76 PROCEEDINGS OF THE NATIONAL MUSEUM vol.74 



strong postsutural dorsocentrals, one pair of prescutellar acrostichals, 

 and ten series of rather irre^rular intradorsocentral hairs; anterior 

 sternopleural short but distinct. Bristles on apices of abdominal ter- 

 gites rather long: hypopygiiim small, as Figure 75. Fore femur 

 with anteroventral comb; preapical dorsal bristle on fore tibia 

 slender, about three-fourths as long as basal segment of fore tarsus; 

 mid tibia with one long and two unequal short apical ventral bristles ; 

 hind femur with a preaj^ical anteroventral bristle; hind tibia with- 

 out a preapical dorsal bristle, the surface in type with a ridge dor- 

 sally for a short distance at apex. Inner cross vein at middle of 

 discal cell; ultimate section of fourth vein about 1.5 as long as 

 penultimate section. 



Length, 4.5 mm. 



Type. — Cat. No. 41136, U.S.N.M. Type^ male, allotype, and seven 

 paratypes, Mount Maquiling, Luzon (C. F. Baker). 



HOMONEURA (HOMONEURA) ATRICEPS, new species 



Male. — Shining testaceous yellow. Frons with a large subquadrate 

 dark central mark; face deep black, the parafacials velvety and, 

 when seen from above, with very slight white dusting, central por- 

 tion of face t^hining; apical half of third antennal segment deep 

 black; palpi yellow. Thorax with two narrow black vittae mesad 

 of the dorsocentral bristles which begin behind arterior margin and 

 connect with a dark mark on base of scutellum, and the notopleural 

 suture infuscated. Abdomen without black markings. Legs yellow. 

 Outer cross vein of wing slightly dark clouded. 



Anterior orbital bristles about one-third as long as posterior pair 

 and not as long as ocellars^ outer verticals about half as long as inner 

 pair; arista long plumose. Thorax with the usual bristles, the intra- 

 dorsocentral hairs in 8-10 series; scutellum flat above. Fore fenuir 

 with an anteroventral comb ; mid femur with some long fine postero- 

 ventral bristles; hind femur with some similar anteroventral bristles; 

 hind tibial carina very slight. In other respects except the hypo- 

 pygium similar to nothostieta Kertesz. 



Length, 3.5-4 mm. 



Type. — Cat. No. 41135, U.S.N.M. Type and five paratypes, Mount 

 Maquiling, Luzon (C. F. Baker). 



The markings of the dorsum of thorax are the same as in hUineella 

 Frey, but in the latter the face is yellow, as it is in all the other 

 species belonging to the group in which the hind tibial bristle is 

 lacking so far as I know now. 



It might be proper to ei'cct a subgenus for this group, but it is 

 not imperative at this time, so I leave it unnamed meantime. 



