[251] HYMENOPTERA 257 



without an areola. The abdomen is elongate, the first segment long 

 and narrowed towards base, shagreened, with a longitudinal median 

 elevation, the dorsal carinas only distinct basally, the second segment, 

 except very feebly in the basal depressions, and the following segments 

 being smooth and impunctate. 



Tyfe. — Cat. No. 5709, U. S. Nat. Museum. From Popof Island, 

 July 9. One specimen. 



ICHNEUTES ALASKENSIS sp. nov. 



Male. — Length 4 mm. Resembles /. fopofensis but the palpi are 

 subfuscous, the antennae shorter, 24-jointed, the legs darker, the middle 

 femora basally, the hind femora, their tibiae, except basally and 

 beneath, and their tarsi being black or dark fuscous, the first abscissa 

 of the radius is distinct, half the length of the first transverse cubitus, 

 while the first and second abdominal segments are coarsely rugulose, 

 the first segment being broad and having the dorsal carinae distinct to 

 at least the middle. 



Type. — Cat. No. 5710, U. S. Nat. Museum. From Popof Island, 

 July II. One specimen. 



Subfamily OPIINyE. 

 Genus Desmiostoma Forster. 



DESMIOSTOMA KUKAKENSE sp. nov. 



Female. — Length 3 mm. ; ovipositor very short, subexserted, the 

 sheaths black. Polished black, impunctate; clypeus and mandibles 

 rufous ; palpi, pedicel narrowly at apex, tegulae, and the legs, except 

 the hind coxae, pale brownish-yellow, the hind coxae basally and pos- 

 teriorly blackish. Wings hyaline, the lanceolate stigma and the veins 

 light brownish. 



The antennae are longer than the body; the mesonotum has an 

 elongate, median, crenate fovea posteriorly just in front of the scu- 

 tellum, the parapsidal furrows not being defined except far anteriorly 

 on the slope where they are deep and crenate ; the scutellum has a 

 transverse crenate furrow across its base; while the metathorax is 

 rugulose without carinae. Wings with the venation normal, the sub- 

 median cell longer than the median, the first recurrent nervure being 

 almost interstitial with the first transverse cubitus, while the second 

 cubital cell is elongate, the second abscissa of the radius being some- 

 what more than twice the length of the first. Abdomen long oval, 



