20 PHILIPPINE DIPTERA, II 



129. Chrysopilus luctuosus Brun. 1909. 



Male specimens from Mount Maquiling. They agree with 

 the specimens from Formosa, referred by me 6 to the present 

 species, described from Assam. 



Of the typical endemic species Chrysopilus correctus, recorded 

 in the first century as No. 12, there are also specimens from 

 Malinao, Tayabas, and from Butuan, Mindanao. The wing pat- 

 tern seems to be variable in shape, remaining, however, of the 

 same type ; in the Butuan specimens the wings have a yellow tint, 

 which is less developed in other specimens. In the undescribed 

 male the thorax and the scutellum are clothed with shining 

 metallic tomentum. The eyes are united, but there is no distinct 

 differentiation between upper and lower areolets, a character 

 somewhat aberrant in Chrysopilus. 



130. Chrysopilus diplostigma sp. nov. 



A small black species, distinguished by the peculiar abdominal 

 pattern and by the enlarged stigmatic spot of the wings. 



Male. Length of body, 5 millimeters; of wing, 5. Head 

 black, dark gray-dusted on occiput and face; eyes bisected, 

 united on a long line; ocellar tubercle very prominent, bare; 

 antennae short, entirely black, with long, rather thick style; 

 facial bulla shining black, ovate, gray on the sides; proboscis 

 and palpi black, the latter black-haired. Thorax velvety black, 

 rather shining, gray-dusted on sides and on the pleurae ; on dor- 

 sum a trace of golden tomentum ; thorax entirely bare, with some 

 black hairs on the metapleura. Scutellum like the thorax ; meso- 

 phragma black, gray-dusted, with black hairs on the sides; 

 halteres black, the stalk yellowish at the base. Abdomen black 

 and black-haired; strongly shining, even on venter; the tergites 

 have at base a broad velvety black band, which on the terminal 

 segments is reduced to a middle spot ? genitalia black and black- 

 haired. Coxae black, with black hairs; femora black, with nar- 

 rowly yellow tips, and the four posterior ones with yellow 

 bases, broadest on the hind pair; tibiae and tarsi long and dark 

 yellowish; terminal spurs yellow. 



Wings grayish hyaline, with a faint yellowish tinge ; stigmatic 

 spot broad, elongate, dark brown, filling up the entire end of the 

 marginal cell; in addition, and in contact with the stigma, the 

 end of the subcostal cell is dark brown, beginning at the end of 

 the auxiliary vein. The rest of the wing immaculate. Cubital 

 fork only a little longer than it's stalk, destitute of appendix at 



6 Ann. Mus. Nat. Hung. (1912), 10, 449. 



