NO. 1938. THE DIPTEROUS FAMILY PHORIDJE—MALLOCH. 513 



APmOCH.ffiTA ORIENTATA, new species. 

 Plate 37, fig. 1. 



Male and female. — Brownish-black, subshining; frons slightly 

 shining, from lower post-antennal bristles to vertex about as long as 

 breadth of frons, four large and nearly equally strong post-antennal 

 bristles, the upper pair on slightly raised tubercles, as widely placed 

 as one-third the width of frons, lower pair occupying about one-fifth 

 of frons width, center pair of bristles in first row lower than post- 

 antennal upper pair and about three times as far from eye margin 

 as outer pair in first row, which are very slightly higher placed on 

 frons than post-antennal upper pair, second row slightly convex, 

 frontal suture indistinct except between post-antennals, where it 

 forms a distinct oval cavity, ocellar tubercule distinct, antennae 

 large and somewhat oval, arista nearly twice as long as frons, more 

 distinctly pubescent on terminal two-thirds, palpi yellow, larger 

 than antennae, ^vith 5-6 long and very strong bristles and several 

 smaller ones; thorax brownish black, distinctly yellowish brown on 

 anterior lateral margins, humeri yellowish, pleurae brownish black, 

 the mesopleurse with numerous distinct hairs, three of which on the 

 posterior margin are distinctly longer than the others, scutellum 

 with four strong bristles; abdomen brownish at base, toward apex 

 and especially the fourth segment yellowish, some scattered long 

 hairs on lateral and posterior margins of segments; legs yellow, 

 posterior four coxse, bases of fore femora, mid femora except apices, 

 and dorsal and ventral surfaces of liind femora brownish, all tibiae 

 with distinct setul^ on postero-dorsal surfaces and mid tibiae with a 

 row on basal half of antero-dorsal surface, those on hind tibiae (9-10) 

 beginning at about basal thirdj rather widely placed and nearly as 

 long as the diameter of tibiae; wings slightly infuscated, costa to dis- 

 tinctly beyond middle, first division barely two-thirds as long as 

 second, third about one-fifth as long as second, fringe very delicate 

 and closely placed, as long as from base of tliird vein to costa, fourth 

 vein leaving third at distinctly in front of fork with a gradual curve 

 and ending with a distinct upward sweep at much in front of -wing 

 tip, fifth vein not much bent and ending nearer to wing tip than 

 fourth; halteres yellow. 



Length, 2^-3^ mm. 



Two specimens, Tjibodas, Mount Gede, Java (Bryant and Palmer). 

 Easily known by the peculiar black surface of the hind tibife, which 

 is bare of hairs between the dorsal ridge and the setulae, as well as the 

 very short first costal division. 



The male has the first costal division nearly as long as the second, 

 the anterior pair of scutellar bristles much reduced, and the anal 



48702°— Proc.N.M.vol.43— 12 33 



