118 G. H. TYLER TOWNSEND. 



rochfetfe. Legs blackish except femora, which are light reddish yellow; pulvilli 

 small, smoky whitish. Wiugs grayish hyaline, tegulpe pearl-white, halteres tawny. 

 Length of body 53 mm. ; of wing 4J mm. 



Described from oue specimen ; So. Florida (Chas. Robertson). 



GIIVGL.YMIA n. gen. 

 Small species; belongs in Thryptoceratinje. Head rectangular in 

 profile, about twice as high as long; front prominent, about same 

 width as face, occupying one-half width of head in male, slightly 

 narrowed at vertex ; frontal bristles descending nearly to base of 

 third antennal joint, rather sparse, vertical bristles strongest and 

 with two next on each side directed backward, the second pair from 

 vertical bristles stronger than the first i)air, the remaining bristles 

 weaker and jK)t directed backward ; two orbital bristles in % di- 

 rected forward. Face nearly perpendicular, epistoma hardly promi- 

 nent ; facial depression about two-thirds width of face, narrower 

 above than below, shallow ; facial ridges bare, except two or three 

 very small bristles just next vibrissas, constriction very slight; sides 

 of face narrow, bare ; cheeks narrow, about one-fifth of eye-hight, 

 somewhat hairy posteriorly, with bristles on lower border ; vibrissse 

 strong compared with the other bristles, not decussate, barely meet- 

 ing, inserted at some distance from oral margin, but on a line with 

 its upper border, the oral margin being Q-shaped between the vi- 

 brissse. Eyes bare, descending well short of vibrissae. Antennae 

 about as long as face, inserted high, first joint short, second a little 

 elongate, third not three times as long as second, apex rounded, the 

 posterior apical corner cut off; arista longer than third joint, micro- 

 scopically pubescent, of about same thickness throughout, distinctly 

 3-jointed and geniculate, the second joint strongly elongate, fully 

 two-thirds length of final joint. Proboscis considerably longer than 

 hight of head, slender, sharp or pointed at tip, without labella, 

 straight below geniculation ; palpi rather long, very slender, slightly 

 thickened at tip. Thorax as wide as head ; scutellum with an apical 

 and lateral pair of macrochsetae, the former reaching about to middle 

 of second abdominal segment. Abdomen not wider than thorax, 

 elongate-elliptical, slightly vaulted, first segment not shortened ; 

 raacroch?et?e only marginal or submarginal, absent or very weak on 

 first segment ; hypopygium exserted. Legs slender, moderately 

 long, not bristly, metatarsi shorter than following joints together ; 

 claws and pulvilli very short. Wings a little longer than abdonien, 

 with small costal spine, fir.st vein spined its whole length, third vein 



