234 EDWARD NORTON. 



men; an oval dot above base of each of antennae, a short line at the 

 summit of inner orbits, cheeks, face below antennae, tegulje, collar, a 

 longitudinal mark on pleura, a large spot on breast-before intermediate 

 legs, a spot above postei'ior coxae, and all the legs beneath, including 

 the coxae, white ; abdomen mostly yellow-rufous ; the first and half of 

 second and of third segments of tergum black, and the venter toward 

 its base whitish ; legs black above (except apex of coxae), tarsi all 

 black, their patellae white; apical half of wings clouded, nervures 

 black, basal half of stigma white ; second submarginal cell long and 

 rather narrow, third submarginal not longer than the width of its ou- 

 ter end; second recurrent nervure received very near junction of sec- 

 ond and third submarginal cells. 

 Rocky Mountains, Colorado. (Coll. Am. Ent. Soc.) One S . 



17. T. rufopedibas. 



Tenthredo rufojiedihus, i^orton, Proe. Ent. Soc. Phil. iii. 1864, 15, 30. 

 Black ; mouth, cheeks, collar, tegulee, spot on pleura and pectus, white ; mid- 

 dle of abdomen rufous. Length 0.44. Br. wings 0.92 inch. 



S . — Black; antennae long, slender, joints enlarged at tips; a min- 

 ute oval dot at base of each of antennae, face and cheeks beneath, teg- 

 ulai, collar, a wide angulate L on pleura and spots above anterior and 

 posterior coxae, white ; breast waxen-white ; abdomen rufous on the 

 second, third and part of fifth segments above, and all but the two api- 

 cal segments beneath ; legs mostly rufous ; the four anterior coxae 

 waxen ; a spot on the tips of the anterior femora above and the apical 

 half of posterior tibiae and their tarsi black, except end of apical 

 joint, which is rufous; ends of intermediate joints blackish; wings 

 large, hyaline. 



Pennsylvania, Illinois (Coll. Am. Ent. Soc.) 



Two % . The color of the legs is honey-yellow like T. rufipes. 



18. Tenthredo varipictus, n. sp. 



Black ; mouth, cheeks, tegulse, collar, line on pleura, venter and coxae straw 

 white; apical half of abdomen rufous. Length 0.44. Br. wings 0.88 inch. 



$ . — Black ; antennae hardly reaching beyond base of abdomen, slen- 

 der; face and cheeks below antennae, tegulae, upper and lower margins of 

 anterior angle, a large obtusely sub-angulate stripe on pleura and spot 

 above posterior coxae straw-white, venter waxen; the four basal seg- 

 ments of abdomen black, remainder rufous ; coxae, and four anterior 

 legs beneath waxen ; intermediate tibiae and tarsi and posterior legs 

 reddish ; a black stripe down all the legs above ; tarsi tipped with 

 black ; wings hyaline, faintly smoky, nervures black. 



