98 Clarence E. Mickel 
Tachytes columbiae Fox. 
1892. Tachytes columbiae Fox, Trans. Amer. Ent. Soc., X1X, p. 241. 
1893. Tachytes columbiae Fox, Proc. Acad. Nat. Sc. Phil., p. 502. 
Males 1, females 1: South Bend (2); July 15, 1914 (E. M. 
Partridge), on Melilotus alba. 
Tachytes crassus Patton. 
1880. Tachytes crassus Patton, Proc. Bost. Soc. Nat. Hist., XX, p. 
393. 
1893. Tachytes crassus Fox, Proc. Acad. Nat. Sc. Phil., p. 502. 
Males 7, females 1: Louisville (1), Meadow (3), Lincoln (3) 
and West Point (1) ; July 8 to July 31; visits flowers of Asclepias 
sp. and Mentha canadensis. 
Tachytes pepticus (Say). 
1837. Lyrops peptica Say, Bost. Journ. Nat. Hist., I, p. 371. 
1892. Tachytes pepticus Fox, Trans. Amer. Ent. Soc., XIX, p. 242. 
1913. Tachytes pepticus Williams, Kans. Univ. Sc. Bull., VIII, p. 156. 
Males 152, females 22: Omaha (20), Louisville (6), South 
Bend (8), Lincoln (21), Malcolm (1), West Point (1), Carns 
(4), Curtis (1), Culbertson (1), Haigler (1), Dundy county (4), 
Halsey (8), Bridgeport (2), Mitchell (36), Gordon (1), Craw- 
ford (1), Glen (20), Warbonnet Canyon (4), Monroe Canyon 
(28) and Bad Lands (1); June to September 13; visits flowers 
of Melilotus alba, Asclepias syriaca, Chamaecrista fasciculata, 
Solidago canadensis, Asclepias incarnata, Solidago glaberrima, 
Asclepias verticillata, Ceanothus americanus, Solidago rupestris, 
Euphorbia marginata, Verbena sp., Ratibida sp., Sagittaria lati- 
folia, Cleome serrulata, Monarda sp. and Petalostemum sp. 
Tachytes fulviventris Cresson. 
1865. Tachytes fulviventris Cresson, Proc. Ent. Soc. Phil., IV, p. 466. 
1892. Tachytes fulviventris Fox, Trans. Amer. Ent. Soc., XIX, p. 243. 
1913. Tachytes fulviventris Williams, Kans. Univ. Sc. Bull., VIII, 
p. 155. 
Males 8, females 38: Omaha (2), South Bend (1), Ashland 
(4), Carns (1), Curtis (1), Culbertson (1), Haigler (3), Ogal- 
lala (1), Halsey (1), Mitchell (18), Gordon (2), Glen (8), Har- 
rison (1), Pine Ridge (1) and Monroe Canyon (3); June 24 to 
August 31; visits flowers of Chamaecrista fasciculata, Ratibida 
416 
