HYMENOPTERA 665 



the usual minute sculpture (reticulated under a compound microscope) distinct ; 

 propodeum smooth and shining. Wings with the neuration fuscous, the marginal vein 

 of the front wings subovate, beneath which is a fuscous fascia, a second fascia near the 

 middle of the wing, while a third occupies the apical part of the wing and is broader 

 than the clear space between itself and the middle fascia ; cilia short, the longest 

 not half the length of the greatest width of the wing. Abdomen shining. Length ^ 

 (abdomen somewhat contracted) i"5 mm. 



Hab. Oahu ; Koolau range, 1500 ft. 



(9) Polynema apicalis, sp. nov. 



Ferruginous, the antennae except the two basal joints, which are more or less 

 yellow or brown, black ; the middle tibiae are noticeably darkened, the hind ones, 

 except basally, nearly black ; the hind femora are also dark on the apical portion ; and 

 the apical joint of all the tarsi is black. Wings hyaline, but widely black on the apical 

 portion. Vertex of head with a transverse black line in front. 



Antennae with the pedicel subtriangular or obconic, the first funicle joint very short, 

 about equal to the pedicel but much more slender, the second very long, more than 

 twice as long as the preceding, and also much longer than the third ; fourth, fifth and 

 sixth not differing much in length and shorter than the third, club ellipsoidal, somewhat 

 shorter than the three preceding joints together. Thorax not shining, appearing 

 densely minutely punctate, from the microscopic reticulation of the surface. Marginal 

 vein dark, elongate-ovate, the longest cilia of front wings not equal in length to half the 

 greatest width of the wing. Abdomen smooth and shining, the ovipositor very slightly 

 exserted. Length i"6 mm. 



Hab. Oahu ; Honolulu mountains, about 2000 ft. 



(10) Polynetna perforator, sp. nov. 



Yellow or brownish yellow, the head, abdomen except the pedicel, and the claw 

 joints of all the tarsi black. Antennae with the three basal joints in the ^, and two in 

 the $, yellow ; the following joints more or less infuscate, the club fuscous or blackish. 



Antennae in the t long and filiform, the pedicel compressed and dilated, strongly 

 rounded beneath, the first funicle joint rather shorter than the second ; in the % the first 

 funicle joint much shorter than the next, not two-thirds of its length, the club large and 

 as long as the three preceding joints together. Thorax sculptured as in the other 

 species, the abdomen smooth and shining. Ovipositor as long or rather longer than the 

 claw joint of the hind tarsi. Front wings with marginal vein subpunctiform, dark- 

 coloured, ovate, the longest cilia hardly half as long as the greatest width of the wing. 

 Length 75 — V2 mm. 



Hab. Oahu, in the mountains. 



