HYMENOPTERA 215 



Tribe TRTPHONINI. 



Genus Trematopygus Holmgren. 



TREMATOPYGUS KUKAKENSIS sp. nov. 



Female. — Length 5 mm. Black; mandibles, except the teeth and 



a spot at base, the legs, except the coxte and the hind tarsi, and dorsal 



abdominal 3 at apical half and 4 entirely, rufous; palpi, tegulae, epi- 



tegulae, subcostal vein, and base of stigma, yellowish-white. Head 



and thorax coriaceous, the metathorax rugulose, completely areolated. 



Abdomen with the petiole and second dorsal segment coriaceous, the 



following segments finely punctate, the dorsal carinae of the petiole 



indistinct, close and nearly parallel. 



Type. — Cat. No. 5647, U. S. Nat. Museum. From Kukak Bay, 

 July 4. One specimen- 

 Genus Cosmoconus Forster. 

 COSMOCONUS CANADENSIS (Provancher). 



Tryphon canadensis Provancher, Nat. Can., vii, p. 117, 1875. 



Mesoleius canadensis Provancher, Fn. du Can. Hym., p. 417, 1883. — Cres- 



SON, Syn. Hym. North America, p. 210, 1887. 

 Cosmoco7iiis canadensis Davis, Trans. Am. Ent. Soc, xxiv, p. 280, 1897. — 



AsHMEAD, Smith's Ins. of New Jersey, p. 578, 1900. 



Type. — In Parliament Building, Quebec, Canada. From Juneau, 

 July 25. Two male specimens. 



Genus Tryphon Gravenhorst. 

 TRYPHON ALASKENSIS sp. nov. 



Fetnale. — Length 6.Z mm. Black; anterior half of clypeus, man- 

 dibles, legs, except coxae, trochanters, hind femora and apex of their 

 tibiae and their tarsal joints at tips, and dorsal abdominal segments 3, 

 4 and 5, rufous; coxae, trochanters, hind femora, their tibi^ at apex 

 and the apices of tarsal joints, fuscous ; palpi, epitegulae, subcostal vein 

 and a spot at base of stigma, yellowish-white. Wings hyaline, the 

 stigma and veins, except as noted, brown. 



7>/^.— Cat. No. 5648, U. S. Nat. Museum. From St. Paul 

 Island, August 25 (Fur Seal Commission). 



Genus Trophoctonus Forster. 



TROPHOCTONUS INSULARIS sp. nov. 



Male. — Length 7.5 mm. Dark rufous, with the sutures of the 

 thorax, prosternum, mesosternum, metathorax and the extreme base of 



