596 PROCEEDINGS OF THE NATIONAL MUSEUM. voi,.xxiii. 



Female. — Differs from the male as follows: Apical portion of anten- 

 nre be3'ond the seventh joint light 3'ellow; abdomen, except the first 

 segment and dorsum of the second, reddish yellow; coxfe. fiont tibiae 

 and their tarsi, also the hind femora except their ends black or brown; 

 middle of middle femora brownish; the long hairs of head and l)ody 

 yellow; middle femora destitute of spines. 



Length, 9 to 13 mm. Two males and two females. 



77^//>/V^//.^Franconia, New Hampshire (Mrs. A. T. Slosson); North 

 Mountain, Pennsylvania (Mr. C. W. Johnson); and Ottawa, Canada 

 (Mr. W. H. Harrington). 



Type.— Cat. No. 5444, U. S. N. M. 



SCIOPHILA FLAVOHIRTA, new species. 



Head black, the face and mcjuth parts yellow, first two joints of 

 antennjB yellow, the remainder black, compressed, the third joint only 

 slightly longer than broad; thorax and scutellum yellow, polished, the 

 bristles and numerous, rather long hairs also yellow; abdomen polished, 

 yellow, the bases of segments two to five, the whole of the sixth, and 

 apex of abdomen, black; legs yellow, the tarsi brownish; halteres yel- 

 low; wings hyaline, marginal cell about twice as long as broad, fifth 

 vein forking far before base of third; front tibiaj slightly longer than 

 their tarsi; length, 5 mm. A male specimen, collected by Mrs. A. T. 

 Slosson. 



Jlahltat.—YvunconvA,^ New Hampshire. 



Ty2)e.—OAt. No. 5445, U.S.N.M. 



POLYLEPTA TIBIALIS, new species. 



Head black, the face yellow and rather densel}- covered with bristly 

 hairs; antennas brown, the bases yellow, the third joint about twice as 

 long as wide; mouth parts j^ellow, the penultimate and antepenulti- 

 mate joints of palpi with a leaf-like prolongation at the upper side of 

 their outer ends; thorax polished, yellow, two approximated vittas on 

 the mesonotum and a transverse row of three spots on the metanotum 

 dark brown, the hairs and bristles black; scutellum brownish yellow; 

 abdomen yellow, the broad apices of the segments, sometimes cross- 

 ing the segment in the middle of the dorsum, dark brown; halteres 

 and legs yellow, the tarsi yellowish brown; front tibiae each with a deep 

 groove before apex of anterior side, extending about one-third length 

 of tibia; wings grayish hyaline, costal cell tinged with yellow, auxil- 

 iary vein obliterated at its apex, the cross vein slightly before base of 

 third vein, fifth vein forking opposite the marginal cell; length, 5 mm. 

 Three female specimens, collected by H. K. Morrison. 



Ilahlfat. — White Mountains, New Hampshire. 



Tyi^e.—Cixt. No. 5446, U.S.N.M. 



I have also examined specimens collected by Mr, C W. Johnson at 

 Westville and Delaware Water Gap, New Jersey. 



