294 Hymenoptera in America North of Mexico 



Taxonomy: Muesebeck, 1936. U. S. Dept. Agr., Misc. Pub. 241, p. 13-14. — Capek and Snoflak, 

 1959. Acta Soc. Ent. Cech. 56: 344. -Shenefelt, 1969. Hym. Cat., part 4, p. 125-129 (cat. 

 World spp.). 

 pulvillicornis Walley and MacKay. Que., Ariz. 



Streblocera pidvillicomis Walley and MacKay, 1963. Canad. Ent. 95: 999. 9. 



Genus SYNTRETUS Foerster 



Syntretus Foerster, 1862. Naturh. Ver. Rheinlande, Verh. 19:251. 

 Type-species: Microctonus vemalis Wesmael. Orig. desig. 



Host records indicate that species of this genus are parasitic on adult Ichneumonidae and 

 Bombidae. 



Taxonomy: Muesebeck, 1936. U. S. Dept. Agr., Misc. Pub. 241, p. 22-25. —Shenefelt, 1969. 

 Hym. Cat., part 4, p. 130-133 (cat. World spp.). 



Biology: Cole, 1959. Ent. Monthly Mag. 95: 18-21. — Alford, 1968. Roy. Ent. Soc. London, 

 Trans. 120: 375-393. 

 brevicornis Muesebeck. Pa., Del., N. C, Wis., 111. 



Snytretus brevicornis Muesebeck, 1936. U. S. Dept. Agr., Misc. Pub. 241, p. 24. 9, 6. 



venustus Muesebeck. Ala. 



Syntretus venustus Muesebeck, 1936. U. S. Dept. Agr., Misc. Pub. 241, p. 23. 9. 



vigilax (Provancher). Que., N. H., N. Y., Ont., Minn., Colo., Calif. 

 Gamosecus vigilax Provancher, 1880. Nat. Canad. 12: 167. 9, d. 



NoMEN Nudum in Syntretus Foerster 



Microctonus americanus Ashmead, 1900. In Smith, Insects N. J., p. 588 (teste Shenefelt, 1969. 

 Hym. Cat., part 4, p. 130). 



Genus WESMAELIA Foerster 



Wesmaelia Foerster, 1862. Naturh. Ver. Rheinlande, Verh. 19: 251. 

 Type-species: Wesmaelia pendula Foerster. Orig. desig. 



The single species in this genus is parasitic on nymphs and adults of Nabidae. 



Taxonomy: Muesebeck, 1936. U. S. Dept. Agr., Misc. Pub. 241, p. 20-21. -Shenefelt, 1969. 

 Hym. Cat., part 4, p. 134-135 (references). 

 pendula Foerster. Holarctic. Host: Nabis altematus Parshley, N. americofenis Carayon, N. 

 capsifomiis Germar. 

 Wesmaelia pendula Foerster, 1862. Naturh. Ver. Rheinlande, Verh. 19: 251. 

 Wesmaelia cremasta Marshall. 1872. Ent. Monthly Mag. 8: 257. 9 . 

 Wesmaelia americana Myers, 1917. U. S. Natl. Mus., Proc. 53: 293. 9,6. 

 Wesmaelia asiatica Shestakov, 1932. Zool. Anz. 99: 261. 



Biology: Hendrick and Stern, 1970. Ent. Soc. Amer., Ann. 63: 389. — Stoner, 1973. Ent. Soc. 

 Amer., Ann. 66: 471-473. 



Tribe COSMOPHORINI 



Host records indicate that species are solitary endoparasites of adult Coleoptera. This tribe is 

 composed of one Holarctic genus which has been placed in various groups, including its own sub- 

 family. Most authors have placed it in the Euphorinae where it probably represents the most 

 highly specialized group of the Braconidae. 



Genus COSMOPHORUS Ratzeburg 



Cosmophorus Ratzeburg, 1848. Ichn. d. Forstins., v. 2, p. 71. 



Type-species: Cosmopkonis klugii Ratzeburg. Monotypic. 

 Cosmophorus subg. Cosynophorinus Viereck, 1925. Canad. Ent. 57: 73. 



Type-species: Cosmophorus hopkinsii Ashmead. Desig. by Muesebeck and Walkley, 

 1951. 



