294 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.43. 



indistinct, femora black-brown except at extreme apex, tibiae yellow, 

 tarsi yellow, except bases of joints 2-4 and all of last joint which are 

 brown, all femora with a double row of short blunt spines on apical 

 third of ventral surfaces, mid and hind femora with long, soft, pale 

 hairs on posterior surfaces and the femora with a group of bristles 

 on same surface at apical third; wings clear, stigma distinct, third 

 and fourth costal divisions of about equal length, inner cross vein 

 slightly before end of auxiliary vein and at less than one-third from 

 base of discal cell; halteres yellow. 



Length, 4 mm. 



One male, Wliite Mountains, Kio Ruidoso, New Mexico, 6,500 

 feet, July 30 (collector, C. H. T. Townsend). 



Can not be confounded with any other described species, because of 

 the peculiarly shaped abdomen. 



Type.— C&t. No. 14801, U.S.N.M. 



PIPUNCULUS STIGMATICA, new species. 



Male. — ^Eyes confluent for as long as length of frons, frons silvery, 

 face as broad as frons above antennae, parallel-sided, silvery, anten- 

 nae black, third joint elongate and distinctly acuminate, silvered, 

 arista elongate oval at base, and shining black, occiput silvered, less 

 distinctly so on upper portion, thorax silvery gray-dusted on anterior 

 margin, brownish dusted on disk, humeri brownish, pleurae and 

 lateral margins of thorax distinctly whitish dusted, thoracic hairs 

 weak, scutellum dusted at base, the usual hairs very indistinct; 

 abdomen subopaque, first segment gray-dusted dorsally, lateral 

 comb represented by very numerous, weak, pale hairs, other abdom- 

 inal segments without distinct dusting but all with scattered short 

 pale hairs, longer and more numerous laterally, hypopygium without 

 cleft, rather longer on right side, ventral processes small, inconspic- 

 uous, yellowish; legs black, extreme apices of femora and bases of 

 tibiae yellow, tarsi tawny, claws, except at apex, and pulvuUi yellow, 

 no distinct bristles, those on ventral surface of mid femora veiy 

 short and inconspicuous, tibiae with pubescence, es^Decially the ven- 

 tral surface of hind pair; wings clear, costa thickened slightly at 

 from end of auxiliary vein to end of first vein, stigma dark brown 

 but very short, and looking like a swelling of costa, third division 

 of costa but little more than half as long as fourth, small cross vein 

 at distinctly beyond end of auxiliary and at less than one-third 

 from base of discal cell, outer cross vein at three-fourths its own 

 length from end of fifth vein, outer portion of fourth vein not much 

 bent; halteres brown. 

 . Length, 3^ mm. 



One male, Kasio, British Columbia, 1 6-7-' 03 (A. N. Caudell). 



