108 THE CANADIAN ENTOMOLOGIST 



the base above ; abdomen with only the fourth segment rufous ; wings a 

 trifle more yellowish. 



Habitat: Pike's Peak, Colorado, alt. 10,000 ft, July 20, 1906(1,. 

 Primer). Type in the University of Nebraska. 



This may prove to be a distinct species. 



Tcnthredo pallicolus, var. Beulahensis* n. var. 



Female: Length, 10 mm. Differs from l>r. MacGillivray's descrip- 

 tion (Jn. N. V. Ent. Soc, Sept., 1S97, p. 160) of pallicoltts, in having the 

 inner orbits narrowly yellow, the base of the stigma only is luteous, and 

 the venation is very pale brown. It is also smaller. 



Habitat : Beulah, N. M., Aug. 3, 1902, "on foliage of VeratrumV 

 (Cockerell). 



Tcnthredo relativus, n. sp. 



Female : Length, 9.5 mm. Clypeus circularly emarginate, lobes 

 broad ; third joint of the antenme longer than the fourth, all the joints 

 somewhat enlarged at the apex. Head and thorax shining, without the 

 usual punctures ; postscutellum roughened; metapleune strongly produced 

 at the sides ; tarsal claws cleft, teeth eijual ; venation normal ; sheath 

 rather narrow, rounded at the apex, with a distinct fringe of hairs. 

 Colour : head yellow ; a large spot from the antennae to the occiput, spot 

 on the superior orbits, and the antenme, except the two basal joints 

 beneath, black. Thorax black, much marked with yellow ; pronotum, 

 except a transverse band, tegulae, margin of the middle lobe of the 

 mesonotum, scutellum, metanotum, a large part of the mesopleune, line 

 from the middle coxae to beneath the anterior wings, a spot above the 

 posterior coxae, and the basal plates, except a spot in the middle, yellow. 

 Abdomen ferruginous, a band on the first three segments at the sides 

 above, and a spot on each side of the fifth segment at the sides above, 

 black. Anterior legs, middle and posterior coxae except bases, middle 

 and posterior trochanters yellow ; middle and posterior femora, tibiae 

 and tarsi rufous. Wings yellowish hyaline, iridescent ; nervures and 

 apical third of the stigm'a dark brown ; costa and base of the stigma 

 testaceous. 



Habitat: West Point, Nebraska, June 21 , 1905 (H. S. Smith). Type 

 in the University of Nebraska. 



This species is near rubripes, MacG., but differs at once in the bla< k 

 pectus. It differs from perplexus, MacG., in having the legs below the 



