680 MR. p. SMITH ON NEW SPECIES Or ACULEATE 



punctured ; tlie scutellum flat, and with a central longitudinal 

 impressed line ; the metathorax concave-truncate, the cavity 

 black ; wings dark fuscous, with a violet iridescence, along tlie 

 course of the nervures is a more or less tyaline line. Abdomen 

 shining ; the first segment campanulate, and with rather strong 

 distant punctures ; the rest of the segments more finely punc- 

 tured ; the red lateral margins of the second segment have a 

 united red' spot. 



Male. Length 3| lines. Very closely resembling the feniale ; the 

 terminal hook of the antennsB red. Thorax — two ovate spots on the 

 scutellum, also two beneath wings, frequently united ; the second 

 segment of the abdomen has a larger spot at the sides, and no red 

 band on the apical margin. 



Sal). Kauai. 



This species is not rare on Kauai. {T. B.) 



Group q/'Odynerus totouacus, Saussure's American 7F«5j?s, p. 346. 



Odyneeus MONTAifus, n. sp. Female. Length 6 lines. En- 

 tirely black and shining ; wings deep brown-black, with a violet 

 iridescence, very brilliant ; the stigma and costal nervures bright 

 steel-blue. The clypeus convex, finely punctured, with the apex 

 truncate. Thorax not so strongly or closely punctured as the 

 head ; the scutellum flat, the postscutellum slightly convex, shi- 

 ning, and sparingly punctured ; the metathorax concave-truncate : 

 having a central longitudinal channel ; obliquely rugulose in the 

 middle, the sides coarsely rugose. Abdomen — the first segment 

 campanulate, strongly but not very closely punctured, the apical 

 margin rebordered ; the second segment very convex, elevated to 

 a subconical shape, finely and not very closely punctured ; its 

 apical margin, as well as the following segments, with large shallow 

 punctures. 



Male. Length 5| lines. Closely resembling the female ; the 

 clypeus more strongly punctured, the terminal hook of the an- 

 tennae rufo-piceous, the thorax and abdomen as in the female. 



Sah. Mountains of Oahu, where it is common. {T. JB.) 



Odtnerus con&buus, n. sp. Female. Length 4| lines. Black, 

 punctured, and shining ; the wings fusco-hyaline, with a darkfus-. 

 cons stain along the anterior margin of the front pair. The head 

 with distant fine punctures ; the clypeus very convex, and with 

 a small truncate projection at its apex, impunctate, or with only 

 a few very fine distant punctures. Thorax smooth and shining 



