Sphecoidea of Nebraska 49 
Males 2: Harrison, August 4, 1908 (C. H. Gable), and August 
9g, 1908 (R. W. Dawson) ; visits flowers of Helianthus sp. 
Oxybelus fastigatus Mickel. 
1916. O-xybelus fastigatus Mickel, Trans. Amer. Ent. Soc., XLII, 
D. 433- 
Males 5, females 1: Ogallala (1) and Harrison (5); June 24 
to August 9; visits flowers of Helianthus sp. 
Oxybelus delicatus Mickel. 
1918. O-xybelus delicatus Mickel, Univ. Nebr. Studies, XVII, p. 322. 
Males 1: Mitchell, July 17, 1916 (C. E. Mickel) ; visits flowers 
of Melilotus alba. 
Oxybelus laetus Say. 
1837. Oxybelus laetus Say, Bost. Journ. Nat. Hist., 1, p. 375. 
1889. Oxybelus laetus Robertson, Trans. Amer. Ent. Soc., XVI, p. 82. 
Females 4: Rulo (1) and Omaha (3) ; June 29 to August 17; 
visits flowers of Trifolium pratense. 
Oxybelus packardi Robertson. 
1889. O-xvybelus packardi Robertson, Trans. Amer. Ent. Soc., XVI, 
p. 80. 
Males 16: Rulo (2), Omaha (1), Bridgeport (3), Mitchel 
(6), Glen (1) and Harrison (3); June 30 to August 20; visits 
flowers of Solidago canadensis, Melilotus alba and Helianthus 
sp. 
Oxybelus striatus Baker. 
1896. O-xybelus striatus Baker, Ent. News, VII, p. 60. 
Males 10: Omaha (5), Glen (4) and Monroe Canyon (1); 
July 30 to August 24; visits flowers of Aster multiflorus and 
Solidago canadensis. 
Oxybelus cornutus Robertson. 
1889. .Oaybelus cornutus Robertson, Trans. Amer. Ent. Soc., XVI, 
p. 80. 
1908. Oxwybelus cornutus H. S. Smith, Univ. Nepr. Strupies, VIII, 
p. 407. 
Males 36, females 24: Omaha (1), Broken Bow (1), Bridge- 
port (2), Mitchell (32), Glen (15), Harrison (7) and Monroe 
Canyon (1); July 11 to August 28; visits flowers of Chamae- 
367 
