THE CANADIAN ENTOMOLOGIST. 109 



trochanters rufous, the costa testaceous, and the sutures of the anterior 

 lobe of the mesonotum are yellow. It differs from verticalis, Say, to which 

 it is also related, in the different coloured legs, and is much more shining 

 than that species, lacking the dense punctures of the dorsulum that are 

 present on verticalis. 



To it lire do zelmirus, n. sp. 



Male : Length, 10 mm. Clypeus deeply emarginate, the lobes 

 triangular, broad, the apex rounded ; labrum rounded at the apex ; eyes 

 strongly converging below ; third antennal joint about a third longer than 

 the fourth, all the joints somewhat enlarged at the apex ; middle furrow 

 of the anterior lobe of the mesonotum distinct ; mesonotum and scutellum 

 densely punctured ; tarsal claws cleft, the teeth spreading and small; the 

 inner spur of the anterior tibiae bifid ; venation normal, transvewe radial 

 curved. Colour black ; clypeus, labrum, mandibles, except the piceus 

 apices, palpi, sometimes a spot above the posterior coxa?, and a small 

 spot on the pleurae yellow ; abdomen, except the basal and the two apical 

 segments, coxaa, extreme bases (the anterior coxae in one specimen are 

 black), femora, except a black line above (this line on the posterior femora 

 is widely broken in the middle), and the four anterior tibiae and tarsi 

 rufous. Wings dusky hyaline ; nervures and stigma black, the costa 

 sometimes a little paler, venation strong. 



Habitat : Ute Creek, Costilla Co., Colo., alt. 9,000 ft., July, 1907 (L. 

 Bruner and R. W. Dawson); Russel, Colo., June 25, 1907 (L. B-runer) ; 

 and Ft. Garland, Colo., July 12, 1907 (L. Bruner). Type and paratypes 

 in the University of Nebraska, and paratypes in my collection. 



This species should be easily known by the rufous coxae. It may be 

 the male of tricolor, Nort, or it might be the male of scctiliforinis, Roh. 

 It differs from this last species in having the legs marked with black, and 

 in bejng a little larger. 



Tenthredo Utensis, n. sp. 



Female: Length, 10 mm. Clypeus deeply emarginate, lobes 

 triangular ; labrum large, rounded at the apex ; frontal carina? not so 

 strong as usual ; third antennal joint about as long as four plus five, from 

 the third the joints gradually decrease in length, the entire antennae covered 

 with short, fine hair; middle furrow of the middle lobe of the mesonotum 

 almost wanting ; mesonotum and scutellum with well-separated punctures; 

 inner spur of the anterior tibiae with the apex bifid ; tarsal claws cleft, the 



