HTMENOPTEEA TEOM THE SANDWICH ISLAKBS. 681 



above, having only a few very fine shallow punctures ; the sen- ' 

 iellum slightly convex ; the metathorax opaque, oblique, and with 

 rather large shallow indentations, the lateral margins rounded, 

 without any excavation ; the claws of the tarsi ferruginous. Ab- 

 domen — the first segment campanulate, as long as broad, finely, 

 evenly, but not very closely punctured ; the second segment large, 

 irapunctate, or with only a few very fine shallow punctures, its 

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

 fine punctures. 



Male. Smaller than the female, but of the same form and si- 

 milarly sculptured ; difiers in having, at the apex of the clypeus, 

 two little pale yellow lines, a,nd also a small ovate-yellow spot 

 just above the insertion of the anteunaa ; the terminal hook of the 

 antennae and claw -joint of the tarsi ferruginous. 



Sab. Honolulu. 



This species is not rare, {T. B.) 



Odtneeus dubiosus, n. sp. Male. Length 4 lines. Black, 

 with fuscous wings, not very dark, but with bright violet irides- 

 cence. Head closely punctured ; the clypeus impunctate, or 

 with a very few fine shallow punctures ; its apex notched above, 

 giving it the appearance of being bidentate ; the terminal hooks 

 of the antennae pale at their tips. Thorax punctured, not strongly 

 so ; the lateral angles of the prothorax acute ; the scutellum and 

 postscutellum only slightly convex, and sparingly punctured ; the 

 metathorax with confluent rather shallow punctures, concave in 

 the middle, with the sides rounded ; the scutellum with a central 

 longitudinal impressed line. Abdomen — the first segment cam- 

 panulate, as broad as long, and evenly punctured ; the second 

 segment large, convex, the sides rounded; impunctate, or with 

 only a few very fine shallow punctures ; tlie following segments 

 with fine shallow punctures, but stronger than those on the 

 second segment. 



Sal}. Honolulu. 



Odtneetjs agilis, n. sp. Male. Length 4| lines. Black, 

 with a narrow yellow fascia on the apical margins of the first and 

 second segments. Head very closely punctured ; a minute yellow 

 spot between but a little above the insertion of the antennae ; the 

 clypeus very convex, and bidentate at the apex ; the terminal 

 hook of the antennae obscurely testaceous ; the entire insect with 

 a fine cinereous pile, which is most dense on the head and thorax. 

 Thorax — the scutellum rather convex, and with a central Ion- 



