26 PROCEEDINGS OF THE NATIONAL MUSEUM vol.69 



Thorax with plumbeous pollen and when viewed from behind 

 with four shining black stripes. Chaetotaxy: Acrostichal 2 or 3, 3 

 (none or a small just before suture); dorsocentral 3, 4; humeral 5; 

 post-humeral 2 ; presutural 2 ; notopleural 2 : supraalar 3 ; intraalar 3 ; 

 postalar 2; sternopleural 2, 1; scutellum with two marginal and a 

 rather long decussate apical pair, disk with several erect spiny bris- 

 tles of smaller size. 



Abdomen subshining black, with thin rather silvery pollen, a 

 sharply marked reddish-yellow tip, including most of the fourth 

 segment, extending forward in the middle almost to the front edge 

 of the segment; one pair discal bristles on second and third segments, 

 foiu'th with numerous erect bristles over most of its surface. Geni- 

 talia small, black; a large flat lobe on each side yellow. 



Legs black; middle tibia with two large bristles on outer front 

 side; pulvilli elongated, the front ones considerably longer than last 

 tarsal joint. 



Wings subhyaline, bend of fourth vein with a small stump, beyond 

 which the vein is not transverse, but gradually narrows the first 

 posterior cell, which is open far before the wing tip. 



Length, 10 mm. 



Described from two males collected at Angol, Cliile, by D. S. Bul- 

 lock, April 9 and March 29, 1925. 



Type.— Cat. No. 28903, U.S.N.M. 



The species differs from the genotype of Cuphocera in having still 

 smaller palpi, ocellar bristles, and discal abdominal bristles. The 

 striking golden color of the face and bucca, the contrasting color of 

 the basal and apical part of the antennae, and the striking yellow 

 tip of the abdomen make it easily recognizable. 



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