AMERICAN HYMENOPTERA. 203 



femora swollen, brownish, their coxae beneath with a large sub- 

 obtuse tooth at tip ; abdomen subdepressed, fusiform, indistinctly 

 punctured ; second, third and fourth segments ferruginous, some- 

 times also apex of postpctiole; gastrocoeli very transverse, deep. 

 Length 9 .35 inch. 



3. hebrus. 



Ichneumon hebrus, Cress. Trans. Am. Ent. Soc. i, p. 305, % 9 . 

 Phi/gnJmon insignis, Prov. Nat. Can. vii, p. 179. 

 Hab. — Can., N. Y., 111. Same form as the preceding, but with 

 larger head ; black, with legs except tips of posterior femora and of 

 their tibiae, and the abdomen except three apical segments, ferrugin- 

 ous: flagellum with a broad whitish annulus, and three basal joints 

 reddish ; head and thorax closely and strongly punctured ; wings faintly 

 dusky ; posterior coxae; with a short obtuse tooth beneath near tip ; 

 abdomen strongly punctured on second and third segments, postpetiole 

 and apical segments smooth ; gastrocoeli very transverse nearly meet- 

 ing on disc; the % is more slender, with longer antennse, which are 

 entirely black except white annulus on flagellum ; the femora and 

 posterior tibiie are black. Length % 9 .36 — .40 inch. 



4. Hebe. 



Ji hneujuoH Ilebe, Cress. Trans. Am. Ent. Soc. i, p. 30G, 9 . 

 JIdb. — Ct., N. Y., 111. Much smaller than hebrus and more slender 

 in form ; black, shining; mandibles except tips, and base of flagellum 

 yellowish; flagellum with a narrow whitish annulus; tegula; whitish; 

 legs except posterior knees and tips of their tarsi, and segments two 

 to four of abdomen, yellowish-ferruginous ; wings hyaline; legs sub- 

 robust, posterior coxae beneath with a large acute tooth at tip ; gastro- 

 coeli very transverse. Length 9 -23 — .25 inch. 



5. decoloratus, n. sp. 



9. — Hlaek; face, clypeus, posterior orbits, antennte at base and beneatli, 

 disc of mesothorax, spot on scutellum, sides of thorax, legs, and segments one 

 to four of abdomen, ferruginous; a white annulus on flagellum ; antennae long 

 and slender; head broad, cheeks swollen: metathorax obliquely truncate be- 

 hind; wings subhyaline; legs slender, simple, posterior femora and tips of 

 their tibiae blackish; abdomen narrow, subfusiforin, shining, impunctured, base 

 of second segment broadly transversely depressed. Length ,30 inch. 



//a/..— White Mts., N. H. (Morrison). 



6. discus, n. sp. 



%. — Slender, shining, black; fane, clypeus, mandibles, scape beneath, some- 

 times a spot beneath eyes, and on tip of scutellum, tegulse, four anterior coxse, 

 and trochanters, yellow; flagellum beneath pale testaceous; legs and abdomi- 



