ODYNERUS. 225 



species its place with perfect certainty in the subdivisions of this 

 group. 



C. Form very wide, short and depressed, first segment very wide,; 

 its anterior face sessile, in the form of a, wide triangle; its 

 superior face very short, 3-4 times as wide as long. 



a. Wings wholly obscure, violet. 



59. O. TilloSlBS Sauss. — 0. Antucensi statura, formis et facie affinis, s^d 

 pronoto et capite angustioribus ; crassus, ater, velutinus, valde nigro 

 liirsutus ; metanoti excavatione polita ; abdomine sessili ; primo s^g- 

 mento lato, breviter truncato; secundo subtus basi euuineiite plicato ; 

 mandibulis, antenuis et pedibus rufis ; bis basi et fere usque ad g^nua 

 nigris ; tegulis nigris, rufo-maculatis ; abdominis vittis 2 luteis angustis ; 

 alis infuscatis, violascentibus. — Longit. 15 ram. 



9« Clypeo nigro, lzevi, apice punctato, pauluru emarginato. — % . . . . ? 



Odyn. villosus Sauss. Vespides, I, 165, 53, 9 (1852).— Ga*'s Hist, fisic 

 de Chile Zool. VI, Suppl. 563, 4 (185^2). 



This may be a variety of 0. obscuripennis. 

 Bab. Chili. 



45©. O. ©"bscuripeiiiiis Spin. — 0. villoso similis, sed major, tborace 

 rugoso, granulato; ater, villosus ; antenuis nigris, scapo rufo ; pedibus 

 rufis vel nigrescentibus, basi nigris ; abdomine fasciis 2 luteis. — Long, 

 18 mm. 



Odyn. obscuripennis Spin, in Gay's Hist, fisic de Chile Zool. VI, 259, 4, 

 9 (1851).— Sauss. Vespides, I, 165, 52; III, 22S. 



Odyn. Coquimbensis Sauss. in Cay's Hist, fisic de Chile Zool. VI,. Suppl. 

 501, 1 (1852). 



Ha,b. Chili (Type in the Paris Museum). 

 This species not being in my possession, I cannot give a com- 

 plete diagnosis of it. 



b. Wings ferruginous with the apex fusco-violaceus or fuscous, and the 



anterior margin rufous. 



iit. O. Antuceiisis Sauss. — Crassus, velutinus, pilis nigris longissimis 

 valde liirsutus. Corpus depressum : thoraoe quadrato, teuuiter punc- 

 tato; posUscutello et metanoto vertioaliter trunoatis, hojus facie postioa 

 trigonali, fere plana, parum late excavata, ut reliquus thorax velutino- 

 rugulosa, oanthis obtusis marginata. Abdomine lato, depresso, Bessili ; 

 primo segmento antioe valde truncato, faciera antioam trigonal«m et 

 faoiem superam brevissimam et latissimara praebente; faoiemni illarura 

 concursus canthuna transveisum effioiens; faoie Bupera buIoo partita; 

 15 



