ODYNERUS. 223 



Odynerus labiatus Haliday, Trans. Linn. Soc. XVII, 323 (1837). — Sauss. 



Vespides, III, 228. 

 Odynerus Lachesis Lep. St. Farg., Hymenopt, II, 667,44 (1841).— Sauss. 



Vespides, I, 164, 51, pi. xvii. fig. 5, J; III, 22S. 

 Odynerus marginic.ollis Spin, in Gay's Hist, fisica de Chile, Zool. VI, 



256,2 (1851). 



Bess. a. diff. — Differs from 0. humeralis in its coloration ; 

 in its narrower form, in its finely punctured thorax, not rugosely 

 shagreened, and in the little ventral tubercle which is not only a 

 wrinkle like- that of the 0. humeralis, but is quite tuberculiform 

 in the middle. In size it is much smaller. Differs from the 0. 

 tuberculiventris in its triple size; in the clypeus, 9 rufous, % 

 prolonged, narrow (almost an ellipse, lengthened and notched at 

 the end). 



Hab. Chili. 



55. O. TestitllS Sauss. — Niger, nigro-hirtns ; metanoto hebetato ; 

 abdomine sessili; secundo segniento subtus tuberculato; pronoti raar- 

 gine antico et vittis 2 abdominis, luteis ; antenuis nigris ; alis subfus- 

 cescentibus, costa basi subferrugiuea. Lougit. 13 mm. 



9 . Clypeo nigro, biangulato. 



% . Clypeo elongato, plauato, luteo, apice arcuatim ernarginato ; antennis 

 apice uuciuo rufo. 



Odynerus vestitus Sauss. Vespides, III, 252, 127, 9 (1854). 



Bess. a. diff. — Closely allied to 0. arcuatus and excipiendus, 

 but differs clearly in its 2d abdominal segment, tuberculate 

 beneath, and wider and longer than the first. In one specimen 

 the wings are slightly smoky and ferruginous. 



Hab. Chili. 



56. O. It 91 mi era lis Halid. — Validus, corpore lato, depresso, velutino, 

 thorace ubique rugose granulato, etiam in metanoti excavatione ; primo 

 segmento latiore, basi paulum petiolato ; dehino trigono-infundibulifor- 

 miter dilatato, valde punctato ; facie supera lata, sulco profundo partita ; 

 secundo segmento subtus basi transversim plicato-tuberculato. — Corpus 

 nigrum, pilis fulvis vel fnscis longissimis hirsutum ; mandibulis partim, 

 pronoto, tegulis pedibusque rufis ; abdomine fasciis duabus luteis; an- 

 tennis in diinidio basali rufis, in dimidio apicali nigris, tarsis apice ob- 

 scuris. Alis fusco-violaceis, costa et l>asi ferrngineis. — Longit. 20 m m. 



9- Clypeo nigro, subconvexo, Ijevi, apice subemarginato. 



% . Clypeo luteo argeuteo-piloso, ovato, valde bidentato ,■ )abro fusco, 



