386 PROCEEDINGS OF THE NATIONAL MUSEUM vol. i04 



weaker than the others, and but sHghtly longer and stronger than 

 posterior pan- of recurved upper orbital bristles (ors); the distance 

 between posterior and middle pairs of ori nearly twice as long as 

 between anterior and middle pairs; anterior pair of ors subequal to 

 outer verticals; ocellar pair is slightly longer than these, but considera- 

 bly shorter than inner vertical bristles. A paii- of distinct genal 

 bristles. 



Thorax 2.0 man. long and 1.5 mm. wide, testaceous yellow in ground 

 color (mesonotum is darker), except for the characteristic black spots; 

 mesonotum densely covered with short dark yellow appressed hairs. 

 The usual pair of lateral black spots between upper postalar and 

 prescutellar bristles is in this species wholly absent. There is a 

 pointlike black dot beneath base of wing, below postalar callosity. 

 On the sides of mesonotum the characteristic black spots of the 

 phaedr a grou-p: one horizontal short vitta below posterior notopleural 

 bristle, and one larger oval black spot on side of mesonotum above 

 wing base. On pleura four black spots: a horizontal linear vitta on 

 proplem'a attaining upper margin of anterior spiracle, a curved stripe 

 on inferior margin of ventral and dorsal pleurotergites, an oval one 

 on metapleura above hind coxa, and another one on lower hind corner 

 of pteropleura; none on sternopleura. 



The long and strong thoracic bristles are brownish yellow; only 

 upper mesopleural bristle present and well developed; posterior noto- 

 pleural bristle considerably shorter and weaker than anterior; dorso- 

 central bristle inserted in anterior sixth of the distance between trans- 

 verse suture and (imaginary) transverse line between supra-alar bristles; 

 apical pair of scutellar bristles well developed, slightly convergent and 

 crossed at apex. 



Scutellum covered with yellow appressed hairs, except on the 

 basicentral area. Postscutellum entirely testaceous yellow, without 

 black spots. Mediotergite subshining, intensive dark testaceous 

 yellow in ground color. 



Coxae and legs without exceptional characters, entirely testaceous 

 yellow with bristles and hairs of the same color, including anterodorsal 

 row of rather closely spaced bristles of hind tibiae. 



Halteres testaceous yellow. 



Wing with the slightly modified pattern of the genus: apical band 

 entirely separated from the others in both wings of the type specimen; 

 basal band almost entirely absent, subbasal band entirely yellow and 

 not attaining posterior wing margin ; second basal cell almost entirely 

 hyaline; costa darkened only above basal part of subcostal cell 

 (Csc^ stigma), which is rather narrow, 2.6 times as long as wide 

 basally. The second longitudinal vein almost straight, ultimate 

 section of third (Ri+s) and fourth longitudinal veins (Mi) only slightly 

 curved. First costal section 0.63, second 1.70, third 0.66, and fourth 



