360 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.43. 



view, but showing a thin silvery bloom in oblique view. The wide 

 parafacials are silvery-white pollinose, with a soft black vitta run- 

 ning from the middle of anterior eye-margin to apex of second anten- 

 nal joint, and a black spot at lower front comer of eye; the latter 

 appears in oblique view as though continued across parafacial, and 

 in very oblique view the entire parafacial may appear soft black. 

 Cheeks silvery; occiput same, the narrow occipital orbits faintly 

 golden. Thorax, scutellum and abdomen black, golden pollinose; 

 pleurae with four golden pollinose spots; mesoscutum with three 

 heavy black vittse, the middle one continued over scutellum; dorsum 

 of abdomen brassy pollinose, with dark median vitta and dusky 

 marmorations on sides of the four main segments, anal or fifth seg- 

 ment wholly reddish-yellow; on venter the golden pollen is very 

 distinct and deeply colored, leaving a blackish hind border to the 

 four main segments. Legs black. Wings clear, long veins deeply 

 yellow, crossveins blackish, faint cloud on small crossvein. Third 

 vein bristly one-half way to small crossvein. In both wings the hind 

 crossvein has a very short stump on inner side of proximal curve. 

 Tegulae white. 



Type.—Csit. No. 15204, U.S.N.M. 



CHLORONESIA, new genus. 



Evidently belonging to the Sarcophagidse, in the group of Sar- 

 conesia and BlepTiaricnema. Differs from Sarconesia in the ground 

 color of entire body and legs being metallic green, facialia with only 

 single row of hairs, vibrissas close on oral margin, front of female 

 less than eye-width, cheeks about one-fifth of eye-height. 



Parafacials beset with a few short hairs. Facialia cUiate with 

 weak bristles more than one-half way up. Arista pubescent on 

 basal one-half. Eyes bare. A pair of weak ocellar bristles. Two 

 orbital bristles in female Frontal bristles descending below base 

 of antennae, but not reaching base of third joint. Proboscis short, 

 palpi well developed. Second antennal joint short; third joint long 

 and equilateral, reaching almost to vibrissas, which are exactly on 

 oral margin. Epistoma cut off, but the edge turned so as to make 

 oral margin slightly prominent. 



Two sternopleural and three postsutural bristles, sometimes a 

 small third sternopleural. Scutellum with one lateral and a long 

 straight nondecussate apical pair of bristles, between the lateral 

 and apical is a short bristle, and between the two apical is a sliort 

 submarginal pair of straight bristles. No bristles on doreum of 

 first two abdominal segments except at sides; third and fourth seg- 

 ments with a marginal row. Legs neither slender nor elongate, 

 middle and hind tibiae with strong bristles. Apical cell open imme- 

 diately before wingtip, fourth vein continued in slight stump at 



