ODYNERUS. •"-■> 



lion smooth or a little punctured, superiorly margined by (almost) 

 an edge, making an M or W reversed. 



Abdomen having its first segment more rounded, narrower 

 and a little longer; the second .short and more strangulated at 

 base, to fit into the first, its binder margin with a more .simple 

 line of punctures ; the 2d segment as coarsely cribrose in the 

 middle as the edge of the 2d, but only in the middle. 



The arcuate yellow fascia of clypeus wider; the maculae of 

 prothorax more approximate; tegulse ferruginous, with two yel- 

 low spots; lateral spots of the 1st segment quite small or wanting; 

 knees, tibiae, and tarsi ferruginous, spotted with yellow. Segments 

 3, 4 very narrowly margined, the 5th black. Wings cloudy. 



Bess. a. diff. — This species is easy to distinguish by its not 

 punctured thorax, and elevated post-scutel. 



Hab. Lower California. Cape St. Lucas (T. Xantus).' 



125. O. R.eniltc<Q)tiailllS Saups. — Niger, nitidus, punetatus, 0. Penn- 

 sylvanico affinis, at brevior; dense punctatus, metanoto et and. primo 

 segmento grosse punetatis ; corpore albido-variegato ; macula mandi- 

 bularum, clypei, frontis et oculorutn, linea in scapo, maculis 2 pronoti, 

 2 metauoti, 2 subalaribus, post-scutello, tegulis abdominisque segmeu- 

 torum limbo, secundi puucto utrinque tibiisque, albidis 9 • 



Odijn. Kennicotianus Sauss. Rev. de Zool. XXII, 1870, 104, 23. 



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



A species allied to 0. pedestris. A little smaller; forms the 

 same; the prothorax also finely angulate, but the thorax shorter; 

 the metathorax a little less retracted and more open, that is. its 

 concavity is a little wider.- Abdomen less lengthened, lirst seg- 

 ment shorter, cupuliform, the 2d as wide as long, a little more 

 densely and finely punctured. The metathorax and the first 

 segment shorter, cribrose with large punctures, almost as in the 

 0. perennis. Scutel divided by a longitudinal groove. 



?. Clypeus black. A spot at summit of mandibles, three dots 

 or an arcuate line on summit of clypeus, a spot on the front, 

 another in the sinus of the eyes and one behind their summit, a 

 line on the scape of the antennae, two spots on prothorax, one 

 under the wing, post-scutel, tegulae, and two spots on the summit 

 of metathorax, whitish; all the segmenl of the abdomen adorned 

 with a while border, wide and regular; the 2d ornamented with 



