2l8 ASHMEAD [ 2I2 ] 



Genus Diaborus Forster. 

 DIABORUS SEXMACULATUS sp. nov. 



Male. Length 10 mm. Black ; face, except a median line con- 

 nected with a black band across base of clypeus, the remainder of 

 clypeus, spot on cheeks, epitegulae, a line on upper margin of prothorax 

 interrupted anteriorly, and spots, or bands at apices of dorsal abdom- 

 inal segments 2 to 7, lemon-yellow; mandibles, except teeth, the 

 palpi, tegulse and front coxae and trochanters, yellowish-white ; rest 

 of legs except as noted, reddish-yellow, the hind coxae and first joint 

 of trochanters above black, the apex of the tibiae and tarsi fuscous. 

 Wings hyaline, the stigma and subcostal vein yellowish, the other veins 

 dark brown. 



Type. Cat. No. 5639, U. S. Nat. Museum. From Popof Island, 

 July 8. One specimen. 



DIABORUS CITR1FRONS sp. nov. 



Male. Length 6 mm. Black ; face below antennae entirely, cheeks, 

 mandibles, scape beneath, a line on upper margin of the prothorax, 

 interrupted anteriorly, a short line beneath the tegulae, scutellum, post- 

 scutellum, and a triangular spot at apices of dorsal abdominal segments 

 i, 2 and 3, and bands at the apices of the following segments, lemon- 

 yellow ; palpi, tegulae, a line on the lower margin of the prothorax, 

 the front and middle coxae and trochanters, the hind coxae above 

 and the second joint of their trochanters, yellowish-white ; remainder 

 of legs, except the hind tibiae at apex and their tarsi red ; the hind 

 coxae beneath and the first joint of the trochanters are black, the hind 

 tibiae at apex and their tarsi are fuscous. Wings hyaline ; the stigma, 

 except at base and the subcostal vein, which are yellowish, and the 

 internal veins, dark brown. 



Type. Cat. No. 5640, U. S. Nat. Museum. From Popof Island, 

 July 1 1 , One specimen. 



Tribe CTENOPELMINI. 



Genus Erromenus Holmgren. 



ERROMENUS ANNULIPES sp. nov. 



Female. Length 6.8 mm. Black; clypeus and legs, except as 

 hereafter noted, red ; mandibles, except teeth, epitegulae and the sub- 

 costal vein, front and middle trochanters, except the first joint of the 

 middle above, the tibial spurs, and the extreme apices of dorsal ab- 



