708 Hymenoptera in America North of Mexico 



dentatus Dasch. N. Y., Ky., Minn., Colo., Alta., s.e. B. C, n. Idaho. Ecology: Presumed to have . 

 been reared from a parasite of Arge pectoralis (Leach). 



Mesochorus dentatus Dasch, 1971. Amer. Ent. Inst., Mem. 16: 125. 6,9. 

 discitergus (Say). Newfoundland (insular) w. to interior Alaska, s. to Fla., Tex., Ariz., and 



Wash.; West Indies and Mexico s. to Brazil and Peru; Eurasia; South Africa? Ecology: 

 Reared or presUined to have been reared from parasites of the following- Papilionidae 

 (Papilio polyxenes asterius StolL), Pieridae {Colias eurytheme Bdv.), Geometridae 

 {Anthelia hyperboria Hulst, Biston betularia cognataria [Gn.], Caripeta sp., C. 

 angustiorata Wlk.?, C. divisata Wlk., Ectropis sp., Enypia packardata Tay., Epirrita 

 autumnata henshawi [Swett], Eupithecia sp., Lambdina fiscellaria fiscellaria [Gn.], L.f. 

 lugubrosa [Hulst], Lo6op/iora nivigerata Wlk., Melanolophia imitata [Wlk.], Nepytia 

 canosaria [Wlk.], N. phantasmaria [Stkr.], Pleuroprucha insularia [Gn.], Seviiotkisa 

 "grmiitata" and., S. oweni [Swett]), Limacodidae {Prolimacodes badia [Hbn.], Noctuidae 

 (Caemirgina erechtea [Cramer], Celama triquetrana [Fitch], Ceramica picta [Harris], 

 Feralia jocosa [Gn.], Heliothis zea [Bod.], Panthea portlandia Grt., Peridroma saucia 

 [Hbn.], Pseudaletia unipuncta [Haw.], Spodoptera frugiperda [J. E. S.]), Sphingidae 

 {Manduca sexta [Joh.]), Arctiidae (Euchaetias egle [Drury], Halisidota s. H. caryae 

 [Harris], H. maculata [Harris], H. tessellaris [J. E. S.], Tyria jacobaea [L.] Lymantriidae 

 (Dasychira plagiata [Wlk.], D. vagana [B. and McD.]), Notodontidae (Notodonta sp.), 

 Zygaenidae (Harrisina americana [Gn.]), Lyonetiidae (Bedellia minor Bsk.), sp. of 

 Pterophoridae, and Tenthredinidae {Anoplonyx sp.). Host: Apanteles sp., A. glomeratus 

 (L.), A. lunatus (Pack), A. militaris (Walsh), A. paleacritae Riley, Meteorus communis 

 (Cr.), Microplitis melianae Vier.? 



Cryptus discitergus Say, 1836. Boston Jour. Nat. Hist. 1: 231. 9. 



Mesochorus vitreus Walsh, 1861. 111. State Agr. Soc, Trans. 4: fig. 4; p. 364, p. 368. J, 9. 

 Synonymy uncertain because in revising the concept of discitergus Dasch (1971) 

 erroneously selected as "lectotypes" of vitreus two female specimens which are not 

 Walsh type material and bear no label in the handwriting of Walsh. The alternate 

 spelling "vitrens" appeared in the legend for Walsh's figure 4. 



Mesochorus obliquus Cresson, 1872. Canad. Ent. 4: 24. 9. 



Mesochorus facialis Bridgman, 1884. Ent. Soc. London, Trans. 32: 431. 6, 9. 



Mesochorus pulchellus Cook and Davis, 1891. Mich. Agr. Expt. Sta. Bui. 73: 10. 9. 



Mesochorus infemalis Viereck, 1911. U. S. Natl. Mus., Proc. 40: 192. 6,9. 



Mesochorus nigrisignus Viereck, 1911. U. S. Natl. Mus., Proc. 40: 192. 9. 



Mesochorus concinnatus Wilkinson, 1929. Bui. Ent. Res. 20: 105. 6, 9. Uncertain syn.; 

 placed as a synonym of discitergus by Dasch (1971); placed instead as a synonym of M. 

 omatus Wilkinson (an Ethiopian species) by Townes and Townes (1973) who 

 erroneously stated that "omatus is listed erroneously [by Dasch] as a synonym [of 

 discitergus] and the record from South Africa is based on a misdetermined specimen of 

 omatus." 



Mesochorus narangae Uchida, 1930. Insecta Matsumurana 4: 129. 6, 9. 



Mesochorus facialis var. nigristemmaticus Uchida, 1931. Insecta Matsumurana 5: 158. 9. 



Mesochorus havrolenkoi Blanchard, 1949. In Havrolenko and Winterhalter, Insectos del 

 Parque Nac. Nuhuel Huapi, Buenos Aires, p. 48. Nomen nudum (figure only). 



Taxonomy: Dasch, 1971. Amer. Ent. Inst., Mem. 16: 252-257. —Townes and Townes, 1973. 

 Amer. Ent. Inst., Mem. 19: 186. —Dasch, 1974. Amer. Ent. Inst., Mem. 22: 250-254. 



distentus Dasch. Eastern Wash. 



Mesochorus distentus Dasch, 1971. Amer. Ent. Inst., Mem. 16: 236. 6. 



divaricatus Dasch. Colo. 



Mesochorus divaricatus Dasch, 1971. Amer. Ent. Inst., Mem. 16: 225. cJ, 9. 

 dreisbachi Dasch. Que. w. to Alaska, s. to Ky., e. Kans., Utah, and n. Calif. 



Mesochorus dreisbachi Dasch, 1971. Amer. Ent. Inst., Mem. 16: 99. 6, 9. 

 ejuncidus Dasch. Western N. C, Colo., Ariz., B. C, Wash., Oreg. 



Mesochorus ejuncidus Dasch, 1971. Amer. Ent. Inst., Mem. 16: 182. 6,9. 



elongatus Dasch. Central and s.e. Ariz. 



Mesochorus elongattis Dasch, 1971. Amer. Ent. Inst., Mem. 16: 83. 6, 9. 



