OF WASHINGTON, VOLUME XVIII, 1916 95 



and tip of probosis yellow. Front nearly as wide as either eye, outside of 

 the frontal row, a row of weaker bristles, the three uppermost simulating 

 orbital bristles. Frontal vitta, sides of front and the parafacials gray 

 pollinose, faintly tinged with yellow, as viewed from above. Thorax and 

 scutellum black, bronzy gray pollinose, thoracic vittae indistinct. Median 

 abdominal vitta blackish, middle tibiae on the outer side bearing a single 

 bristle near the middle. Apical cell ending in the costa close to the extreme 

 wing tip. 



Described from a single male specimen taken at Miami, Flor- 

 ida, October 27th, by Dr. C. H. T. Townsend, after whom the 

 species is named. 



Holotype: Cat. No. 20176 U. S. N. M. 



Winthemia okefenokeensis, new species. 



Length 8 mm. Black, gray pollinose. Front in male about three-fifths 

 as wide as either eye, frontal vitta opaque brownish black, wider than 

 either side of front. Frontal row of bristles descending to base of third 

 antennal joint, outside of these scattered bristly black hairs. Para- 

 frontals and sides of face silvery gray pollinose, the bristly hairs on lower 

 half of parafacials irregularly disposed. Cheeks about one-fifth the eye 

 height, palpi yellow. The third antennal joint faintly tinged with rufous 

 at its base, about two and one-fourth times as long as the second. 



Thorax black, golden gray pollinose, marked with four broad black vit- 

 tae. Four postsutural and three sternopleural macrochaetae. Scutel- 

 lum wholly black, bearing three pairs of long marginal macrochaetae and a 

 shorter -cruciate apical pair. Discal scutellar bristles present. Legs 

 black, the hind tibiae ciliate with bristles of equal length, middle tibiae 

 bearing a single bristle on the outer side near the middle. Front tarsi 

 greatly dilated, the pulvilli longer than the last tarsal joint. 



Sides of the first three abdominal segments and the fourth segment 

 reddish yellow. Abdominal macrochaetae confined to a marginal row upon 

 the third and fourth segments. Hairs of abdomen long, depressed. Venter 

 of the third and fourth segments beset with a distinct patch of long bristly 

 hairs, on either side of the median. 



Base of wings and along the costa to the tip of the first longitudinal 

 vein tinged with yellowish. Apical cell open, the third longitudinal vein 

 bearing one or two bristles at its base. 



Described from a single male specimen taken in June, 1912, on 

 Billy's Island, in the Okeefenokee Swamp, Georgia, by Mr. J. 

 Chester Bradley. 



Holotype: Cat, No. 20054 U. S. N. M. 



Amobia utahensis, new species. 



Length 13 to 14 mm. Silvery gray pnllinose species, head slightly 

 wider than thorax, front at base of the antennae, as vk-wed from the 



