HYMENOPTERA l8l 



anotum finely wrinkled ; mandibles and tegulse dark rufo-piceous ; 

 palpi fuscous ; sutures of trochanters, the anterior tibise entirely, the 

 middle tibia, except at apex and the hind tibial beneath, rufo-testa- 

 ceous ; hind tibias outwardly or above, and all tarsi, black or fuscous. 

 Head quadrate. Antennae 21 -jointed, the first joint of the flagellum 

 the longest joint, as long as the third and fourth joints united, the sec- 

 ond a little shorter than the first, but one-half longer than the third. 

 Wings subfuscous, the stigma and veins brown-black, the outer vein 

 of the areolet slender and pellucid. Abdomen elongate, polished and 

 shining, except the petiole, which is subopaque, coriaceous, with 

 some irregular, short aciculations. 



Type. — Cat. No. 5589, U. S. Nat. Museum. From Unga, July 21 

 (Fur Seal Commission). 



BATHYMETIS QUADRICEPS sp. nov. 



Male. — Length 3.5 mm. Polished black, the face below the antennae 

 finely, closely punctate ; palpi fuscous ; a narrow annulus at base of 

 first joint of flagellum, mandibles, sutures of trochanters, knees, ante- 

 rior and middle tibise, and more or less of their tarsi rufo-testaceous ; 

 teguljE rufo-piceous ; epitegulas and submedian vein yellowish-white. 

 Antennae 20-jointed, joints 3 and 4 equal, a little longer than the fifth, 

 joints 13 to 19 distinctly longer than thick, the last joint conical. 

 Scutellum with a smooth furrow across the base. Metathorax feebly 

 wrinkled but shining, and completely areolated, the areola hexagonal, 

 much wider than long. Wings hyaline, the stigma and veins brown, 

 the areolet pentagonal, receiving the second recurrent nervure at its 

 middle. Abdomen clavate, smooth and shining, except the petiole, 

 which is feebly alutaceous, with the spiracles somewhat prominent. 



Type. — Cat. No. 5590, U. S. Nat. Museum. From Popof Island, 

 July 7 ; St. Paul Island, August 15 (Fur Seal Commission). 



BATHYMETIS SIMULATOR sp. nov. 



Male. — Length 4.5 mm. Agrees very closely with B. quadriceps 

 in color and in having 20-jointed antennae, but may be separated 

 readily by the following differences : The palpi are pale yellowish, not 

 fuscous; antennal joints 13 to 19 are not, or scarcely, longer than 

 thick ; the transverse furrow at base of the scutellum is finely 

 striate at the bottom ; the metanotum is more coarsely wrinkled, 

 with the areola longer than wide ; the stigma and veins are darker 

 brown, almost black, the areolet receiving the second recurrent 



Proc. Wash. Acad. Sci., May, 1902. 



