[183] HYMENOPTERA 189 



PLECTOCRYPTUS YAKUTATENSIS sp. nov. 

 (PI. ix, fig. 6.) 



Female. Length 7 mm. ; ovipositor as long as the first two joints 

 of hind tarsi. Ferruginous, with the sutures of the thorax and the an- 

 tennaa toward apex black. Antennas 26-jointed, incrassated, the ped- 

 icel and joints I to 5 or 6 of flagellum fuscous, joints 14 and beyond 

 black ; the first joint of the flagellum is about twice as long as thick, 

 the second and those beyond to the fifth shortening, those beyond to 

 the last broadening and all wider than long. Wings hyaline, the stigma 

 and veins brown, the costs and basal veins blackish, the areolet irreg- 

 ularly pentagonal, receiving the second recurrent nervure at its apical 

 third. Metathorax areolated but with the basal lateral and the middle 

 lateral areas confluent, the spiracles elongate. Abdomen with the peti- 

 ole and second segment distinctly punctate, the third segment feebly 

 and indistinctly punctate, the following segments smooth and shining. 



Type. Cat. No. 5593, U. S. Nat. Museum. From Yakutat, June 

 2 1 ; Muir Glacier ; Sitka (Fur Seal Commission) . 



PLECTOCRYPTUS POPOFENSIS sp. nov. 



Female. Length 5.5 mm. ; ovipositor a little longer than the basal 

 joint of hind tarsi. Ferruginous, with the sutures of the thoracic 

 sclerites black ; palpi yellowish-white ; antenna fuscous or blackish 

 toward apex. The head is quadrate. The antenna? are 24-jointed, 

 stout, strongly incrassated toward apex, the scape large, subglobose, 

 the flagellum involuted, the first joint of same being about twice as 

 long as thick, the following joints to the last, after the third, transverse, 

 the last oblong. The thorax is minutely, sparsely punctate, the meso- 

 pleura from the discal impression posteriorly, being closely punctate ; 

 the metathorax is quadrate, impressed behind and rugulose, the areola 

 large, quadrate, the basal lateral and the middle lateral areas confluent. 

 Wings hyaline, the stigma and veins brown, the areolet rather large, 

 irregularly pentagonal, receiving the second recurrent nervure beyond 

 the middle. The abdomen is hardly longer than the head and thorax 

 united, smooth and polished, except the petiole and the second dorsal 

 segment which are punctate. 



Type. Cat. No. 5594, U. S. Nat. Museum. From Popof Island, 

 July 8. One specimen. 



This species in color mimics Ichneumon popofensis and, but for 

 some slight structural characters, is scarcely distinguishable from it. 



