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 spot under the wing, and a narrow marginal line 

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

 anterior tibiae 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 quite 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 tibiae anteriorly yellow. 



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

 low mark. 



Bess, a, diff. — This Odynerus 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 tittle free spots on the 2d nhdnminal segments. (These very 

 small spots are very often waning, and do not constitute serious characters.) 



133. O. Yictoriae Sauss. — Niger, tenuiter dense punctatus ; metanoti 

 foveola parum excavata, marginibus inferis subacutis ; corpore sericeo- 

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

 oculari, scapo subtus, pronoti margine antico, macula subalari, post- 

 scutello, metanoti canthis, abdominis segmentorum marginibus, tibiis 

 et tarsis, flavis ; tegulis rufis. — Yariat. puncto mesonoti et puncto utrin- 

 que 2' sngmenti, flavis. 

 9 . Clypeo crassius strigato-punetato in snmmo, fascia arcuata flava. — 

 % . Clypeo flavo, bidentato ; striga mandibulorum et oibitis internis, 

 flavis ; met-anoto saepius immaculate 



Odyn. Victoria Sauss. Revue de Zoolo?., IX, 1857, 279, <?. 



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



