376 Hymenoptera in America North of Mexico 



Type-species: Tryphon ephippmm Holmgren. By subsequent monotypy from 



inclusion by Morley, 1911. 

 Otitochilus Foerster, 1868. Naturh. Ver. Rheinlande, Verb. 25: 203. 



Type-species: Tryphon trochanteratus Holmgren. By subsequent monotypy from 



inclusion by Woldstedt, 1877 (1876). 



This subgenus is Palearctic. 



Genus TRYPHON Subgenus SYMBOETHUS Foerster 



Symboethus Foerster, 1868. Naturh. Ver. Rheinlande, Verb. 25: 204. 



Type-species: Tryphon exclamationis Gravenhorst. Desig. by Viereck, 1914 from 

 two species included by Morley, 1911. 

 Quadrigana Davis, 1897. Amer. Ent. See, Trans. 24: 280. 



Type-species: Tryphon americanus Cresson. By subsequent monotypy from 

 inclusion by Davis, 1898 (1897), p. 281. 

 alaskensis Ashmead. Sask., Alta., Alaska, Wash. 



Polyblastus glacialis Ashmead, 1902. Wash. Acad. Sci., Proc. 4: 213. 9. 

 Tryphon alaskensis Ashmead, 1902. Wash. Acad. Sci., Proc. 4: 215. 9 . 

 americanus Cresson. Que. s. to Pa., w. to Minn, and Kans. 



Tryphon americanus Cresson, 1864. Ent. Soc. Phila., Proc. 3: 276. i. 

 Tryphon affinis Cresson, 1864. Ent. Soc. Phila., Proc. 3: 277. 9. 

 communis Cresson. N. S. s. to Pa., w. to Alaska, Alta., and N. Mex. Two or more species may 

 be confused under this name. 

 Tryphon communis Cresson, 1868. Amer. Ent. Soc, Trans. 2: 103 3,9. 

 Tryphon clypeatus Provancher, 1875. Nat. Canad. 7: 309, 311. 6. The alternate spelling 



"clypealis" appeared on p. 309. 

 Tryphon pedic2ilahis Provancher, 1886. Addit. Corr. Faune Ent. Canada Hym., p. 102. 6. 

 Tryphon communis var. atripes Davis, 1898 (1897). Amer. Ent. Soc, Trans. 24: 282. 6,9. 

 Grypocentnis nifiterminalis Hall, 1919. Psyche 26: 157. 9. 

 foraminatus Townes, N. status. S. D. s. to Colo., w. to B. C. and Calif. The egg of this species 

 is more elongate than that of communis. 

 Tryphon (Symboethus) communis foraminahis Townes, 1950 (1949). In Townes and 

 Townes, Ent. Soc. Amer., Ann. 42: 442. 6,9. 



illotus Townes. Wash. 



Tryphon (Symboethus) illotus Townes, 1950 (1949). In Townes and Townes, Ent. Soc 

 Amer., Ann. 42: 443. 6 . 



mystax Townes. N. B. w. to Alaska, s. to N. H., Colo., and Wash. 



Tryphon (Symboethus) mystax Townes, 1950 (1949). In Townes and Townes, Ent. Soc. 

 Amer., Ann. 42: 437. 6,9. 



rempeli Townes. Sask., Wash., Oreg. 



Tryphon (Symboethus) rempeli Townes, 1950 (1949). In Townes and Townes, Ent. Soc. 

 Amer., Ann. 42: 435. 6,9. 

 seminiger Cresson. N. S. w. to Alaska, s. to Md., III., N. Mex., and CaUf. 

 Tryphon seminiger Cresson, 1864. Ent. Soc. Phila., Proc. 3: 278. 9. 

 Metopius terminalis Ashmead, 1890 (1889). U. S. Natl. Mus., Proc. 12: 438. 6. 

 townesi Walkley. Que., Maine, N. H., Vt., Mich., Colo. 



Tryphon (Symboethus) humeralis Townes, 1950 (1949). In Townes and Townes, Ent. Soc. 



Amer., Ann. 42: 438. cJ, 9. Preocc. by Gravenhorst, 1829. 

 Tryphon (Symboethus) townesi Walkley, 1958. In Krombein, et al., U. S. Dept. Agr., Agr. 

 Monog. 2, Sup. 1, p. 41. N. name for humeralis Townes. 

 viator Townes. Que. w. to Alta., s. to Pa., Mo., and Colo. 



Tryphon (Symboethus) viator Townes, 1950 (1949). In Townes and Townes, Ent. Soc. 

 Amer., Ann. 42: 443. cJ, 9. 



