176 FIFTH REPORT OF THE ENTOMOLOGICAL COMMISSION. 
strongly dentate. Hind wings bright yellow, median band rather narrow, gener- 
ally rectangular at bend towards inner margin; marginal band broad, broken or 
unbroken. Expands 70 to ><>""". Habitat, Nebraska to Illinois, and southward, 
west to Arizona. Var. desdeiitoita lly. Edw. Wood brown with lighter shades; reni- 
forui spot brown; subreniform lighter. Hind wings rich orange. Var. calphurnia 
lly. Edw. Fore wings with a greenish tint, lines faint. Bind wings wholly black, 
with the exception of a central cloud, a broad marginal band, and a central narrow 
hand, which are orange. Unlet adds that the species is a very variable one, the 
median hand showing a tendency common to all the Catocalro, as it narrows, to become 
rectangular at the bend near the anal margin. 
244. Caiocala verrUliana Grotc. 
This species extends from California to Texas, its food-plant being 
tbe scrub oak. (Hulst.) 
Moth. — Fore wings gray, shaded with blackish; a diffuse black basal dash; trans- 
verse anterior line densely shaded with black; reuiform dot small, yellowish, more 
or less distinctly double-ringed; transverse posterior line much as in C. blandula. 
Hind wings bright red, median black band narrow, quite even, not reaching the 
aual margin; marginal baud narrow. Expands 50 to GO 111111 . C. ophelia Hy. Edw. 
differs only in having somewhat heavier lines on the fore wings. C. verrUliana is 
always described with bright red hind wings. C. violeata Hy. Edw. is somewhat 
larger and has more black. Var. votria Hulst has clear yellow hind wings, and in- 
habits Arizona. 
245. Caiocala ultronia (Hiibuer). 
The caterpillar, first described in Packard's "Guide to the study of 
Insects" (p. 317, pi. 8, fig. 4), is said to feed on the wild cherry, plum, 
dogwood, and live oak. Mr. Saunders has bred it in Canada from the 
plum, finding it usually less than half grown in June. One caterpillar 
pupated June 21; it remained in this state for twenty-four days, the 
moth appearing July 15. The larva we reared in Maine pupated July 
15 in an earthen cocoon, the moth appearing August 2. As Mr. Saun- 
ders's description of the caterpillar is more detailed than ours, we quote 
it below: 
Larva. — Head medium sized, flattened in front, slightly bilobed, dull bluish gray, 
with the front flattened portion margined with a purplish-black stripe. Under a 
lens the surface appears thickly dotted with pale and dark-colored dots and streaks, 
with a few short, pale, scattered hairs. Body above dark, dull, grayish brown, ap- 
pearing under a magnifying power thickly studded with brownish dots on a paler 
ground. Second segment a little paler than the others. A subdorsal row of dull 
reddish tubercles, one on each segment from second to fourth inclusive, but behind 
this there are two on each ring to the twelfth segment iuclusive, the anterior one 
being the smallest, while the posterior and largest tubercle is more decidedly red, all 
encircled with a slight riug of black at their base. On the ninth segment above 
there is a prominent, nearly upright, stout, fleshy horn, about one-twelfth inch long, 
pointed, and similar in color to the body, but with an irregular grayish patch at 
each side. On the twelfth segment the two hinder tubercles are somewhat increased 
in size and united by a low ridge, tinted behind with deep reddish brown; there is 
also an oblique stripe of the same color extending forward from the base of the 
tubercles to near the spiracle on this segment. The terminal segment is flattened 
and has- a number of small, pale reddish and blackish tubercles scattered over its 
surface. Iu front of each of the smaller subdorsal tubercles, from fifth to twelfth 
