Sphecoidea of Nebraska 129 
Females 13: Omaha (4), Louisville (4), Lincoln (3) and 
Mitchell (2); July 21 to September 12; visits flowers of Meli- 
lotus alba, Asclepias syriaca, Asclepias verticillata, Symphori- 
carpos symphoricarpos, Euphorbia sp. and Lactuca pulchella. 
Cerceris venator Cresson. 
1865. Cerceris venator Cresson, Proc. Ent. Soc. Phil., V, p. 116. 
1908. Cerceris venator H. S. Smith, Univ. Nese. Sruptes, VIII, p. 
364. 
Males 48: Omaha (10), Louisville (3), South Bend (7), 
Meadow (2), Lincoln (16), Roca (2), Concord (1), Maskell 
(2), Culbertson (2) and Mitchell (3) ; June 24 to September 5; 
visits flowers of Asclepias syriaca, Asclepias incarnata, Chamae- 
crista fasciculata, Melilotus alba, Ceanothus americanus, Petalo- 
stemum candidum, Euphorbia marginata and Solidago glaber- 
rima. 
Cerceris frontata Say. 
1823. Cerceris frontata Say, West. Quart. Rep., II, p. 80. 
1912. Cerceris frontata Banks, Ann. Ent. Soc. Amer., V, p. 16. 
Male 1, females 2: Haigler (2), Lincoln (1); August 2 to 
August 20. 
Cerceris fumipennis Say. 
1837. Cerceris fumipennis Say, Bost. Journ. Nat. Hist., I, p. 381. 
1912. Cerceris fumipennis Banks, Ann. Ent. Soc. Amer., V, p. 17. 
Males 27, females 18: Rulo (4), Child’s Point (1), Omaha 
(11), Louisville (5), South Bend (13), Lincoln (4), Maskell 
(1), Glen (3), Warbonnet Canyon (1) and Sioux county (1) ; 
June 24 to September 12; visits flowers of Melilotus alba, As- 
clepias incarnata, Solidago glaberrima, Symphoricarpos symphori- 
carpos, Amorpha canescens, Ceanothus americanus and Cleome 
serrulata. 
Cerceris mandibularis Patton. 
1880. Cerceris mandibularis Patton, Proc. Bost. Soc. Nat. Hist., XX, 
p. 403. 
1912. Cerceris mandibularis Banks, Ann. Ent. Soc. Amer., V, p. 17. 
Females 2: Rulo, June 29, 1915 (E. M. Partridge) ; Omaha, 
July 11, 1914 (L. T. Williams). 
447 
