THE CANADIAN ENTOMOLOGIST. 1 1 1 



has less black, but there are two rows of black spots on all but the last 

 segment, and is slightly darker on the lateral margins. Tibi?e darker. 

 From North Carolina. 



Therioplectes tetricus. — Length 17 mm. 



Female. — Eyes pubescent, ocelligerous tubercle present. Front black ; 

 callosity black, shining, with an unconnected black spot above; sub-callous 

 black, denuded. Face and cheeks black with white hairs. Antennae 

 red, third joint black, upper angle projecting but little. Palpi white with 

 white hairs. Thorax grayish-black with the usual gray lines and gray 

 pubescence ; humerus reddish-brown ; pleurae and pectus gray with long 

 white hairs. Abdomen black, with three rows of white triangles, the 

 middle row indistinct ] the sides of segments two and three reddish ; hind 

 margins with a fringe of white hairs, which is wanting between the middle 

 and outer triangles. Venter yellowish-red with gray pollen, darker towards 

 the tip. Femora black, yellowish-brown at the tips ; tibiae brown, darker 

 on the distal half; tarsi black. Wings hyaline. 



From Montana. 



Therioplectes Frenchii. — Length 14 mm. 



Female. — Front black ; callous dark brown with a line extending 

 above ; sub-callous black. Face and cheeks black with white hairs ; palpi 

 yellowish with minute black hairs. Antennae red, annulate portion of 

 third joint black, angle not prominent. Thorax black with the usual lines; 

 humerus reddish-brown ; pleurae and pectus with white hairs. Abdomen 

 black with three rows of triangles, the lateral rows from segments one to 

 four prominent, middle row largest on second segment, on the other seg- 

 ments only an expansion of the hind margins ; lateral margins of segments 

 4-7 yellow with white hairs. Venter reddish-yellow, darker towards the 

 tip, covered with gray pollen. Femurs black, with whitish hairs, brown 

 at the tips ; tibiae brown, with white hairs, darker at the tips ; tarsi black. 

 Wings hyaline with faint clouds on the cross veins and bifurcation of third 

 vein. 



From Montana. 



Therioplectes susurrus. — Length 14 mm. 



Female. — Front gray ; callosity brownish-black with black line above ; 

 ocelligerous tubercle brown. Face and cheeks white with white hairs ; 

 palpi yellow with minute white hairs, and a ^t\\ l)lack hairs. AiTtennae 



