40 PHILIPPINE DIPTERA, II 



black; frons and face dark reddish brown, shining; frons about 

 as broad as long, with parallel sides, with the eye borders very 

 narrowly white and continued on the cheeks ; face concave, with 

 rather prominent mouth border; antennae entirely reddish yel- 

 low, the third "joint obtuse at end and shorter than the face, 

 with finely pubescent arista; prselabrum short, not prominent, 

 yellowish; palpi yellowish; proboscis brown; pubescence of the 

 frons yellowish; bristles black; the single pair of frontoorbitals 

 directed backward and weaker than the two pairs of equally 

 strong but short verticals, the inner pair converging. 



Thorax stout, as long as broad, shining black, finely and 

 scarcely punctulate, with very short dark pubescence; bristles 

 black and very short; pleuraB convex, smooth, glistening, black. 

 Scutellum of great size, colored and punctulate like the dorsum, 

 with a pair of very short, stout bristles near the end. Squamse 

 small, pellucid, brownish; halteres brownish, the knob blackish 

 above. 



Abdomen short, almost triangular, smooth, shining bluish 

 black, glistening, with short and soft whitish pubescence; the 

 two first segments raised, forming a triangular keel, very acute 

 toward the middle. CoxaB and femora dark brownish, with short 

 dark pubescence ; tibias paler ; front tarsi blackish, the posterior 

 four entirely whitish. 



Wings grayish hyaline, with a faint yellowish tinge; the 

 base of the second costal cell in middle, the base of the first 

 basal and the whole upper part of the second basal pale brown ; 

 in the middle of wing a single, narrow, curved brown band, 

 which begins at end of the first basal cell in front of the an- 

 terior cross vein, fills out the end of the discoidal cell, sur- 

 rounds the hind cross vein, and ends at apex of the fifth vein; 

 the upper half of this band darker than the lower half. A 

 short pale brownish streak extends from the end of the first 

 longitudinal vein to the middle of the submarginal cell. Ante- 

 rior cross vein on the last third of the discoidal cell and near 

 the hind cross vein, which is oblique and a little longer than the 

 distance between the two transverse veins ; last sections of third 

 and fourth veins straight and almost parallel, the first posterior 

 cell being only a little broadened at end ; the section of the sixth 

 vein after the anal cell longer than the apical cross vein of the 

 anal cell. The entire wing surface strongly pubescent, the third 

 longitudinal vein covered with long scattered hairs on its whole 

 length. Discoidal cell a little longer than the second basal cell. 



LUZON, Laguna, Mount Maquiling (Baker). 



