The Sphegoidea of Nebraska 67 
5. Size smaller, 6-7 mm.; sculpture of metathorax much finer, striato- 
PEELC TULA Nant) ais setters cee haere tartan etd FiOS Aaa aie eae cei ok sees ee 6 
6. Mandibles with a quite strong tooth just back of apex; first 
segment of abdomen black except apex; second segment 
and sometimes base of third reddish; abdomen more ovate 
than the following, segments scarcely constricted; pygidial 
AN Samu InAL LONG eycals's Orslagc toast tecterh ai oreio eickae tans lalatiare ea ole unicincta 
6. Mandibles without a tooth or with only a very faint indica- 
tion of one; segments 2 and 3 of abdomen reddish; abdo- 
men with sides more nearly parallel, slightly constricted 
Et WCemaSCOTMEMESS i= settee tharcle sic mae toisersmrin erers7e aneties. atte proxima 
7. Petiole of abdomen distinctly longer than hind femur; flagellum 
strongly clavate, the basal joint rather distinctly dentate 
ere athuesstieh omer aieskh elm aul ote abe tiake Nek tists aia cla be varkis cressonu 
7. Petiole of abdomen not longer than hind femur.................. 3 
8. Abdomen elongate, clavate, Trypowxylon-like; enclosure of 
Inetanotuni, closely Srantilate bo. cis ve deh wales cine o's ote granulosa 
ar Abdomen otherwise shaped: otis. esgic cde eie sca ccisiae bale oe 9 
Ghalkeccy nore. Of, Ess teStaCeOUStwiei. vetacins sarees ec eer aes wleles wa eh unicincta 
abe MeriEA Rely, «Rett psc ce SEs hela at alate’ b a adic meer oreo wes wot te proxima 
Mimesa granulosa ( Fox). 
1898. Psen granulosus Fox, Transactions of the American Entomolog- 
ical Society, xxv, p. 15. 
The female of this species, which I believe is heretofore un- 
known, does not differ essentially from the male, excepting in 
the sexual characters. This species and the following one ‘are 
peculiar in that they have no flattened pygidial area, the apical 
segment being cone-shaped. They form a distinct group. Eleven 
specimens of this species have been taken at Glen, August 12 to 
19 (P. R. Jones, H. S. Smith). Very distinct in the shape and 
coloration of the abdomen and the lack of a pygidial area. 
Mimesa conica, n. sp. 
9. Length 5-7 mm. Face and clypeus densely clothed with silvery 
pubescence, that on the vertex sometimes with a yellowish tinge. Clypeus, 
front, vertex, and occiput all with medium-sized close punctures, those on 
the vertex being somewhat the closest; punctures of the cheeks apparently 
arranged in striae; front distinctly tuberculate between the antennae; pos- 
terior ocelli about as far apart as the distance from them to the nearest 
eye-margin, each with a distinct cicatrix just behind and lateral to it; 
scape short, black, and closely punctured, flagellum pale testaceous be- 
neath, darker above, joints 2-6 strongly produced beneath, almost ser- 
rate; clypeus strongly produced and rounded out anteriorly; mandibles 
389 
