248 ASHMEAD [ 2 4 2 ] 



areolated. Abdomen, except the first segment, polished black impunc- 

 tate. the tir^t segment longitudinally striate. 



7Y/V. Cat. Xo. 5^93, U. S. Xat. Museum. From Sitka, June 

 16. One specimen. 



Tribe ALLCEIXL 



Genus Delocarpa Forster. 



DELOCARPA SITKEXSIS sp. nov. 



I r cmale. Length 2 mm. Polished black, the first segment of the 

 abdomen, and the second towards base reddish-brown; mandibles red ; 

 legs rufo-testaceous, the femora and hinr! tibiae toward apex and their 

 tarsi duskv. Antenna? l^-jointed, the scape and pedicel brown, the 

 t'.igclltim black, the joints delicately fluted ; the first joint of the fla- 

 gcllum is obconical, about thrice as long as thick, the following to the 

 ninth are oblong but imperceptibly become shorter and shorter, those 

 be vond to the last being quadrate or nearly so, scarcely longer than thick. 

 Wings hyaline, the long linear stigma and the internal veins being 

 light brown or brownish-yellow. Metathorax rather coarsely rugulose. 

 Abdomen polished, impunctate, except the first segment which is 

 longitudinally striate. 



Type. Cat. No. 5694, U. S. Nat. Museum. From Sitka, June 16. 

 One specimen. 



Subfamily DA CNUSINsE. 



Genus Rhizarcha Forster. 

 RHIZARCHA HARRINGTONI sp. nov. 



^^alc. Length 4 mm. Head and thorax black, shining; scape, 

 pedicel, abdomen except petiole, and the legs brownish-yellow, the 

 dorsal abdominal segments with a fuscous tinge at the sutures, the hind 

 tarsi and sheaths of the ovipositor fuscous ; palpi whitish. Wings 

 hyaline, the narrow stigma and the veins brown. Antennae about 40- 

 jointed, the fiagellum black, the joints cylindrical, clothed with a short, 

 rather dense pubescence. Mcsonotum with a long median grooved 

 line posteriorly . Metathorax rugulose, clothed with a rather dense 

 yellowish pubescence. Abdomen, except as noted, brownish-yellow, 

 polMn-d, impunctate, the first segment black, rugulose. 



7V/V. Cat. No. 5695, U. S. Nat. Museum. From Juneau, July 25. 

 One specimen. 



Genus Gyrocampa Forster. 



GYROCAMPA ALASKENSIS sp. nov. 



I : ,-ialc. Lenght 2 mm. ; ovipositor not longer than the first joint 

 of hind tarsi. Polished black ; mandibles red ; teguke and legs, ex- 



