52 PROCEEDIFGS OP THE NATIONAL MUSEUM vol. 79 



FeTndle. — Unknown. 



Type.— MvilQ, U.S.N.M. No. 43350, from Lima, Pern. 



Described from 6 specimens. Four in the United States National 

 Museum from Lima, Peru, December 27, 1912, and January 11, 1913 

 (C. H. T. Townsend). Two in the American Museum of Natural 

 History, 1 from Fort Eandolph, Canal Zone (C. H, Curran), and 1 

 from Chapada, Brazil (H. H. Smith). 



In the development of tlie fore tarsi the species approaches W. 

 okefenokeensis rather closely but can be separated very readily by 

 the characters mentioned in the key. I have been unable to associate 

 the female sex in the material examined. 



(32) WINTHEMIA OKEFENOKEENSIS Smith 



Winthemm okefenokeensis Smith, Proc. Ent. Soc. Washington, vol. 18, p. 95, 



1916.— CuBEAN, Dipt. Porto Rico, p. 108, 1928. 

 Okea okefenokeensis Smith, Townsend, Jus. Inse. JMenst., vol. 4, p. 74, 1916. 



The intermediate joints of the front tarsi strikingly flattened and 

 obliquely expanded in the male, ordinary in the female; thoracic 

 stripes separated on entire length by pollinose bands of nearly equal 

 width; abdominal segments 2 and 3 gray pollinose or subpollinose 

 to the hind margins. 



Male. — Front (before ocelli) 0.192 of the head width (average of 

 five: 0.18; 0.19; 0.2; 0.2; 0.19) ; parafrontals gray pollinose to vertex, 

 moderately haired outside of frontal rows; median stripe not much 

 narrowed behind, at antennae about as wide as one parafrontal; 

 inner verticals moderately developed, the outer ones about three- 

 fourths as long ; orbitals none ; ocellars rather short but usually quite 

 distinct (absent in one specimen) ; frontals 10 to 14 in number, ex- 

 tending to level with base of third antennal joint, the upper bristles 

 stopping at apex of triangle not much reduced in size, erect or 

 slightly reclinate; face gray pollinose, the sides more silvery and 

 sparsely haired to near lower extremity ; antennae fully three-fourths 

 the length of face, black, the apex of second and base of third joint 

 reddish, the latter one and one-half times the length of second; 

 arista reddish, hardly exceeding the length of antennae, slender 

 beyond proximal third, basal joints short ; palpi yellow, more or less 

 infuscated basally and thickly black-haired; cheeks gray pollinose 

 on red ground color, about one-seventh the eye height; beard white. 



Thorax black, gray pollinose ; mesonotum marked with four broad 

 black stripes, outer ones not interrupted at suture; scutellum red on 

 apical half or more, dusted with uniform gray or whitish pollen; 

 calypters white. 



Abdomen with the sides of the three basal segments and the fourth 

 wholly reddish yellow; the gray pollen on the anal segment nar- 

 rowing from the sides toward the middle above; segments 1 and 



