348 PROCEEDENGS OF THE NATIONAL MUSEUM vol. m 



as wide; seta bare shining black, except the thickened basal third, 

 which is ochraceous yellow; slightly more than twice as long as 

 the postpedicel. Eyes in profile 1.7 times as long as wide, very 

 sparsely beset with erect microscopic hairs. Maxillary palpi wide- 

 oval. 



The brownish yellow cephalic bristles hardly flattened; the weak 

 posterior pair of the recm-ved upper orbital bristles (ors) the shortest, 

 two-thirds as long as anterior pair; three incm-ved lower orbital 

 bristles, the anterior slightly longer than the posterior ors, the two 

 posterior ones equal to the anterior ors and to the outer vertical 

 bristles; ocellar bristles divergent and slightly longer than the latter 

 but the longest of the head bristles are the convergent inner verticals. 

 One pair of relatively short but distinct genal bristles present. 



Thorax 1.6 (1.4) mm. long and 1.2 (1.25) mm. wide, pale ochraceous 

 yellow in ground color; mesonotum, except the shining bare posterior 

 margin, evenly and densely covered with testaceous yellow dusting and 

 with very short yellow appressed hairs; only a trace of three linear 

 vittae on mesonotum, darker in color, one on median line and two 

 lateral vittae in the line of the dorsocentrals; in some of the dried 

 specimens these are grayish and more distinct. One pair of rounded 

 black spots present on hind part of mesonotum, each one between the 

 prescutellar and upper orbital bristles. On the whitish dusted pleura 

 there is a single pair of black spots on the inferior margin of the raised 

 ventral pleurotergite, which in the specimens examined does not 

 project into the inferior margin of the dorsal pleurotergite; on 

 sternopleura and above hind coxae there are testaceous yellow spots 

 instead of black ones. Scutellum shining, pale ochraceous yellow or 

 whitish in color, with a brown small apical spot between the apical 

 scutellar bristles, bare, with some short brown hairs at hind margin; 

 postscutellum without black spots, as shining testaceous yellow as the 

 mediotergite. 



Thoracic bristles relatively short but strong and brownish yellow. 

 All specimens examined possess two pairs of mesopleural bristles, the 

 upper bristle hardly twice as long as the much weaker lower one; 

 the dorsocentral pair inserted in anterior third of distance between 

 transverse suture and transverse line between the supra-alars. 



Coxae and legs pale ochraceous yellow, with brownish yellow bristles 

 and hairs, including the anterodorsal row of rather closely placed 

 short bristles on hind tibiae. 



Wing with the general pattern of the genus; the second basal cell 

 hyaline, except for posteroapical part, which is yellow; basal band 

 reduced to a diffuse small spot, transparent light brown, extending 

 slightly over petiole of anal cell. Stigma about three times as long as 

 wide at base. Costa at apex of subcosta not darkened, at most its 

 fracture is bordered with a fine dark brown line. Anterior tip of 



