334 HYMENOPTERA OF AMERICA. [PART I. 



Black, shining. A little mark at base of mandibles, and of the 

 scape, a frontal spot, a little line in the sinus of the eyes, a post- 

 ocular dot, a sput under the wing, and a narrow marginal line 

 on the first abd. segment, yellow; knees and tarsi ferruginous; 

 anterior tilme yellow, especially anteriorly. Wings transparent. 



Var. a. Black. A spot on the mandibles, scape beneath, frontal 

 and post-ocular spot, a little line in the sinus of the eyes, and 

 one on the summit of the clypeus, yellow ; the two spots of pro- 

 thorax cpiite narrow; a spot under the wing, only two quite 

 small dots on the post-scutel, a narrow margin on the segments 

 1, 2 of the abdomen, and two free spots on the 2d segment, yel- 

 low. Feet black; knees yellow; tarsi ferruginous; anterior and 

 intermediate tibia? anteriorly yellow. 



b. The margin of the 2d segment with only a small lateral yel- 

 low mark. 



Bess. a. cliff. — This Qdynerus is well characterized by its quite 

 exceptional livery, the thorax being quite black, with a yellow 

 spot under the wing. It slightly recalls the description of 0. 

 Tisiphone, but the post-scutel is not yellow, and the metathorax 

 not ridged on its margin. 



Hab. New England, Connecticut. Taken by E. Norton. 



b. Anterior margin of prcthorax adorned with yellow, but not the posterior 

 margin; the yellow fascia often bilobed or interrupted. Fossette of meta- 

 thorax large, rather triangular, occupying nearly the whole width of the 

 metathorax. 



* Sometimes there are two little free spots <>n Hie Id alidnminal Segments. (These very 

 small spots are very often war-ting, and do n.>t constitute serious characters.) 



133. O. Victoriae SAtrss.— Niger, tenuiter dense punctatus ; metanoti 

 foveola pa rum excavata, marginibns inferis subacutis ; cot-pore serieeo- 

 sublanoso; puncto mandibularum, puncto froiitali, oculari et post- 

 oculari, scapo subtus, pronoti marline antioo, macula subalari, post- 

 scutello, metanoti canthis, abdominis segmentonim raargiriibus, tibiis 

 et tarsis, flavis ; tegulis tufts. — Variat. puncto mesonoti et puncto utrin- 

 qne 2' segment!, flavis. 

 9 • Clypeo crassins strigato-punctato in snmmo, fascia arcnata flava. — 

 %. Clypeo flavn, bidentato ; striga mandibulorum et orbitis internis, 

 flavis ; met-anoto ssppius immaculato. 



Odyn. Victoria Sauss. Revne de Zoolog., IX. 1857, 279, £. 



Total length, 10 mm. ; wing, 8 mm. 



