31 PHILIPPINE DIPTERA, II 



the neck to the sides of the vertex; frons opaque, darker in the 

 middle, with short yellowish pubescence; ocellar dot black; the 

 two pairs of vertical bristles, the only macrochsetse of the head, 

 black; face pale yellowish in the middle, reddish on cheeks and 

 on the sides below ; antennal grooves with a long black streak at 

 lower end. Antennae a little longer than half the face, entirely 

 pale yellow. Third joint somewhat attenuated at end, with a 

 long, thin basal arista, which is shortly pilose above on the 

 basal third. Palpi reddish, with darker base and yellow hairs; 

 proboscis thickened and dirty yellowish brown. 



Mesonotum entirely reddish yellow, darker on dorsum and 

 with short yellowish pubescence; humeral calli, a longitudinal 

 stripe above the notopleural line, a broad and oblique meso- 

 pleural stripe ending at the sternopleural suture, and two broad, 

 contiguous stripes rounded by propleural spots yellow. Scutel- 

 lum entirely yellow, with the base narrowly reddish brown; 

 mesophragma shining reddish. Macrochsetse black two noto- 

 pleurals, three supra-alars, one mesopleural, and one scutellar 

 apical ; sometimes exterior scapular bristles on one side only, the 

 humeral always wanting ; scutellum sometimes with two or three 

 more bristles near the end; sometimes also a weak praescutellar 

 bristle on one side only. Halteres yellowish. Abdomen longer 

 than thorax, distinctly narrowed at base, but not properly 

 stalked ; it is entirely reddish yellow, with short yellowish pubes- 

 cence ; the posterior part of first segment and the two following 

 segments almost entirely occupied by a dark brown transverse 

 band, which is sometimes interrupted in the middle, forming 

 two broad blackish spots on each segment. Ovipositor broad, 

 flattened, entirely reddish; venter blackish brown. Legs yel- 

 lowish, coxae reddish, tibiae darkened, tarsi blackish at end; 

 apical spur of middle tibiae black. 



Wings with a uniform yellowish tinge, which becomes brown- 

 ish along the fore border from base to apex, where it is dilated 

 to form an elongate spot, which surpasses the third longitudinal 

 vein, reaching almost the fourth vein ; third and fourth longitu- 

 dinal veins slightly converging toward the end, the first posterior 

 cell being, therefore, a little narrowed outwardly; anterior cross 

 vein distinctly before the middle of the very long and narrow 

 discoidal cell; apical cross vein of the second basal cell only a 

 little more oblique than that of the anal cell, the last being 

 perpendicular to the anal vein. Last two sections of the fourth 

 longitudinal vein practically of the same length, second section 

 considerably shorter than the third. 



LUZON, Laguna, Mount Maquiling (Baker} . 



