MORGAN HEBARD 153 



The male subgenital plate shows a most remarkable diversity 

 in its development; the species reticulosa, insularis, fossicauda, 

 aediculata and imitans each showing an utterly different type. 



Key to Males of the Species Based Primarily on Genital 

 Characters '" 



A. Subgenital plate symmetrical. 



B. Subgenital plate with two appendages (styles). 

 C. Styles specialized. 



D. Styles represented by rounded knoljs with dorsal surface thickly 

 covered with minute chitinous spines. 

 E. Tegmina and wings fully developed." 



F. Subgenital plate moderately produced. Styles separated by a 

 broad space. 



G. Pronotum and tegmina with heavy lateral bands of dark 

 brown. (Form decidedly slender. Median portion of distal 

 margin of subgenital plate scarcelj' produced.) 



reticulosa (Walker) 

 GG. Pronotum and tegmina without lateral bands. 



H. Disk of pronotum buffy with an olive tinge, normally 

 finely pictured. Form rather slender. (Median portion of 

 distal margin of subgenital plate variable but never elongate 

 attenuate produced.) punctulata (Bcauvois) 



HH. Disk of pronotum ochraceous tawny, immaculate except 

 for two dark dots. Form less slender. (Median portion of 

 distal margin of subgenital plate scarcely produced.) 



cuprea new species 



FF. Subgenital plate decidedl}- produced (median portion of distal 



margin very elongate attenuate produced). Styles separated by a 



very narrow space. craticula new species 



EE. Tegmina and wings not fully developed (accompanied by a 



distinct broadening of the pronotum and a lessening in the convexity 



of the caudal margin of the same^). 



^ Other features are given only where the genitaha are of similar type and 

 do not afford sufficient differences to separate readily certain of the species. 

 As the male of pundipennis is unknown, that species is omitted from the present 

 key. 



^ Slight reduction is found in a single female specimen of punclulala from 

 the Bahamas. The tegmina and wings in this si)ecimon reach only 1 mm. 

 beyond the apex of the supra-anal plate. In no female of the large scries of 

 the species of the alternate category, lutea, do the tegmina extend beyond the 

 apex of the supra-anal plate. 



^ This interesting feature is discussed on page IGG, footnote 23. 



TRANS. AM. ENT. SOC, XHI. 



