CATOCALA ERATERCULA. Grote & Robikson. 
Proc. Ent. Soc., Pliila., Vol. VI, p. 24. (1866.) 
Trans. Am. Ent. Soc., Phila. Vol. IV, p. 17, (1872.) 
(PLATE V, FIG. 8 tf.) 
Expands If inches. 
Thorax, greyish white, abdomen grey. 
Upper surface, primaries white, tinged and powdered with brown ; sub-costal and trans- 
verse anterior lines line and distinct, transverse posterior line produced outwardly in a single 
tooth opposite the reniform ; a brown median shade starts from the inside of transverse pos- 
terior line at the second median veinlet, from thence passing inwards and upwards to the 
costa ; the reniform, which is embraced within this brown space, is edged exteriorly and on 
side towards base of wing with a dark heavy line, but the sides towards the costal and interior 
margins have no defined boundary ; sub-reniform small, white and closed ; sub-terminal band 
or line white, from which to exterior margin the intervening space is brown ; sub-apical dash 
distinct and dark brown; fringes brown. 
Secondaries yellow, marginal band unusually broad and abruptly terminated near the 
second median. veinlet, but is replaced near the anal angle by an oval spot ; mesial band narrow 
and curved upwards where it terminates at the abdominal margin ; some grey hairs mixed 
with the yellow at base of wings; fringes blackish, except at apex, where they are white. 
Under surface pale yellow, darkest near base; very broad uninterrupted marginal and 
narrow median bands ; no indication of sub-basal of primaries. 
The description and figure were taken from an example captured at Providence, R. I., 
and for which I am indebted to Mrs. Bridgham of New York. 
The types are in the Museum of the American Ent. Society. 
CATOCALA UNIJUGA. Walker. 
(PLATE V, FIG. 9 Ud 
Expands 3 inches. 
Thorax above, dark grey, abdomen light brown ; beneath white. 
Upper surface, primaries pale grey, densely powdered with black atoms; all the trans- 
verse lines geminate ; reniform large and doubly ringed with black ; joining the reniform 
interiorly is a white space ; sub-reniform pale ; sub-marginal crescents large and distinct ; 
fringes white. 
Secondaries red ; marginal and mesial bands taper towards the abdominal margin which 
the latter does not quite reach ; apical spot white ; fringes of exterior margin white, of interior 
grey. 
37 
