PHILIPPINE DIPTERA, II 57 



are perfectly straight, placed at equal distances, and slightly 

 diverging toward the end. Discoidal cell very long, the anterior 

 cross vein placed before its middle; second basal cell a little 

 shorter than the anal cell; the basal section of the fourth in- 

 terrupted before its end; anal cell rather acute on the lower 

 angle, its terminal vein being oblique; last section of the fifth 

 longitudinal vein much shorter than the perfectly straight and 

 perpendicular hind cross vein. 

 MINDANAO, Butuan (Baker). 



198. Stylogaster bakeri sp. nov. 



This new species is a very important addition to the oriental 

 fauna, being the first species of this genus known from the 

 Orient. It is named in honor of Professor Baker. It seems to 

 be allied to the recently described S. frontalis Krober, 1914, 

 from Belgian Congo; but it is distinct from that and from 

 any other at present known by the peculiar brush of hairs at 

 the base of the hind femora in the male. 



Male and female. Length of body (without antenna? and 

 without ovipositor), 6.5 to 7.5 millimeters; of wings, 6 to 6.5. 

 Head broader than the thorax, of almost circular outline in front 

 view; occiput flat, a little hollowed above behind the vertex, 

 black, densely gray-dusted, with few whitish hairs and a row of 

 short, bristly white hairs at some distance from the eye border. 

 Eyes reddish brown, about two and a half times higher than 

 broad in profile, with the central interior areolets much dilated; 

 f rons much narrower than an eye, a little narrowed from vertex 

 to antennae, pale yellowish opaque, with a very broad shining 

 black ocellar plate, which with its obtuse fore angle is in con- 

 tact with the lunula, leaving free only a narrow line on sides at 

 the vertex; ocelli placed near the base of this plate, but a little 

 removed from the vertical keel; in the female the frons is dis- 

 tinctly narrower than in the male and entirely occupied by the 

 shining black plate. Face pale yellowish, white-shining, much 

 narrower than the frons, strongly raised toward the middle, in 

 the shape of a longitudinal keel, entirely bare; jowls rather 

 prominent, colored like the face ; mouth opening triangular ; chin 

 short, with whitish hairs. Proboscis thin, much longer than 

 body when exserted, black, with narrowly yellow base and 

 broadly yellow end of lips; no distinct palpi; antennae porrect, 

 first joint very short, whitish, bare; second joint reddish yellow, 

 longer than the first, produced in a lobe on inner side of the 

 third, with short black hairs ; third joint reddish yellow, darkened 

 along the upper border, about as long as the first two joints 



