AMERICAN HYMENOPTERA. 185 



petiole smooth and polished, gastrocoeli obsolete; the mesothorax is 

 generally mostly fulvous. Length % .32 — .36 inch. 



198. soror, Cress. Proc. Ent. Soc. Phil, iii, p. 185, 9 . 



Hub. — Can., Mass., N. Y,, 111. Same size and color as residuus^ 

 but with the clypeus of usual shape, the apical margin not arcuated, 

 and the apical segment of the abdomen has a more or less distinct 

 yellow spot. 



199. utilis, Cress. Trans. Am. Ent. Soc. i, p. 311, % . 



. ILib. — Mass., Ct., N. Y. This is a small fulvous species, with short 

 broad face, orbits, tegulae, line before, scutellum and four anterior coxae 

 and trochanters, pale yellow; antennae fuscous above, without pale 

 annulus ; wings clear, iridescent. Length % .30 — .35 inch. 

 This is probably the % of soror. 



200. petulcus, Cress. Proc. Cal. Acad. 1877, 9 . 



Ilab. — California. Closely allied to soror but with the antennae 

 entirely ferruginous, and the apical segment of abdomen without 

 yellowish spot. Length 9 .20 inch. 



201. ? rutilus, Cress. Proc. Ent. Soc. Phil, iii, p. 169, 9 . 



Hub. — Virginia. A ferruginous species, the antennJB long, slender, 

 black, with white annulus on flagellum ; mouth, sutures of thorax, 

 scutellar region, tips of posterior tibiae and base of their tarsi black, 

 remainder of their tarsi and scutellum white; wings clear; meta- 

 thorax with two prominent tubercles. Length 9 -"l^ inch. 



This looks much like a Cri/ptus the ovipositor being longer than 

 is usual in Ichneumon ; it seems intermediate between the latter and 

 Hopl!sme)ms. 



lIOPL,I^IUENUf§i, Grav. 

 Body black, immaculate. 

 Legs black and yellow. 



Posterior tibire fuscous 1. flavitarKi!^. 



Posterior tibife and tarsi entirely bright yellow. 2. iiioriilllN. 



Legs fulvous or ferruginous .3. pac'iliciis. 



Body black; segments 1 — 3 of abdomen and femora ferruginous; soutellura 

 and tarsi white 4. iiiClitellatus. 



1. flavitarsis. 



TrtxjHs Jiuvitursis, Cress. Proc. Ent. Soc. Phil, iv, p. 204, % . 

 Huh. — Colorado. Slender, black; face, clypeus and tips of tarsi 

 white; four anterior tibiae and base of tarsi yellowish ; four anterior 

 femora, posterior tibitc and basal joint of their tarsi fuscous; wings 

 uniformly fuliginous. Length % .53 inch. 



TRANS. AMER. ENT. SOC. VI. (25) JULY, 1877. 



