AMEKICAN LEPIDOPTERA. 53 



terminal space and sometimes it does not. Sometimes yellow or 

 olivaceous replace the gray, or there may be a mottled effect pro- 

 duced l)y the presence of all three. 



Coquillettii, neocula, cretata and behrii have neither orbicular nor 

 reniform. Of the orbicular no trace exists ; the reniform is some- 

 times obscurely indicated in individual examples, but usually there 

 is not even a trace. 



Coquillettii differs at once from the others in having the second- 

 aries black, with white fringes. The primaries have a yellow tinge, 

 two dusky clouds on the costa and a broken dusky s. t. band. The 

 front is full and a little bulging, but hardly protuberant. 



Neocula has the dusky outer band narrow, the basal and median 

 space almost unbrokenly white. There is, occasionally, a small cos- 

 tal cloud, and very rarely a trace of a basal cloud ; but these are 

 exceptional and so poorly marked that they are readily overlooked. 

 The front is convex and a little roughened, but hardly protuberant. 



Cretata has the outer gray shading broader, more defined. There 

 is more or less gray along the costa, sometimes extending to base so 

 as to make visible the t. a. line in the costal region. The two last 

 named species are very closely allied, but from the series at hand 

 seem to be distinct. The front is a little protuberant in some exam- 

 ples, but usually convex only. 



Behrii has the outer shading much more aggressively marked 

 with rougher, black scales, the s. t. line slender, blue, marked by 

 black spots and shades. The t. a. line is gray and completely de- 

 fined across the wing. The front is scarcely convex. 



^legantula, virginalis and binocnla lack the orbicular, but have 

 the reniform present and obviously mai-ked in all examples. 



Elegantnla is easily recognized by the continuous dark band 

 across the middle of the wing, beyond which it is dusky. It is thus 

 almost half white, half dusky and always readily distinguished. 

 The front is conically protuberant but not truncate at tij). Never- 

 theless it is close to the Conacontia type. 



Virginalis has a yellow median shade band which is traceable in 

 all examples and usually obvious, though by no means contrasting. 

 The entire wing has a somewhat yellowish tint beyond the middle, 

 the dusky oblique shade being narrow and broken. The reniforn) 

 is a solid round gray spot, with a narrow white annulus. The front 

 is convex and tends to become protuberant. 



Binocnla is similar to the preceding, but with the yellow band 



TRANS. AM. ENT. SOC, XXVII. SEPTEMBER, 1900. 



