340 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 104 



but very slightly prominent. Ocelli transparent whitish. Antennae 

 and maxillary palpi of same color as head, palpi rather unusually 

 short and wide. 



Postpedicel (third antennal segment) 0.34 mm. long and 0.20 mm. 

 wide, 1.7 times as long as wide. The shining seta more than twice 

 as long as the postpedicel, with basal two-thirds yellowish and with 

 apical third blackish brown. Eyes in profile exactly twice as high 

 as wide, sparsely beset with tiny hairs, erect and white. 



Head bristles and hairs are yellow to brownish yellow, rather acute, 

 not flattened; three incurved lower orbital bristles (ori), all equally 

 long, and about as long as anterior pair of recurved upper orbital 

 bristles (ors). Posterior pair of ors slightly shorter, the strongly 

 divergent ocellar and outer vertical bristles are slightly longer than 

 these; inner vertical bristles are the longest. There is a weak but 

 distinct genal bristle, darker in color than the others. 



Thorax pale ochraceous yellow in ground color, 2.3 mm. long 

 and 1.8 mm. wide; mesonotum densely covered with pale brownish 

 yellow dusting and with short hairs of the same color, except the 

 narrow bare posterior part in front of scutellum, which is subshining 

 and sparsely whitish dusted; in the dusting of mesonotum there are 

 three indistinct and nearly linear vittae, slightly darker in colour: 

 one in median line and two lateral in line of dorsocentrals; on posterior 

 part of mesonotum are a pair of rather rounded black spots, each 

 between the upper postalar and the prescutellar bristles, and another 

 pair of black spots, each beneath the wing basis, on the side of the 

 postalar callosity. 



The long and strong thoracic bristles are brownish yellow and rather 

 acute, not flattened; on the examined specimen only one mesopleural 

 bristle present on each side (the upper pair); dorsocentral pair is 

 situated about in middle between transverse suture and (imaginary) 

 transverse supr-aalar line. 



On the whitish dusted pleurae no black or brown spot present but a 

 triangular black marking occurs on each side of postscutellum. Scu- 

 tellum ochraceous yellow, subshining, with some brownish yellow 

 appressed hairs about the basal pair of scutellar bristles. Medioter- 

 gite shining and intensively brownish yellow. 



Coxae and legs entirely ochraceous yellow, with bristles and hairs 

 including row of densely placed short anterodorsal bristles on hind 

 tibiae, yellow to brownish yellow. 



Halteres pale ochraceous yellow. 



Wings with the usual pattern of the genus; basal band present but 

 does not attain posterior wing margin, forming at apical process of 

 anal cell a large, diffuse, translucent, and dark brown spot, extending 

 over anal vein; costa at humeral cross-vein (th) and at tip of subcosta 

 not blackened; anterior half of th brownish black; stigma long, about 



