Sphecoidea of Nebraska 45 
5. Abdomen entirely black, shining, rather sparsely punctured, with two 
Pane sWweakaspinles iON) CAC SIGer si <./iateee sieves aes 6.5a e018 6 bere cressont 
Abdomen more or less marked with yellowish or whitish, quite strongly 
punctured, with two to four strong spines on each side ........ 6 
6. Vertex. with a median tubercle; occiput strongly striato-punctate, 
cockerelli 
Vertex without a median tubercle; occiput strongly punctured but not 
Sais AL Cast EEE LSHIEL Uy tetra me ea OR cher abe Tohce sain dhe i's alae fagevaoie aie levotal tiebetSiahe 7 
7. Apical abdominal segments black; markings yellowish ........ incisura 
Three apical abdominal segments ferruginous; markings white, 
albomaculata 
Notoglossa frontalis (Robertson). 
1889. Oxybelus frontalis Robertson, Trans. Amer. Ent. Soc., XVI, 
p. 83. 
Males 15, females 4: Omaha (10), Lincoln (2), Fairmont (1), 
Broken Bow (5) and Glen (1); June 17 to October ; visits flowers 
of Solidago sp., Aster multiflorus and Dicrophyllum marginatum. 
Notoglossa abdominalis (Baker). 
1896. Oxybelus abdominalis Baker, Ent. News, VII, p. 158. 
Males 14, females 14; Omaha (2), West Point (1), Bridge- 
port (1), Glen (3) and Harrison (21); June 22 to August 21; 
visits flowers of Chamacecrista fasciculata, Gutierrezia sarothrae 
and Helianthus sp. 
Notoglossa emarginata (Say). 
1837. Oxybelus emarginatus Say, Bost. Journ. Nat. Hist., I, p. 375. 
1889. Oxybelus emarginatus Robertson, Trans. Amer. Ent. Soc., 
XVI, p. 84. 
1901. Notoglossa emarginata Robertson, Trans. Amer. Ent. Soc., 
XXVII, p. 204. 
Males 151, females 71: Rulo (1), Omaha (55), South Bend 
(1), Lincoln (4), Fairmont (2), West Point (7), Broken Bow 
(12), McCook (1), Imperial (2), Halsey (1), Bridgeport (5), 
Mitchell (29), Glen (86), Harrison (9), Monroe Canyon (4) 
and Sowbelly Canyon (1) ; June 20 to September 7; visits flowers 
of Chamaecrista fasciculata, Melilotus alba, Asclepias sp., Ver- 
nonia sp., Solidago serotina, Helianthus petiolaris, Cleome serru- 
Jata and Gutierresia sarothrae. 
363 
