xxxiii. '22] ENTOMOLOGICAL NEWS 15 



the darker posterior areas on the mesepimeron and on the metepimeron 

 and on the upper part of the metepisternum only slightly or not at all 

 evident, so the pale stripe posterior to the humeral and to the second 

 lateral suture are not as well marked as in the male or are wanting 

 altogether, disappearing in the prevailing pale color of the sides. 



Abdomen similar to younger males ; the dorsal longitudinal black 

 stripe described on 7-9 is faintly discernible as a daiker stripe on 2-9 

 in the female; 8 perfoliate. 



Wings hyaline, more or less yellowish tinged in the basal spaces 

 anterior to A, and along the costal border, especially distal to the nodus 

 and anterior to R; apex to level of stigma dusky, the inner edge dif- 

 fuse; costa yellow except at base, clearest and brightest between nodus 

 and proximal end of stigma, distal to which point it is black; nodus 

 and subnodus more or less yellow ; the other veins dark to black ; 

 stigma burnt sienna (Ridgway), apical fourth or third black; the dark 

 color produced basally along the anterior and posterior borders, espe- 

 cially the former; enclosing veins black. Venational characters below. 

 Legs as in the male. 



Venational characters of both sexes. Antenodals. front wing 17 to 

 19, usually 19; hind wing 13 to 15, usually 14; postnodals, front wing 

 11 to 14, usually 12 or 13; hind wing 12 to 16, usually 13 or 14: triangle 

 front wing with 2 or 3 crossveins, usually 2 ; hind wing 1 ; crossveins in 

 supertriangle front wing to 2, usually 1 ; hind wing or 1, usually 0; 

 cells in subtriangle front wing 5 or 6, usually 5 ; cells in loop posterior 

 to subtriangle, front wing, 2 or 3, usually 2 ; cubito-anal crossveins front 

 and hind wings, 1 ; bridge crossveins front and hind wings 3 to 5, usu- 

 ally 4 or 5 ; triangle front wing followed by 4 or 5 cells, usually 4, then 

 3 or 4 followed by 4 increasing; 2 rows of cells between M4 and Mspl 

 in front and hind wings ; crossveins against the distal transverse side 

 of the anal loop on its proximal side 4 or 5 ; crossveins against the 

 proximal side of the anal loop on its distal side 9 to 11, usually 9. 



Enterprise, Florida, April 22 and 26, 1921, 44 males, 2 

 females, collected by Jesse H. Williamson, for whom this 

 handsome species is named. Type male and allotypc female, 

 taken in copulation, April 26, 1921, in coll. E. B. \Y. 



Both sexes of jcsseana are separated at once from those of 

 aunpcnnis by the darker face and frons, and dorsum of thorax 

 and abdomen. In wing coloration the male differs from 

 auripcnnis in the more intense reddish yellow of the wings 

 posterior to R, the color in auripcnnis being more intense 

 along the costal border. In the females of the two species 

 there is little or no difference in the wings except that the 

 costa basally is darker in both sexes of jcsseana than in the 



