AMERICAN HYMENOPTERA. 179 



167. lascivus, Cress. Trans. Am. Ent. Soc. i, p. 309, S . 



Ilah. — Illinois. A very distinct and prettily marked species; black 

 with head and thorax elaborately ornamented with white; legs and 

 abdomen ferruginous, the latter with first and second segments black 

 and a white spot on each apical corner of four basal segments; 

 coxae mostly white; antennae long and slender with white annulus; 

 mesothorax with two white stripes; wings clear, etc. Length S ,38 

 inch. 



1G8. funestus, Cress. Proc. Ent. Soc. Phil, iii, p. IGG, 9 . 

 hoesitans, Prov. Nat. Can. vii, p. 80, 9 • 



Hah. — Can., N. H., IMass., Pa., Va., 111. A robust, medium sized 

 species, with head and thorax more or less black, abdomen ferruginous, 

 scutellum yellowish, whitish annulus on antennae, clear or subhyaline 

 wings, black legs with tibiae except tips and tarsi ferruginous; an- 

 tennEe stout, with thick-set joints. One specimen from 111. has a small 

 yellow spot on each side of second abdominal segment. The head is 

 sometimes entirely ferruginous, but generally, the occiput is black ; 

 the mesothorax is often varied with ferruginous. Length 9 .37 — 

 .47 inch. 

 1G9. maius, Cress. Trans. Am. Eut. Soc. i, p. 307, 9 . 



Hah. — Mass., N. C. Very near yimes/i<s, but with more slender an- 

 tennae and a whitish spot at tip of abdomen. Length 9 -30 inch. 



170. ^A^. -album, Cress. Trans. Am. Ent. Soc. i, p. 309, % 9 . 

 hclinna \y. -a/hum, Cress. Proc. Ent. Soc. Phil, iii, p. IDl, % . 

 Ischnus variegahis, Prov. Nat. Can. vii, p. 250, S . 



Hah. — Can., N. II., Mass. The 9 of this species is elongate, robust, 

 black antennae, head and thorax, and ferruginous legs and abdomen; 

 spots on face and clypeus, orbits, annulus on antennae, collar, upper 

 margins of prothorax, sometimes a spot on disc of mesothorax, scu- 

 tellum and a W-shapcd mark on metat borax, sometimes reduced to 

 two spots or entirely wanting, white; wings clear; postpetiole smooth, 

 gastrocoeli subobsolete. Length .50 — .55 inch. 



The S is long and slender with abdomen and legs fulvous; head 

 except vertex and occiput, scape beneath, collar, upper margins of 

 prothorax, spot on disc of mesothorax, scutellum, spot behind, tegulae, 

 line beneath, pleura more or less, a "W -shaped mark on metathorax, 

 coxae and trochanters and tip and sides of first abdominal segment, all 

 white or yellowish-white; antenute long, black above with broad pale 

 annulus, beneath more or less yellowish ; first abdominal segment ex- 

 cept tip and sides black, remaining segments more or less varied with 



