96 Annals of the Carnegie Museum. 



which is very minutely denticulated, and a much less marked con- 

 vexity in the third fourth, apex of the appendage rounded ; in profile, 

 the proximal two-thirds of the appendage is straight, the distal third 

 slightly bent downward. 



Inferior appendages black, as long as the superiors, in profile each 

 is thick at the base, rapidly contracting to one-third length, whence 

 the remainder is slender and almost straight until the distal fifth, 

 which is curved upward toward the superior ; in dorsal or ventral 

 view the basal third is much wider than the remainder, which latter 

 very gradually tapers distally, the extreme apex being very slightly 

 enlarged and rounded. 



Wings almost clear ; stigma almost black, or dark brown surmount- 

 ing two cells, or more, or slightly less, proximal and distal edges par- 

 allel, paler; 9-1 1 postnodals on the front wing, 8-10 on the hind. 



9. Differs from the male as follows: rear of the head in most of 

 the examples obscure and more or less pruinose, but apparently origi- 

 nally yellow in young stages ; prothorax pale brown with a central and 

 a lateral (blue ?) spot, later with a pair of metallic-green dorsal spots ; 

 thoracic dorsum pale brown, a metallic-green mesipisternal stripe 

 attaining the anterior mesothoracic margin below and to, or not quite 

 to, the antealar sinus above, slightly narrower in its middle, where it 

 is about .25 mm. wide and distant from the mid-dorsal carina by its 

 own width, nearer to trie carina at its ends ; sides of the thorax yellow- 

 ish, especially below, a mesepimeral metallic-green stripe half as wide, 

 or less, as the mesepisternal stripe, not reaching to the antealar sinus 

 or the mesinfraepisternum ; pectus yellowish, an elliptical black met- 

 epimeral spot on the superior side of the anterior end of the latero- 

 ventral metathoracic carina ; in one female all but the hind fourth of 

 the mid-ventral metasternal groove is filled with a black stripe ; ab- 

 dominal segment 1, in earlier stages, apparently metallic-green on 

 dorsum, its sides and a mid-dorsal basal spot yellow ; 8-10 obscure 

 dark brown, becoming pruinose later, their sides yellowish ; abdomi- 

 nal appendages half as long as 10, brown becoming black ; genital 

 valves very minutely denticulated, their " palps " reaching back to the 

 level of the tips of the appendages, or slightly less ; 8-1 1 postnodals 

 on the hind wing. 



Abdomen cT 24-29, 9 23-27; hind wing cP 16-19, 9 16. 5-19; 

 costal edge of stigma, front wing cP9 1.1-1.25 mm. 



Habitat. — Brazil : Chapada, by H. H. Smith ; 13 cT and parts of 



