366 PROCEEDINGS OF THE NATIONAL MUSEUM vol. io4 



postocular) cilia golden shining brownish black; the missing outer 

 vertical and perhaps the anterior pair of the recurved upper orbital 

 bristles are most probably also brownish black. Genal bristle and 

 the majority of the genal hairs are brownish black with a golden 

 lustre. 



Thorax with scutellum relatively long, 2.0 nun. long and 1.4 mm. 

 wide, reddish testaceous yellow in ground color; mesonotum, except 

 for the bare and shining posterior margin in front of scutellum, 

 evenly covered with yellowish dusting and golden shining appressed 

 short hahs; no pruinose vittae of different color, but both sides of 

 mesonotum above wing base and behind transverse suture up to line 

 of dorsocentrals covered with black hairs longer and thinner than the 

 whitish hahs. Only the usual pair of oval black spots present on 

 hind region of mesonotum, each between prescutellar and upper 

 postalar bristles. In the specimen examiued the small black dot 

 behind (and beneath) wing base absent. Sternopleuron (katepis- 

 ternite) almost entirely shining black, except for the narrow yellow 

 superior and hind margins; on the reddish yellow pleura are the follow- 

 ing black markings: a large black spot above hind coxa and a long 

 vittalike spot on inferior part of pleurotergites. Scutellum, post- 

 scutellum, and mediotergite shining dark testaceous yellow, without 

 black or dark spots. 



Thoracic bristles dark brownish yellow. Only superior meso- 

 pleural bristle present on both sides; dorsocentral pair inserted anterior 

 third of distance between transverse suture and supra-alar bristle 

 and more widely spaced than prescutellar pair. The hind notopleural 

 bristle only two -thirds as long as the fore. 



Coxae and legs testaceous yellow, only tips of femora and tarsi 

 are darker. 



Wings with the general pattern of the genus but basal band repre- 

 sented only by a round, large, opaque, brownish black spot situated on 

 apical part of anal ceU and on both sides of Cu2 + An2 vein, and bisected 

 in two halves by a hyaline line that borders from beliind the brownish 

 black anal vein. Costa blackened at the almost entirely black humeral 

 cross-vein and darkened at tip of subcosta. Stigma 2.5 times as long 

 as broad at base. First costal section 0.27, second 1.66, third 0.95, 

 and fourth 0.52 mm. long. Basal section of the fourth longitudinal 

 vein (Ml) 1.36, penultimate 0.48, and ultimate 1.66 mm. long. Inner 

 cross- vein more obUquely placed than the unusually oblique outer 

 cross-vein {tp) and slightly shorter than the penultimate section of 

 Ml (0.36 mm.); tp 0.61 mm. long. Discoidal ceU peculiarly shaped, 

 since the fifth longitudinal vein is strongly excurved; second basal 

 cell mostly yeUow with a smaU oval hyaline dot in the anteromedian 

 part of ceU. Anal cell with apical process 0.86 mm. long, 2.3 times as 

 long as the (0.37-inm.-long) apical process. Halteres dark testaceous 

 yellow. 



