516 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.43. 



ventral surface in both sexes on hind tibiae; wings clear, costa to 

 about two-fifths the wing length in female, about one- third of wing 

 length in male, first division more than twice as long as other two 

 together, fork of third vein indistinct, the branches very close espe- 

 cially in female and nearly fused ; fringe close and short, barely longer 

 than diameter of costal vein, fourth vein very slightly up-curved 

 at apex, ending distinctly in front of wing tip ; halteres yellow. 



Length, 1-1^ mm. 



Two specimens, Manila, Philippine Islands (W. A. Stanton). 



Labelled "Phora nigriceps, Lw." A manuscript label states that 

 there is "a large series in alcohol," but I have been unable to locate 

 them. Allied to fasciata Fallen, but distinct in having only one row 

 of posterior tibial setulse and four scutellar bristles in female. It 

 differs from rufa Wood in color and in having a longer arista. 



Type.— C&t. No. 14909, U.S.N.M. 



PARASYNEURA, new genus. 



Frons broad, with four procluiate bristles and three rows of four 

 frontal bristles, ocelli distinct, ocellar triangle raised, frontal suture 

 distinct, antennae round, arista long, dorsal; thorax as in ApMo- 

 chseta, abdomen in female with the first and second segments much 

 elongated, ovipositor not much exserted, fleshy; wings with costa 

 very long, the third vein unforked; mediastinal vein present. 



Type of the genus. — Parasyneura rotundipennis, new species. 



PARASYNEURA ROTUNDIPENNIS, new species. 

 Plate 39, figs. 1-3. 



Female. — Yellow ; frons broader than long, the lower pair of post- 

 antennal bristles much smaller than the upper; antennae brown, of 

 moderate size, arista distinctly pubescent, nearly twice as long as 

 frons, palpi clear yellow, strongly bristled, thorax with two dorso- 

 central bristles, scutellum with two bristles, mesopleura bare; first 

 and second abdominal segments of about equal length, occupying 

 two-thirds of length of abdomen, yellow, the second with what 

 appears to be an orifice set in a depression at base, third segment 

 black, opaque, a small rounded flap protruding from under the 

 apex of second segment of same color, fourth segment yellow, fifth 

 and sixth infuscated, the three of equal length, ovipositor as in 

 ApJiioclixta, lateral venter visible from above from end of first seg- 

 ment to end of third, membranous; wings of moderate length 

 rounded at tip, costa to about three-fourths the wing length, third 

 vein unforked, first division of costa about one-half the length of 

 second, fringe fine and sparse, fourth vein nearly obsolete, very short 

 and traceable to where it ends much in front of tip of wing, fifth 

 vein widely separated from fourth, distinct at base, but obsolete at 



