P. CAMERON. HYMENOPTERA. 189 



ist segment except laterally at the apex and the base of the yd and 4 th , black, the black 

 on the 4 th dilated laterally at the apex ; the wings hyaline, tinged with violaceous especially 

 at the apex, the costa and nervures black, the stigma rufo-testaceous ; a line, twice longer 

 than wide, on the base of the mandibles, an irregular triangular one on either side of the 

 middle of the clypeus near the apex, a narrow line on the orbits near the antennae and, it 

 may be, 2 spots between them, yellow. First abdominal segment distinctly narrowed at the 

 base, the rest becoming gradually roundly widened tovvards the apex, slightly longer than it 

 is wide at the apex; the 2 nd roundly narrowed at the base, a little longer than it is wide at 

 the apex. The greater part of the antennae — scape and flagellum — rufous, black above. Q. 



Length 13 mm. 



Closely, distinctly, but not very strongly punctured, the clypeus less strongly than the 

 front and more shining. There is a yellow line on the apical half of the fore tibiae in front. 

 The apex of the 2 nd abdominal segment is paler, more yellowish in tint. The underside of 

 the tarsi is covered with a golden pile. 



4. Icaria parvimaculata sp. n. 



Bivak Island, February. 



Black, covered with a white pile, a narrow line on the top of the ist abdominal seg- 

 ment and broader ones, ail round, on the others, reddish yellow, a small pale yellow oval 

 spot on the sides of the 2nd abdominal segment near the base and a short line on the man- 

 dibles in front; wings hyaline, largely tinged with rufous yellow, the base darker coloured, 

 the stigma and nervures reddish yellow. ist abdominal segment narrow at the base, becoming 

 gradually widened towards the apex, in length twice the width of the apex. 2 n <l segment a 

 little longer than it is wide at the apex, roundly narrowed at the base. Apical 7 or 8 joints 

 of the antennae rufo-testaceous below. Hinder ocelli separated from the eyes by 4 times the 

 distance they are from each other. The clypeus becomes gradually narrowed to an acute 

 point at the apex, which is bare and shining, the rest is covered with a pale pile ; , it is 

 sparsely, weakly but distinctly punctured. Ç. 



Length 14 mm. *, 



B. Abdominal pétiole longer than the scutellums and metathorax, slender, hardly 

 dilated towards the apex. 



5. Icaria longipetiolata sp. n. 



Lorentz River, September. 



Black, the clypeus, more or less of the scape of antennae, the scutellums, metathorax, 

 basai half of the abdominal pétiole and the legs except the hind tibiae and tarsi ferruginous, 

 the temples and the mesopleurae tinged with the same colour; wings almost hyaline, the 

 anterior with the apical half fuscous violaceous ; the nervures and stigma black. Q. 



Length 14 mm. 



Abdominal pétiole as long as the thorax, slender, not much narrowed towards the 

 apex, shorter than the following segments united. Face and clypeus densely covered with a 

 white pile. The clypeus is as wide as long, the apex margined, ending in a bluntly rounded point. 



Allied to /. gracilis Sm. and /. unicolor Sm., which hâve the abdominal pétiole long. 

 Nova Guinea. IX. Zoologie. 25 



