 

 Aphidius xanthus Ashmead, 1889 (1888). U. S. Natl. Mus., Proc. 11: 661. 6. 

 Aphidius granariaphis Cook, 1890. Canad. Ent. 22: 125. 9, d. 

 colemani Viereck. Calif. ?; Mediterranean Europe, Asia, Africa, Australia, South America. 



Liberated in California (as platensis) but not known to be established. Introduced from 



Brazil. 

 Aphidius colemani Viereck, 1912. U. S. Natl. Mus., Proc. 42: 141. 9, cJ. 

 Aphidius platensis Brethes, 1913. Mus. Nac. Hist. Nat. B. Aires, An. 24: 41. 9. 

 Aphidius hubrichi Brethes, 1913. Mus. Nac Hist. Nat. B. Aires, An. 24: 41. "9" = 6. 

 Aphidiiis porteri Brethes, 1915. Ann. Zool. Apl. 2: 13. 6. 



Aphidius aphidiphilus Benoit, 1955. Mus. Roy. Congo Beige, Ann. 36: 349. 9, cj. 

 Aphidius Leroyi Benoit, 1955. Mus. Roy. Congo Beige, Ann. 36: 350. 9. 

 Aphidius tra7iscaspicus Telenga, 1958. Biol. Zh. Akad. Nauk Uzbekskoi 2: 55. 9, S. 



Taxonomy: Stary, 1975. Acta Ent. Bohemoslov. 72: 156-163. 



Biology: Millan, 1956. Revta Invest. Agr. Buenos Aires 10: 243-280. —Mackauer and Stary, 

 1967. Index World Aphidiidae, p. 83-84 (intro. into Calif, as platensis). —Stary, 1972. 

 Orient. Ins. 6: 359-370 (distr. and host range as platensis). 

 coloratus Baker. Pa. 



Aphidius coloratus Baker, 1909. Pomona Jour. Ent. 1: 24. 9. 



Taxonomy: Mackauer, 1963. Canad. Ent. 95: 928-930. 



