Sphecoidea of Nebraska 79 
Serta <OTOOV Ee PrGROIe ols oa eae ox hedated fates S Woe as ewes 12 
g. Third cubital cell not broader on the radial nervure than the distance 
between the second transverse cubital and second recurrent nervures 
RRMA EE MU ESL QUAL WUE fa oo och hod pnd ava.e Sum elarce pala Sree 0,0) ward he lucae 
Third cubital cell broader on the radial nervure .................. 10 
10. Mandibles with two teeth; petiole black; propodeum with long white 
MeN TCI APOPE ONS hee x, Te Ue foi CoS aia dine a, lle le Grave ei eG aztecum cinereum 
Mim ainleG waAthintlree? TEETH 25 .-5)ije.c Sieve viele age cerelpwieielecclatergicve elece cusatete II 
11. Legs black, abdomen black; pubescence of thorax griseous ....harrist 
Legs ferruginous, adbomen more or less so; pubescence of thorax 
CEvG AGN eit « 6, LAS ee ake es aR Oa Dae one aa ge Ws Re ee Eine dee RL elegans 
12. Abdomen and legs more or less ferruginous; pubescence of thorax 
Parad UIA Ee OLCLG Talore vous fecs or teeek | cen sthene ev enec ota areas a'e ede otane tere er eyes ichneumoneum 
Entirely black, with black pubescence; wings black, violaceous, 
pennsylvanicum 
Chlorion cyaneum aerarium Patton. 
1879. Chlorion aerarium Patton, Can. Ent., XI, p. 133. 
1906. Chlorion (Chlorion) cyaneum aerarium Fernald, Proc. U. S. 
Nat. Mus., XXXI, p. 317. 
1908. Chlorion cyaneum H. S. Smith, Univ. Nese. Stupies, VIII, 
P. 332. 
Males 26, females 29: Omaha (23), Louisville (16), Lincoln 
(3), North Platte (2), Haigler (4), Halsey (3) and Mitchell 
(3); July 14 to September 8; visits flowers of Chamaecrista 
fasciculata and Dicrophyllum marginatum. 
Chlorion laeviventris (Cresson). 
1865. Sphex laeviventris Cresson, Proc. Ent. Soc. Phil., TV, p. 463. 
1906. Chlorion (Palmodes) laeviventris Fernald, Proc. U. S. Nat. 
Mus., XXXI, p. 318. 
Males 1, females 1: Halsey (2); July 29, 1912, and August 
go, 1912)( J.T. Zimmer). 
Chlorion atratum (LePeletier). 
1845. Sphex atrata LePeletier, Hist. Nat. Insectes, Hymen., III, p. 
335: 
1906. Chlorion (Priononyx) atratum Fernald, Proc. U. S. Nat. Mus., 
XXXI, p. 338. 
Males 197, females 118: Rulo (2), South Sioux City (4), 
Omaha (23), Union (1), Ashland (1), Louisville (25), South 
Bend (6), Lincoln (86), Cedar Bluffs (9), Maskell (8), Con- 
397 
