2'2'2 HYMENOPTEEA OF AMERICA. [PART I. 



9 . Clypeo nigro, apice biangulato. 



%. Clypeo fere pentagonali, luteo, bidentato ; antennarum scapo superne 



nigro, subtus flavo ; flagello apice llavescente ; pedibus rlavo-variis. — 



Variat. Antennis supra nigrescentibus. 



Eumenes tuber culivenlris Spin., Gay's Hist, fisica de Chile, Zool. VI, 267, 

 2 (1851). 



Odynerus iuberculicenlris Sauss. Vespides, I, 162, 49; III, 227. 



In the male, the femora are black, with rufous knees and with 

 a yellow line ; the tibia? are yellow on their anterior side. 



Reus. a. cliff. — Differs from 0. labiatus, in its luteous post- 

 scutel ; its black -clypeus 9; its polygonal shaped clypeus 9, 

 terminating in two small teeth; and its small size. 



Comp. also 0. Chiliotus. 



Hob. Chili. 



B. Form shorter, wider ; first segment wide on its ptosterior 

 border; its ante?' ior face in the form of an equilateral 

 triangle and a little pedicellate ; its superior face large. 

 Metathorax excavated, offering a trace of a polygonal plate 

 surrounded with ridges. 



a. Wings rufous along the anterior margin. 



53. O. Molinae Sadss. — Niger, hirsutus; antennis, clypeo, mandi- 

 bulis, tegulis pedibusque, rufis ; pronoto medio et fasciis 2 abdominis, 

 luteis ; abdominis primo segmento satis elongato, postice sat lato, secuudo 

 subtus basi paulum plicato; alis ferrugineis, apice fuscescentibus. 9 

 Long. 14 mm. 



Odynerus Molinoz Sauss. in Gay's Hist. fis. de Chile, Zool. VI, 562, 3, 



J (1852). 

 Odynerus Molinius Sauss. Vespides, III, 251, 126 (1854). 



Hab. Chili (Type in the Paris Museum). 



54. O. labiatus Halid. — Satvalidus,depressus; postscutello depresso, 

 truncato, metanoto excavato; abdominis primo segmento superne lato, 

 basi parum petiolato, facie antica trigonali, facie supera brevi, lata, 

 sulco profundo partita, antice cantho hebetato, subprorainulo marginata ; 

 secundo segmento subtus basi tuberculato. Niger, velutinus, pilis 

 nigris hirsutus ; thorace tenuiter punctato, etiara in metanoti excava- 

 tione asqualiter rugoso ; mandibulis, antennis, tegulis pedibusque rufis ; 

 pronoti margine antico (noununquam tantum in medio) et abdominis 

 segmentorum V, 2' margine, luteis ; alis ferrugineis, apice violascen- 

 tibus. — Longit. 16 mm. 



9 . Clypeo rufo, apice truncato vel suberaarginato. 



% . Clypeo elongato, ovato, polygonali, luteo, apice sat late subemarginato. 



