^ET.23 FLIES OF THE FAMILY SAPROMYZIDAE— MALLOCH 3 



definite decision as to the identity of Macquart's species may depend 

 upon the discovery of his type. 



DEUTOMINETTIA APPROXIMATA, new species 



Male.— Glossy fulvous yellow, the center of frons shining; an- 

 tennae and palpi yellow. Both cross veins of wings distinctfy, but 

 not broadly, clouded, costa apicaily slightly suffused with brown. 



Anterior orbital bristles over half as long as posterior pair ; ocel- 

 lars minute; postverticals long; arista plumose; face almost flat, 

 glossy, orbits whitish dusted. Thoracic bristles long and strong^ 

 anterior sternopleural very short and fine. Mid tibia with about 

 seven short posterior bristles; mid femur without anteroventral 

 bristles. Inner cross vein a little beyond middle of discal cell. 



Length, 6 mm. 



One male, Trinidad Eiver, Panama, May 2, 1911 (A. Busck). 



Type.— Cat No. 40965, U.S.N.M. 



DEUTOMINETTIA BIMACULATA, new species 



Male and female. — Testaceous yellow, distinctly shining. Orbital 

 stripes glossy, ceasing at anterior orbitals, a velvety deep black mark 

 on each side from anterior orbital to anterior margin of frons which 

 extends posteriorly, forming a wedge-shaped mark between orbit and 

 eye almost as far as posterior bristle ; paraf acials silvery. Abdomen 

 with a faint dark apical line on each tergite in male. Legs yellow. 

 Wings hyaline. Halteres yellow. 



Frons slightly widened anteriorly, with some microscopic surface 

 hairs, all bristles long and strong; arista plumose; face slightly 

 bulging out over mouth, a little convex ; eye narrowed below, slightly 

 emarginate on lower half behind; two strong bristles on lower part 

 of occiput. Thorax with three postsutural dorsocentrals, about eight 

 series of introdorsocentral hairs, the intra-alar strong, disk of 

 scutellum black setulose, and the anterior sternopleural bristle very 

 weak. Fore femur without an anteroventral comb; all tibiae with 

 preapical dorsal bristle, mid pair each with a series of eight or more 

 distinct posterior setulae. Inner cross vein of wing close to middle 

 of discal cell; apical section of fourth vein but little longer than 

 preceding section ; first posterior cell slightly narrowed apicaily. 



Length, 6-7 mm. 



One male, Trinidad Kio, Panama, May 1, 1911; allotype and one 

 male paratype, same locality, March 16 to 23, 1912 (A. Busck). 



Type.— C2it. No. 40708, U.S.N.M. 



Genus ASILOSTOMA Hendel 



This genus was erected for the reception of a single species, ender- 

 leini Hendel, from Bolivia. Before me there is a species undoubt- 



