330 Annals Entomological Society of America [Vol. XIII, 



Type, Pullman, Washington; paratypes, same locality and 

 Tacoma, Washington; Yellowstone Lake, Wyoming; Missoula, 

 Montana. All the specimens were taken during August. 



Tetanocera spirifera new species. 



Male — Length (> mm. Front yellow, orbits silvery, paraorbits 

 scarcely shining, middle stripe depressed, narrow, extending through 

 the luteous fascia, its nearly parallel sides bounded by brown ; antennal 

 orbital spot brown, cervical spot brown, enclosed by a silvery mark; 

 face and cheeks sericeous white; antennae relatively short, the second 

 joint obconic, as long as deep and three-fifths the length of the bluntly 

 triangular, almost quadrate, third joint, arista two-thirds longer than 

 the last joint, its base thick, its plumosity moderately close and long. 

 Mesonotum ochraceous, with narrow light brown acrostichal vittse 

 and broader lateral stripes; pleurae pale ochraceous, with superior 

 fulvous band as usual. Abdomen unicolorous ochraceous, hypopygium 

 moderate, with pronounced posterior swelling before the foramen, 

 paramera short, very slender, twisted corkscrew-like. Legs yellow, 

 tarsi dusky, front coxae with four bristles, front femora with four dorsal 

 bristles, middle femora with one anterior bristle, hind femora with two 

 dorsal and about six short bristles in each flexor row in addition to the 

 apical pectination and proximal moderately sparse setulas. Wings with 

 yellowish tinge, costal margin, apex and crossveins infumated, sections 

 of fourth vein proportioned 1 : 0.8 : 1, posterior crossvein gently curved, 

 anal vein slightly longer than half the discal cell. 



Type and female, Nigger Hills of Powell County, Montana,* 

 July, received from Wm. M. Mann; paratype male, Gardiner, 

 Montana,* 17 August, 1918. 



Tetanocera phyllophora new species. 



Male — Length, ()..) mm. Front yellow, somewhat translucent, 

 parafrontal stripes subshining, median stripe scarcely depressed, 

 narrowly triangular, vanishing at the luteous sutural edge; occiput 

 subshining yellow, no cervical dark spot; face and cheeks pale yellow, 

 sericeous; antennae relatively short, second joint obconic, as deep as 

 long and three-fifths the length of the third joint, the last rounded 

 triangular, one-third longer than deep at base, the lower edge convex, 

 arista delicate, scarcely twice as long as the third joint, loosely plumose: 

 Mesonotum uniformly ferruginous-yellow, not vittate; pleurae dusted, 

 ochraceous below the pale brownish notopleiiral portion. Abdomen 

 ochraceous, foramen of hypopygium small, paramera long, curved, 

 polHnose except on the pubescent, shining, explanate, pointed tip. 

 Legs entirely yellow, front femora with five outstanding dorsal bristles, 

 middle femora with one anterior bristle, hind femora with two dorsal 

 bristles, and about five below in addition to abundant flexor setae along 

 the entire length. Wings with flavescent tinge, veins yellowish toward 



