ane 
The Sphegoidea of Nebraska 23 
ocelli; the pygidium has well-defined lateral ridges and is es 
tinctly and rather coarsely punctured. Looks very much like 
some of the darker specimens of tricolor, but may easily be dis- 
tinguished by the width of face, shape of clypeus, and color of 
metathorax and first abdominal segment. 
Hoplisoides laminiferus (Fox). 
1895. Gorytes laminiferus Fox, Proceedings of the Academy of Nat- 
ural Sciences of Philadelphia, p. 532. 
Two males of this species were collected at West Point, on 
June 25 (P. R. Jones). The wings are not yellow, but are dark, 
and the marginal cell is not appreciably darker than the remain- 
ing portions of the wing. Fox’s description states that the ven- 
tral segments 2-4 are entirely yellow, but in the specimens be- 
fore me they have only a narrow apical band of that color. This 
species is easily separated from the other members of the genus 
found in Nebraska by the dark wings and peculiar habitus, which 
more resembles Pseudoplisus than Hoplisoides. It looks super- 
ficially very much like P. phaleratus. 
Genus Hoplisus Lepeletier 
SYNOPSIS OF THE SPECIES 
Posterior face of metathorax almost smooth; triangular area of meta- 
notum only basally striated; metathorax with two yellow spots, 
simillimus 
Posterior face of metathorax coarsely reticulate; triangular area of 
metanotim strongly ridged throughout... .,...0..5 5.00000 s es esee. 1 
1. Tubercles and supraclypeal area black; yellow of inner eye mar- 
gins narrow; metathorax with two yellow spots; apical 
abdominal segments without yellow............... elegantulus 
1. Tubercles and supraclypeal area yellow; yellow of inner eye mar- 
gins broad; metathorax without yellow spots; apical ab- 
dominal segments yellow dorsally................ albosignatus 
Hoplisus simillimus (F. Smith). 
1856. Gorytes simillimus F. Smith, Catalogue of Hymenoptera in the 
British Museum, iv, p. 367. 
1867. Gorytes ephippiatus Packard, Proceedings of the Entomological 
Society of Philadelphia, vi, p. 426. 
1895. Gorytes simillimus Fox, Proceedings of the Academy of Natural 
Sciences of Philadelphia, p. 536. 
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