338 THE ASIATIC FUR-SEAL ISLANDS. 



(8) Stenomacrus horealis, new species. 



Female. — Length, 2.75 mm. Polished black; extreme tip of clypeus, mandibles, 

 except teeth, basal one-third or more of antenna^, and legs, except hereafter noted, 

 ferruginous; anterior and middle coxse at apex, trochanters, knees, and hind 

 trochanters yellowish white; middle coxae at base dusky, hind coxae black, the 

 femora brownish piceous; tegulse and wing veins at base white. Face prominent, 

 iinely, minutely punctured, with some fine transverse aciculations over them ; antennae 

 22-jointed; wings hyaline. The narrow, lanceolate stigma and the veins, except as 

 already noted, pale brown. Metathorax rather long, finely rugulose, with four 

 longitudinal carinse, the two middle ones rather close together, but converging and 

 meeting in a point at base; petiolar area distinct. Abdomen a little longer than the 

 head and thorax united, compressed from second segment, polished, shining, but with 

 the first entirely, and the second segment at base, aciculated. 



Type.—Eo. 4040, U. S. N. M. 



Bering Island. One female, July, 1897 (Dr. Stejneger). 



(9) Exolytus niger, new species. 



Female. — Length, 7 mm. Polished black; mandibles, palpi, and legs, except all 

 coxse, middle tarsi, and hind trochanters, their femora and tarsi, rufous; usually the 

 first joint of anterior and middle trochanters and the middle femora are obfuscate or 

 piceous, while a single specimen has the legs, except hind coxae, their tarsi and the 

 middle tarsi, entirely rufous, the anterior and middle coxae being blackish only at 

 base. Face sparsely punctate. Antennae 21-jointed, longer than head and thorax 

 united, the scape black, the pedicel and pedicellus rufous or piceous, while the 

 flagellum is brown black, rarely distinctly black. Wings dusky hyaline, the stigma 

 and costal vein brown black, the internal veins dark brown, the areolet pentagonal, 

 complete, but the outer nervure is hyaline from a large bulla. 



Type.— No. 4041, U. S. N. M. 



Bering Island, July-August, 1897 (Dr. Stejneger). Described from three speci- 

 mens taken on Bering Island and three additional specimens taken by Mr. F. A. Lucas 

 on Pribilof Islands. One of the latter measures only 6 mm. in length, 



(10) Stibeutes nigrita, new species. 



Female. — Length, 2 mm. ; ovipositor about two-thirds the length of hind tarsi. Pol- 

 ished black; labium and labial palpi white; maxillary palpi dusky; legs ferruginous, 

 the coxae black, the femora more or less embrowned ; tegulae brown. 



The head is transverse, the vertex and occiput smooth, shining, impunctate, the 

 face punctured, the clypeus well separated, convex. Antennae 19-jointed, a little 

 longer than the body, slightly thickened toward tips and, except a pale annulus 

 between the pedicel and the first flagellar joint, entirely black; the scape and the 

 pedicel are considerably stouter than the flagellum, subglobose; the first joint of 

 the flagellum is the longest and about as long as the scape and pedicel united; the 

 following joints to the last gradually but imperceptibly become shorter and shorter, 

 but also gradually widen, the penultimate joint being scarcely longer than wide; the 

 last joint is ovate, much longer than the preceding joint. Thorax without distinct 

 parapsidal furrows, at the most only slightly indicated at the anterior margin of the 

 mesonotum; scutellum distinct, with a transverse fovea at base; metathorax com- 

 pletely areolated. Wings abbreviated and narrowed, hardly extending beyond the 

 middle of the abdomen, subhyaline; the stigma and veins brown, the areolet and 

 marginal cell wanting. Aldcmcn a little longer than the head and thorax united, 



