242 THE CANADIAN ENTOMOLOGIST. 



Tenthredo Barnstonii, Kirby. 



i £ , poor condition; the legs are entirely ferruginous, the hind legs 

 are darker than the anterior ones. 



Tent /ire do nigricostata, Pro v. 



i ?, July 22, 1892. This is probably the same as erythroviera, 

 Prov. 



Tenthredo xanthus, Nort. 



1 $ , May 2 1 st. The light spot above the coxae and the black lines 

 on the tergum are wanting. There is a black dot above the base of the 

 antennae. 



Tenthredo scaevo/a, Cress. 

 2$ ?, May 7, 1893. 



Tenthredopsis transversa, sp. nov. 



Black; clypeus white; palpi, tegulae, collar, narrow elongated spot 

 from tegulae, apices of the coxa;, the femora, except a black line above, 

 the front and middle tibiae, a line on the hind tibia beneath, the front and 

 middle tarsi beneath, the venter, a narrow margin to abdominal segments 

 2-5, and the apex of the abdomen, yellow ; the basal membrane and 

 very narrow margin to abdominal segments 6-8, white ; the clypeus 

 slightly emarginate, the vertex finely punctured ; the thorax impunctate; 

 antenna; long, slender, black, segments 3-5 equal ; wings transparent, 

 veins black, costa and stigma lighter at base ; hind wings with two dis- 

 tinct middle cells. Length, 8 mm. 



2 $ S > Ma y l8 > 1892 ', May 7, 1893. 

 Tenthredopsis ruficorna, sp. nov. 



Black; the clypeus, the labrum, the mandibles, except at tip, a spot 

 between the antennae, two spots above the antennae, the cheeks, a broad 

 postocular band, an interocular band, broader from opposite antennae 

 below, continued narrowly to the postocular band, the prothorax, tegulae, 

 a spot below the tegulae, a trapezoidal spot on pleurae, a spot above pos- 

 terior coxae, a slender line above this spot, front and middle coxae, and 

 posterior cox;e, except two longitudinal black lines, waxen white ; 

 antennae, except two basal joints, black, honey-yellow above ; cenchri, 

 abdomen, except immediate base of basal plates, and legs, except coxae, 

 honey-yellow ; clypeus scarcely emarginate, labrum rounded ; segments 

 3-5 of antennae subequal ; wings yellowish-hyaline, veins fuscous, costa 

 and stigma honey-yellow ; hind wings with one or two middle cells. 

 Length, 1 1 mm. 



