2 66 Annals Entomological Society of America [Vol.11, 



The generic name Metallus has been practically disregarded 

 since its publication in 1885. It is the earliest proposed name in 

 the subfamily and will therefore take precedence over all others. 



Species of Metallus. 



a. Stigma three times as long as broad; the front punctured around the base 



of the antennae canadensis Marl. 



aa. Stigma twice as long as broad; the front not punctured around the base 

 of the antennae, 

 b. Front wings with the free part of M^+Cuj joining the cell M^ distinctly 



bej^ond the middle capitalis Nort. 



bb. Front wings with the free part of M^+Cu joining the cell M^ at middle. 



c. Mesonotum and scutellum rufous rohweri n. sp. 



cc. Mesonotum and scutellum black rubi Forbes 



Metallus canadensis ]\Iarl. 



Body shining black with the median and lateral lobes of the meso- 

 notum rufous and the lab rum, clypeus, mandibles, antennae, angles 

 of the pronotum, tegulae, four anterior legs below the bases of the 

 coxae, and the trochanters, tibiae, and tarsi of the hind legs, orange- 

 white; the head punctured around the base of the antennae, with a 

 faint transverse furrow over the antennae; the antennal furrows not 

 nearly complete ; the lateral walls of the ocellar basin sharply defined 

 but low; the ocellar basin well defined above and connected with the 

 straight interocellar furrow, the interocellar furrow strongly con- 

 tinuous; antennae very short and stout, with the third segment not 

 quite as long as the fourth and fifth together, the second segment as 

 long as the first; the wings hyaline, iridescent, with the veins brown; 

 front wings with the radio-medial cross-vein present; the free part of 

 M4-I- Cui received near the middle of the cell M^ ; the stigma about three 

 times as long as wide ; hind wings with the cell R^ -|- , broadly open at 

 apex; the saw-guides narrow, the upper margin straight, apex rounded, 

 curved from the upper apex to the lower base. Length 4 mm. 



Habitat. — Canada (Marlatt). Types in the collections of 

 the American Entomological Society and of the U. S. National 

 Museum. 



Described from notes made by Mr. S. A. Rohwer for the 

 writer from the type in the collections of the American Entomo- 

 logical Society. 



Metallus capitalis Nort. 



Body reddish-yellow with the legs pallid and the head, the anten- 

 nae beyond the second segment, the mesopleurae, the pectus, and the 

 apex of the abdomen, piceous; the head with an indistinct transverse 

 carina between the antennae ; the antennal furrows distinct to about 

 half the distance to the median ocellus; the median fovea present, the 

 lower wall more distinct ; the ocellar basin with the upper lateral walls 

 not strong; the interocellar furrow not strongly continuous; the an- 

 tennae rather long and slender, rather hairy, the third segment a little 



