CATOCALA ROBINSON II. Grote. 
Trans. Am. Ent. Soc., Yol. IV., p. 20, (1872). 
(PLATE IX, FIG. 1, <J.) 
Expands 2^ inches. 
Head and thorax, above, whitish grey ; abdomen blackish. Beneath, thorax white, abdomen white, 
powdered with grey atoms. 
Upper surface ; primaries whitish grey; transverse shades very faint; transverse lines narrow and black; 
reniform ordinary size ; sub-reniform open. 
Secondaries black, greyish at base ; fringes white. 
Under surface; primaries black; a small white basal patch; a narrow white, sub-terminal band which 
becomes almost obsolete towards the interior margin ; a white median band extending trorn costa to half way 
between the latter and interior margin. 
Secondaries, basal third white, rest black with a narrow white mesial band. Fringes on all wings white. 
Habitat. New England, Middle and Western States to the Mississippi. 
Somewhat rare, and distinguishable from all other black-winged species by the peculiar pale frosted 
appearance of the upper surface of primaries. 
CATOCALA IlETECTA. Grote. 
Trans. Am. Ent. Soc., Yol. IV, p. 4, (1872). 
(PLATE IX, FIG. 2, <?.) 
Expands 2§ inches. 
Head and thorax, above, grey ; abdomen blackish grey. Beneath white. 
Upper surface; primaries light grey, transverse lines black and distinct; reniform surrounded by a 
double line; black sub-apical dash; two other black dashes, one crossing the transverse anterior line, and the 
other the transverse posterior line, towards the interior margin. 
Secondaries black, with broad white fringes. 
Under surface nearly the same as in C. Desperata, to which this species, though smaller, is closely allied. 
Habitat. New England, Middle, and doubtless other of the United States. 
Compared with C. Desperata and C. Flebiiis, it differs in the ground colour of primaries, being brighter 
and of a less bluish cast; the black shades sharper, not so spread or suffused ; and in the greater depth of the 
white fringe of secondaries. 
It is a rare species, and has generally, heretofore, been confounded with C. Desperata. 
CATOCALA FLEBIL1S. Grote. 
Trans. Am. Ent. Soc., Yol. IV, p. 4, (1872). 
(PLATE IX, FIG. 3, J 1 , 4, variety cF) 
Expands 2§ inches. 
Head and thorax, above, grey; abdomen blackish. Beneath white. 
Upper surface; primaries bluish grey; transverse lines black and well defined; reniform brown and not 
very distinct ; sub-reniform open; the sub-apical dash is continued directly across the whole length of the 
wing to its base. 
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