48 E. B. Williamson 



2 males, one "in shady path," Cornell) ; Dutch Guiana (Mus. Berol., i 

 male, M. C. Z.) ; Brazil, Tapajos. Mte. Christo and Barreiras (A. H. Fassl, 

 May, 1920, 3 males, Ris), Rio Janiero, Bom Jesus de Itabapoana (Zikan, 

 November 23, 1904, i female. Ris). 



(iyuacaiitlia iiieiubranalis Karsch 

 6, 9, 20, 21. 25, 26, 27, 30 (as jubilaris), 36, 37. 



Abdomen male 55-63, female 61.5-65; hind wing male 55-60, female 

 59-64 ; superior appendage male 6-6.5, female 6.9-7.2 ; stigma front wing 

 5-5-6.6. 



The auricle in the male has only three, more rarely four, denticles, and 

 between the two posterior (basal) teeth iim\ on the dorsal surface of the 

 auricle are a number of long black hairs. v*^uperior appendage of female 

 narrow, the outer t'xlge nearly straight, widening very gradually on the inner 

 edge from the base to beyond the middle where the maximum width is about 

 .9; from this point tapering gradually in the apical third to the acute apex; 

 a low dorsal median longitudinal keel usually about half as long as the 

 appendage itself and with its extremities about equally distant from the 

 base and the apex of the appendages or more extended on the apex. 



Among the females, and especially among the more recently emerged of 

 these, are individuals with the costal area of the wing colored dark brown, 

 the color continuous basally vvith the usual basal colored area ; this brown 

 longitudinal stripe is bounded posteriorly before the nodus bv R and after 

 the nodus by M,. Between females with this region darkly marked and 

 females with the same area hyaline, all degrees of coloring exist. 



Of the Guacimo, Costa Rica, male. Dr. Calvert noted: "Eyes in life 

 brilliant metallic green." The single male from Rockstone, British Guiana, 

 may owe its dark color to its recently emerged condition, though the blue 

 color on segment 2 was bright and clear. My brief notes made on this 

 specimen are : Eyes and thorax above black, sides of thorax black and 

 light brown ; abdomen above black ; sides of 3-6, below the transverse 

 carina, pale ; 2 with the auricles and spot above bright clear blue. The 

 thorax of this specimen showed no trace of green which was the dominant 

 color in the \'enezuelan specimens described below, and the dorsum especiallv 

 was a deep velvety black. The specimen is fresh, but apparently mature ; 

 equally recently emerged specimens from \^enezuela are green, and I believe 

 the difference is racial rather than individual. The following notes were 

 made from a San Esteban male : Eyes dark green, almost black above, gray 

 below. Prothorax brown with a short transverse green bar near the 

 posterior border. Mesepisternum brilliant green with a black bar. giving 

 the effect of two dorsal green stripes on either side of the dorsum ; black 

 bar darkest below, shading out above ; mesepimeron slightly but very little 

 duller than the mesepisternum ; a black bar on the second lateral suture, 

 .shading out over the metepimeron to brown, with the upper and posterior 

 edges of the sclerite green. Segment i largely green, dorsum apically brown ; 

 2 black, auricles above, a narrow transverse basal line on either side, a 

 narrow longitudinal middorsal line, and a large transverse subapical spot 



