AMERICAN DIPTEJR \. 383 



SY\Kl IM gen. nov. 



Wings with the third vein simple, not bifurcate. Front k>ng, the 

 sides nearly parallel ; with three transverse rows of reclinate bristles, 

 besides the four anterior proelinate ones. Antenna? with the second 

 joint slightly oval, more pointed apical ly, with a dorsal arista. Palpi 

 bristly below. Dorsocentral macrochsetae present. Hind femora thick- 

 ened ; four hind tibia' each with two long apical spurs, ami more or 

 If-- spinulose along the outer edge. Mediastinal vein indistinct, 

 empodia and pulvilli small but distinct. 



This genus comes close to Metopina in some respects but is readily 

 distinguished by the oval antennas, the long spurs on the tibiae and 

 the different form of the front, the thickened femora, etc. It also 

 resembles Pachyneurella but differs by its well developed tibial 

 spurs, much lighter fourth to sixth wing veins, and the normal form 

 of the ovipositor in the female. 



The generic diagnosis is based upon Phora cocdphila Coq. which 

 is the only described species possessing the above combination of 

 characters. It is quite possible, however, that Phora exempta Beck, 

 belongs with cocciphila in the present genus. Of this I cannot 

 positively say, as I have not seen the European exempta. 



Syneura cocciphila Coq. 

 Cocquillett, Canadian Entomologist, xxvii, 106. 



Black, subshiniug, the under side of the third antennal joint and the palpi 

 yellowish; hal teres whitish. Front legs, including the coxae, light yellow, the 

 others brown. Wings whitish hyaline, costal vein not extending to the middle 

 of the wing, ciliate with very short bristles; apex of first vein near the last fifth 

 of the distance between the humeral cross-vein and the tip of the third vein : 

 fourth vein nearly straight, the cell in front of it nearly twice as wide as the 

 narrowest part of the one behind it. Abdomen bare in both sexes. 



Length 75-1.25 mm. 



Types. Twenty five specimens in the collection of the Depart 

 meut of Agriculture, bred in October and November, from larva' 

 infesting dead adults of Teerya purchasi, collected by Mr. C. H. T. 

 Townsend at Magdalena, Victoria and Tamaulipas, Mexico. 



By the kindness of Dr. L. O. Howard, I am enabled to examine 

 some of the types. I do not know any member of the family in 

 which the first and second veins end so near together. The heavy 

 veins are very short and the light ones relatively long without any 

 marked curves. The thorax is provided with a single pair of dor- 

 socentral macrochaetse and two marginal scutellar bristles. 



TRANS. \M. KNT. SOC. XXIX. DECEMBER. 1903 



