1865.] 289 



base ; remaining segments gradually broader and subcompressed, the 

 apex obliquely truncate, tbe apical dorsal segment somewhat recurved; 

 ovipositor longer than the body, ferruginous, valves black. Length 9 J 

 lines; expanse of wings 12 J lines. 



One specimen. Readily recognized by the deep black color, with 

 antennas broadly annulate*! with pure white. 



Genus ODONTOMERUS. Grav. 



1. Odontomerus iEthiops, n. sp. 



Piceous-black, polished ; wings subhyaline, violaceous; legs pieeous ; ovipo- 

 sitor longer than the body, ferruginous. 



Female — Entirely piceous-black, polished ; head very finely punc- 

 tured, very dense on the face, clothed with a short, thin, dull yellowish 

 pubescence; (antennae broken off.) Thorax indistinctly punctured, 

 slightly pubescent; scutellum flatly elevated, closely punctured, with a 

 deep transverse excavation in front ; metathorax indistinctly sculptured, 

 with tolerably well-defined elevated lines, forming au elongate, irregular 

 central area, the extreme apex veiy abruptly truncate, smooth and 

 shining, and enclosed by a sharply defined carina ; tegulas pieeous. 

 Wings long, narrow, fusco-hyaline, paler at base, with a rather strong 

 violaceous reflection ; nervures and stigma black, the former brownish 

 at base. Legs robust, pieeous, the tibias and tarsi clothed with a very 

 fine, dense, appressed, brownish-sericeous pile ; the tooth on the poste- 

 rior femora beneath large and subacute. Abdomen elongate, robust, 

 subsessile or slightly subpetiolated, polished, delicately punctured, the 

 apex broad and truncate, subcompressed; basal segment twice broader 

 at tip than at base, rather deeply channelled about the middle ; oviposi- 

 tor longer than the body, ferruginous, valves pieeous, thickened at tips 

 and pale yellowish within. Length 6J lines; expanse of wings 10> 

 lines. 



. Male. — More slender and of deeper black than the female ; the an- 

 tenna? are two-thirds the length of the body, piceous-black ; the wings 

 are almost hyaline; the abdomen is rather slender, subcylindrical, and 

 almost petiolated, the first segment rugose, the second and third rather 

 densely punctured, the others smooth and polished. Length 61 lines; 

 expanse of wings 9 J lines. 



Two specimens. 



2. Odontomerus abdominalis, n. sp. 



Black; legs and abdomen, except base, rufo-ferruginous ; wings fusco-hya- 

 line, violaceous ; ovipositor as long as the body. 



Female. — Black, shining, indistinctly punctured, slightly pubescent ; 

 antennas nearly as long as the body, piceous-black. Thorax much as 



