﻿4 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 59 



like arrangement on the constricted portion of femur, postero-ventral 

 surface with seven bristles on basal half, the first of which is very 

 long and the remainder rapidly decreasing in size, on the apical half 

 the bristles are small at commencement of series then rapidly in- 

 crease and form a thick closely placed series of rather curled bristles 

 opposite to the short antero-ventral row, a group of strong bristles 

 is situated at near to tip on posterior surface, mid tibiae with the 

 ventral surface much thickened on apical two-thirds, ventral pu- 

 bescence extremely short and close on basal third and basal half of 

 swollen part, long and shaggy on apical third, one antero-dorsal 

 bristle at apical third and one on dorsal surface at near tip besides 

 the apical spurs, hind femora with a large rounded tubercule at 

 beyond middle on ventral surface, a row of bristles on anterior sur- 

 face which increase in length towards tip and finish on nearly the 

 dorsal surface, anterior surface of the ventral tubercule with numer- 

 ous long bristles of unequal lengths, ventral surface of tubercule 

 with a fasciculus of long strong bristles which curves in a posterior 

 direction and is somewhat curled at tip, posterior surface with long, 

 soft hairs from base to tubercule, hind tibiae bent, the usual two 

 dorsal bristles present, three serial bristles on antero-dorsal surface at 

 from slightly before to beyond middle, the last of which is strongest, 

 and an almost ventral row of seven long bristles from about basal 

 third to beyond apical third, the first and last of which are more 

 widely placed than the others ; wings brownish, small cross-vein 

 distinctly before end of first vein, large cross-vein less than its own 

 length from small cross-vein, nearly straight, and slightly more than 

 twice its own length from end of fourth vein, third and fourth veins 

 convergent ; under scale of calyptra distinctly larger than upper ; 

 halteres yellow. Length 5 mm. 



Easily distinguished from any species in the group by the tubercu- 

 late hind femora. Most closely allied to fasciculata Lw. but very 

 different in leg characters. 



Locality. — Porto Bello, Panama, Feb.-Mar., 191 1 (August Busck). 

 Four males. 



Type.— Cat. No. 14912, U. S. Nat. Mus. 



LIMOSINA FULVA, new species 



Male. — Frons yellow, darker towards vertex, opaque, bristles 

 strong, lateral lower pairs projecting over eye, the center rows con- 

 sist generally of one strong crossed lower pair, a weaker center pair 

 and a pair of very weak, short hairs almost in line with the lower ocel- 



