50 PHILIPPINE DIPTERA, II 



yellow ; occiput with dense gray dust, which becomes paler on the 

 dilated lower part; frons once and a half as long as broad, 

 broader than an eye, distinctly broader in the middle than at the 

 ends, the middle band clothed with short yellow hairs and with a 

 narrow white stripe on the sides, with a middle longitudinal 

 dark line ; lunula yellow ; two pairs of black vertical bristles ; face 

 whitish-dusted, above with a short dark longitudinal band be- 

 tween the antennae, and below with two black spots at end of the 

 antennal grooves ; cheeks narrow, much narrower than the third 

 antennal joint; jowls about one fifth of eye, yellow, with a less 

 distinct brown spot. Antennae entirely yellow, a little longer 

 than one half of face ; third joint attenuated, but obtuse at end, 

 with a short, basal, plumose arista, the breadth of feathers being 

 equal to the breadth of the third joint. Prselabrum convex, 

 circular, shining yellow, with a black spot on each side; palpi 

 dilated, deep black, the apical border shining whitish and the 

 thin base broadly yellow; proboscis yellowish. 



Mesonotum opaque, black, but almost entirely occupied on 

 the dorsum by the three equally broad longitudinal stripes of 

 yellowish tomentum; the short pubescence yellow on the yellow 

 stripes and black on the black ones; the hind border of dorsum 

 with a row of long yellow hairs before the scutellum ; bristles 

 black; pleurae entirely clothed with yellowish tomentum, sepa- 

 rated from the external stripes of the dorsum by the black 

 notopleural band ; hairs yellow and very long on the hind border 

 of mesopleura and of pteropleura. 



Scutellum black, convex at end, with the broad, middle yellow 

 band exactly in continuation of that of dorsum; two pairs of 

 apical black bristles, and rather long yellow hairs at hind 

 border. Squamae and halteres pale yellowish. 



Abdomen entirely clothed with yellowish tomentum like the 

 mesonotum, but with a black longitudinal stripe on each side 

 not reaching the hind border, and thus forming the three lon- 

 gitudinal yellow stripes, the middle of which is exactly in contin- 

 uation of that of scutellum and mesonotum; venter yellow and 

 brown, rather shining. Male genitalia black, rounded, retracted, 

 with some short black and red appendages below and with a 

 very long, spiral, shining reddish penis; ovipositor short, black, 

 flattened. Legs yellow, with yellow pubescence; front coxae 

 mainly black ; femora and tibiae broadly black at end, sometimes 

 the anterior femora and even the middle ones entirely black 

 with yellow ends ; basal joint of all the tarsi whitish. 



Wings with a distinct yellowish tinge at base and fore border ; 

 covered with numerous dark spots, which are in part confluent, 



