106 Clarence E. Mickel 
Males 4, females 7: West Point (5), Bridgeport (1), Glen (1), 
Mitchell (2), Glen (1), Monroe Canyon (1) and Jim Creek (1) ; 
June 24 to August 4. 
Tachysphex mundus Fox. 
1893. Tachysphex mundus Fox, Proc. Acad. Nat. Sc. Phil., p. 531. 
Females 10: Omaha (3), West Point (1), Carns (3), Mitchell 
(1), Harrison (1) and Monroe Canyon (1) ; June to August 21; 
visits flowers of Euphorbia sp. and Chamaecrista sp. 
Tachysphex minimus (Fox). 
1892. Tachytes minimus Fox, Trans. Amer. Ent. Soc., XIX, p. 248. 
1893. Tachysphex minimus Fox, Proc. Acad. Nat. Sc. Phil., p. 532. 
1913. Tachysphex minimus Williams, Kans. Univ. Sc. Bull., VIII, p. 
173. 
Males 10: Omaha (1), West Point (8) and Ogallala (1) ; June 
24 to July 23; visits flowers of Chamaecrista fasciculata. 
Tachysphex erythraeus Mickel. 
1916. Tachysphex erythraeus Mickel, Trans. Amer. Ent. Soc., XLII, 
p. 415. 
Females 1: Warbonnet Canyon, June 6, 1901 (M. Cary), on 
Erysimum sp. 
Tachysphex nigrocaudatus Williams. 
1908. Tachysphex consimilis H. S. Smith, Univ. Nesr. Stunies, VIII, 
p. 382. 
1913. Tachysphex nigrocaudatus Williams, Kans. Univ. Sc. Bull., 
VIII, p. 167. 
Males 5: Glen (1) and Sowbelly Canyon (4); June 23 to 
August 20. 
Tachysphex angularis Mickel. 
1916. Tachysphex angularis Mickel, Trans. Amer. Ent. Soc., XLII, 
p. 416. 
Males 5: Sowbelly Canyon (5), June 23, 1911 (R. W. Daw- 
son). 
Tachysphex puncticeps H. S. Smith. 
1906. Tachysphex punctulatus H. S. Smith, Ent. News, XVII, p. 246 
(nec Kohl). 
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