130 Clarence E. Mickel 
Cerceris compacta Cresson. : ; 
1865. Cerceris compacta Cresson, Proc. Ent. Soc. Phil., V, p. 127. 
1912. Cerceris compacta Banks, Ann. Ent. Soc. Amer., V, p. 17. 
Males 3, females 2: Omaha (3), Lincoln (1) and Bridgeport 
(1); June 17 to August 13; visits flowers of Melilotus alba, 
Chamaecrista fasciculata and Asclepias incarnata. 
Cerceris flavofasciata H. S. Smith. 
1908. Cerceris flavofasciata H. S. Smith, Univ. Nese. Stupies, VIII, 
p. 364. 
Males 9, females 5: Rulo (1), Child’s Point (2), Omaha (1), 
South Bend (7), Lincoln (1), Maskell (1) and Monroe Canyon 
(1); June 30 to August 20; visits flowers of Melilotus alba, 
Ceanothus americanus and Amorpha canescens. 
Cerceris dentifrons Cresson. 
1865. Cerceris dentifrons Cresson, Proc. Ent. Soc. Phil., V, p. 124. 
1912. Cerceris dentifrons Banks, Ann, Ent. Soc. Amer., V, ‘p. 18. 
Females 1: South Sioux City, August 3, 1912 (L. T. Williams). 
Cerceris clypeata Dahlbom. 
1845. Cerceris clypeata Dahlbom, Hymen. Eur., I, pp. 221 and 500. 
1865. Cerceris clypeata Cresson, Proc. Ent. Soc. Phil., V, p. 114. 
1912. Cerceris clypeata Banks, Ann. Ent. Soc. Amer., V; p. 18. 
Males 51, females 9: Rulo (2), Child’s Point (3), Omaha 
(29), Louisville (1), South Bend (4), Meadow (1), Lincoln (7), 
Tekamah (1), West Point (2), South Sioux City (2), Maskell 
(1), Glen (4) and Warbonnet Canyon (1); June 26 to August 
25; visits flowers of Melilotus alba, Chamaecrista fasciculata, 
Solidago canadensis, Teucrium canadense and Medicago sativa. 
I have not restricted this species more than Cresson or Packard. 
Clypeata as designated by Banks has not been taken in the state. 
Practically all the female specimens at hand have the yellow 
band on-the second segment emarginate in front; two or three 
have small yellow spots on the first segment; one or two have 
small yellow spots on the metanotum; two or three have the 
enclosed space on the metanotum mostly granulate, others have it 
more or less striated; the projection -of the clypeus-varies from 
about as long as broad, to very much longer than broad. AJ 
448 
Cpt: pein 2 
