fe) Harry Scott Smith 
5. Size smaller, abdomen usually more black; thorax with pubescence 
longer and more sparse; tubercles usually not pubescent, 
bifoveolatum — 
5. Size larger, abdomen more red; thorax with short dense pu- ~ 
bescence; tubercles pubescent ............00eeeceeees thomae — 
6. Sixth abdominal segment with its ventral plate broadly 
excavated on its posterior margin............... bifoveolatum 
6. Sixth abdominal segment with its ventral plate not broadly 
EXCAVALERU fake SSH Gis Lace oa She goto belie Sale inlet ttol ee ee eae thomae 
v7. Stigmatal groove: rudimentary or absent... 0... 00.20 0.0 ome nee oes 8 
7)’ Stigmatal-’ groove’? PEESGne: .)/s.2 sue ole tienen) > ore Sinta le eader one ree 10 
8. Third cubital cell not broader on the radial nervure than the 
distance between the second transverse cubital and second 
recurrent nervures on the cubital nervures.......... :...lucae 
8. Third cubital cell broader on the radial nervure....:...... 9 
9. Legs black, abdomen black; pubescence of thorax griseous..... harrist 
9. Legs ferruginous, abdomen more or less so; pubescence of thorax 
golden ..... yaa Re BAS Sages NGS a cea eaten elegans 
10. Entirely black, with black pubescence; wings black, vio- 
MCE ONS ysl. BAT aid ee cere b Bain Oa ROS Op id eee EE pennsylvanicum 
10. Abdomen and legs more or less ferruginous; pubescence 
of thorax. bricht colden. a1. ee ichneumoneum 
Chlorion cyaneum Dahlbom. 
1843. Chlorion cyaneum Dahlbom, Hymenoptera Europaea, i, p. 24. 
1906. Chlorion (Chlorion) cyaneum H. Fernald, Proceedings of U.S. 
National Museum, xxxi, p. 313. 
Lincoln, August 26, 1905; Haigler, August 11, IgoI. 
Chlorion laeviventris (Cresson). 
1865. Sphex laeviventris Cresson, Proceedings of the Entomological 
Society of Philadelphia, iv, p. 463. 
1906. Chlorion (Palmodes) laeviventris H. Fernald, Proceedings of 
U. S. National Museum, xxxi, p. 318. 
: 
This species is recorded from Nebraska by H. T. Fernald in 
his monograph of the Chlorioninae, but I have no specimens of it. 
Chlorion atratum (Lepeletier). 
1845. Sphex atrata Lepeletier, Histoire Naturelle des Insectes, Hy- 
menoptera, ili, p. 335. 
1906. Chlorion (Priononyx) atratum H. Fernald, Proceedings of U. S. 
National Museum, xxxi, p. 338. : 
Very abundant throughout the entire state. The collection 
contains specimens from Sioux county, Dundy county, Holt 
332 
PE eee eee! ne 
