Sphecoidea of Nebraska 35 
Wings fuscous, the cloud in the vicinity of radial cell darker; en- 
closure of propodeum with ro-12 well-separated ridges, denticulatus 
6. Last abdominal sternite bifid; first abdominal segments subpetiolate ; 
wings entirely fuliginous; antennae rufous ............. lamniferus 
Last abdominal sternite not bifid; first abdominal segment sessile; 
ager VIET WATE a GALI SOLS s.u's.s «avers cals» 06 dass o.a.ce gaits babe 7 
7. Fifth abdominal sternite armed on each side with a strong projection, 
confertus 
Fifth abdominal sternite not armed with a projection ............. 8 
eesti ana Ointa jomts simple beneath ..2.0.c.<, cc acswsacclesle oe 9 
Eighth and ninth joints of the flagellum with a prominence beneath 10 
9. Triangular area of propodeum distinctly striated; propodeum and first 
abdominal segment not red, last dorsal segment yellow...pygidialis 
Triangular area of propodeum smooth; propodeum and first abdominal 
SeeIMentaMmOre vO weSGuLeds ars faenited sanciah o.crealels « ve actimerneieie tricolor 
10. Clypeus with a bunch of long hairs in each lateral angle; yellow ab- 
dominal bands 2 and 3 suddenly broadened laterally. .microcephalus 
Clypeus with hairs in lateral angle not long nor in a bunch ........ II 
11. Wings fuscous, the cloud in the vicinity of the radial cell dark; pro- 
MoOCeuin withetwo yellow: “SHOES. sus cisicne Corete voce elle denticulatus 
Wings subhyaline, except the usual cloud in the vicinity of the radial 
cell; propodeum not marked with yellow ............... barbatulus 
Hoplisoides confertus (Fox). 
1895. Gorytes confertus Fox, Proc. Acad. Nat. Sc. Phil., p. 525. 
1908. Hoplisoides barbatulus H. S. Smith, Univ. Nese. Strunptes, VIII, 
p. 344, &. 
Males 6, panels 3: Glen (7), Pine Ridge (1) and Sowbelly 
Canyon (1); June 23 to August 20. 
The three female specimens have a median transverse row of 
dark, stiff hairs on the clypeus. Fox does not mention this char- 
acter in his description. Smith described these as the unknown 
female of barbatulus but this does not seem to be justified, and 
as they run in Fox’s table to confertus and agree with his de- 
scription of confertus except in the above character, they are 
placed here. 
Hoplisoides tricolor (Cresson). 
1868. Gorytes tricolor Cresson, Trans. Amer. Ent. Soc., I, p. 380. 
1895. Gorytes tricolor Fox, Proc. Acad. Nat. Sc. Phil., p. 526. 
Males 3, females 12: Mitchell (1), McCook (1), Glen (12) 
358 
