50 PEOCEEDIISrGS OF THE NATIONAL MUSEUM vol.83 



prominent between the vibrissae ; facial ridges flat, bare ; paraf acials 

 about two-fifths the width of face, with one strong bristle on lower 

 part and black hairs extending upward to lowermost f rontals ; pro- 

 boscis rather slender, the apical segment exceeding the height of 

 head; labella small; cheek silvery, clothed with black hairs, about 

 three-fourths the eye height; back of head convex in profile, gray 

 pollinose, clothed with whitish hairs. 



Thorax black, gray pollinose; pleura clothed with pale hairs; 

 mesonotum marked with four black stripes ; scutellum yellow beyond 

 middle, gray pollinose. Chaetotaxy: Humeral, 5; posthumeral, 2; 

 presutural, 2; notopleural, 2; acrostichal, 3, 3; dorsocentral, 3, 3; 

 intraalar, 3; supraalar, 3; postalar, 2; sternopleural, 2, 1; ptero- 

 pleural, 2 (broken off scars large). Scutellum with 2 lateral, 1 

 smaller decussate apical, and a still smaller discal pair; postscutellum 

 normally developed, gray pollinose ; calypters opaque, white. 



Abdomen rather narrow, black, the sides and apex reddish; cov- 

 ered witli changeable gray pollen, which in most views extends to 

 the hind margins of the intermediate segments and to the middle of 

 the fourth ; first segment without median marginal bristles ; second 

 with one pair, large ; third with one pair and three at the side ; fourth 

 with an arcuate row of large discals besides a row of smaller 

 marginals. 



Legs (only the hind pair present on type specimen) black, the 

 basal segments and tibiae reddish yellow ; hind tibiae with a row of 

 irregular bristles on outer posterior side. 



Wings grayish hyaline, tinged with yellow along the costa ; third 

 vein bristly almost to small cross vein; fourth with a rectangular 

 stumpless bend, beyond which it is concave, thence straight in an 

 oblique angle toward costa; epaulets yellow; costal spine vestigial. 



Length, 9 mm. 



Male. — Unknown. 



r^/;?^.— Female, U.S.N.M. no. 8645. 



Remarks. — Redescribed from one female (type) specimen in the 

 United States National Museum, reared from a chrysalis of Adiso- 

 phanes miscellus in Los Angeles County, Calif., by A. Koebele. 



Although the single type specimen was described 37 years ago, 

 no additional material has come to light during this period. The 

 black parafacial hairs readily distinguish the species from both 

 macrocera and jmrksi. Other differences are mentioned in the key. 



(2) CUPHOCERA PARKSI, new species 



Male. — Front rather broad, at vertex 0.402 of the head width (aver- 

 age of five, 0.39; 0.4; 0.4; 0.42; 0.4); paraf rontals gray pollinose 

 and clothed with intermixed black and white hairs; median stripe 

 pale reddish yellow, narrower than one parafrontal on most of its 



