168 Hymenoptera in America North of Mexico 



sanninoideae (Gahan). Ont. s. to Ga., w. to Wis., Kans., and Ark. Host: Alcathoe caudata 



(Harr.), Podosesia syringae fraxini Lugg., Synanthedon exifiosa (Say), S. rhododendri 

 (Beut.). 

 Microbracon sanninoideae Gahan, 1917. U. S. Natl. Mus., Proc. 53: 196. 9, S. 

 scanticorum (Viereck). Conn., 111. 



Microbracon scanticorum Viereck, 1917 (1916). Conn. State Geol. and Nat. Hist. Survey, 

 Bui. 22, p. 207. 

 sesiae (Muesebeck). Conn., N. Y., Colo. Host: Janus integer (Nort.), Syyianthedon tipuliforrnis 

 (Clerck). 

 Microbracon sesiae Muesebeck, 1925. U. S. Natl. Mus., Proc. 67 (8): 53. 9, S. 

 sphenophori (Muesebeck). Mo., Ark. Host: Sphenophonis callosus (OHv.). 



Microbracon sphenophori Muesebeck, 1925. U. S. Natl. Mus., Proc. 67 (8): 25. 9, 6. 

 sulcifrons (Ashmead). Colo. 



Microbracon sulcifrons Ashmead, 1890. Colo. Biol. Assoc, Bui. 1: 15. 6. 

 tachypteri (Muesebeck). N. Y., W. Va., Wis., Kans., Colo. Host: Tachypterellus consors cerasi 

 List, T. quadrigibbus (Say), T. q. magrias List. 

 Microbracon tachypteri Muesebeck, 1925. U. S. Natl. Mus., Proc. 67 (8): 68. 9. 

 tenuiceps (Muesebeck). Que. s. to Va. and Tenn., w. to Ont. and Kans.; Tex., Idaho, Nev., Wash. 

 Host: Hypera meles (F.), H. nigrirostris (F.). 

 Microbracon tenuiceps Muesebeck, 1925. U. S. Natl. Mus., Proc. 67 (8): 46. 9. 

 tenuis Muesebeck and Walkley. Alaska. 



Macrodyctiiim politimi Ashmead, 1902. Wash. Acad. Sci., Proc. 4: 252. 9 . Preocc. by 



Provancher, 1888. 

 Microbracon ashmeadi Muesebeck, 1925. U. S. Natl. Mus., Proc. 67 (8): 42. N. name for 



politum Ashmead; preocc. by Morrison, 1917. 

 Bracon tenuis Muesebeck and Walkley, 1951. U. S. Dept. Agr., Agr. Monog. 2, p. 168. N. 

 name for ashmeadi Muesebeck. 

 terebella Wesmael. N. Y., Pa., Ohio; Europe. Host: Cephus cinctus Nort., C. pygmaeus (L.), 

 Tracheitis tabidus (F.). This species was also introduced into Ont., N. Dak., and Mont, 

 from Europe but apparently not established. 

 Braco terebella Wesmael, 1838. Nouv. Mem. Acad. Sci. Bruxelles 11: 57. 9. 



Biology: Salt, 1931. Bui. Ent. Res. 22: 527-534. 

 thurberiphagae (Muesebeck). Tex., Ariz.; Mexico, West Indies. Host: Ancylostomia stercorea 

 (Zell.), Anthonomus grandis thurberiae Pierce, Thurberiphaga diffusa (Barnes). 

 Microbracon thurberiphagae Muesebeck, 1925. U. S. Natl. Mus., Proc. 67 (8): 54. 9, 6. 



Biology: Bennett, 1960. Bui. Ent. Res. 50: 747-749. 

 tychii (Muesebeck). Utah, Idaho, Calif. Host: Etiella zinckenella (Treit.), Tychius lineellus 

 Lee, T. semisquaynosus Lee. 

 Microbracon tychii Muesebeck, 1925. U. S. Natl. Mus., Proc. 67 (8): 51. 9, 6. 

 uncas (Viereck). Conn. 



Microbracon uncas Viereck, 1917 (1916). Conn. State Geol. and Nat. Hist. Survey, Bui. 22, 

 p. 208. 

 variabilis (Provancher). Que. s. to Ga., w. to Minn, and Tex.; Idaho. Host: Acrobasis caryae 

 Grote, A. nibrifasciella Pack., Blastodacna sp., C onotrachelus nenuphar (Hbst.), 

 Paralobesia viteana (Clem.), Tachypterellus quadrigibbus (Say), T. q. magnas List. 

 Opius variabilis Provancher, 1888. Addit. Corr. Faune Ent. Canada Hym., p. 382. 6. 

 Bracon tortricicola Ashmead, 1889 (1888). U. S. Natl. Mus, Proc. 11: 621. 9. 



Biology: Nickels, Pierce, and Pinkney, 1950. U. S. Dept. Agr., Tech. Bui. 1011, p. 9-12. 

 — Balduf, 1968. Ent. Soc. Amer., Ann. 61: 467-468. 

 wawequa (Viereck). Conn. 



Microbracon wawequa Viereck, 1917 (1916). Conn. State Geol. and Nat. Hist. Survey, Bui. 

 22, p. 206. 

 xanthonotus Ashmead. N. H., Va., Minn., Colo., N. Mex., Idaho, Utah, Ariz., Wash., Oreg., 



Calif. Host: Malacosonia califomicuni califomicum (Pack.), M. c. fragile (Stretch), M. c. 



