INSECTS INJURIOUS TO THE BLACK WALNUT. 333 
13. Catocala subnata Grote. 
This is said by Mr. Angus to feed ou the walnut. The moth is very 
much like C. neogama, but generally larger, with the liues and mark- 
ings more diffuse, and the teeth of the M of the transverse posterior 
line very strongly produced. It expands from 95 to 105 mm , though in 
one case only 70 mm . Mr. Hulst doubts whether this be distinct from 
C. neogama. 
14. Catocala piatrix Grote. 
Mr. Koebele finds that the caterpillar feeds on the walnut, hickory, 
and persimmon. 
Moth. — Fore-wings dark wood-brown, or blackish brown, slightly silky, darker 
shaded in the sub-basal space on the costa, above the discal cell, and subapically . 
the transverse anterior line geminate, the outer line sometimes less distinct ; the 
reniform spot shaded with black; the subreniform pale; transverse posterior line 
with the M prominent, and sinus heavy; subterminal line geminate with grayish be- 
tweeu. Hind wings deep yellow, internal margin and base dusky ; median band not 
much constricted. Expands 85 to 95 mm . Eastern United States. (Hulst.) 
15. Catocala mcestuosa Hulst. 
This is said by Mr. Hulst to. feed on the walnut, but there is no de- 
scription of the caterpillar. 
Moth. — Fore-wings very nearly the color of C. vidua (p. 178); lines diffuse, not 
strongly distinct; transverse posterior line with the M strongly marked; sinus com- 
paratively small; no basal dash; reniform spot reddish; a reddish band beyond the 
transverse-posterior line ; transverse-anterior line clouded with black at the costa, 
and a heavy diffuse black shade from the costa above the reniform through the M of 
the transverse-posterior line to below the apex. Hind wings black, dull gray at base ; 
fringe white, ends of the veins black. Expands 95 to 105 mra . Southern States. 
(Hulst.) 
16. Geometrid caterpillar. 
This caterpillar was observed on a walnut at Brunswick, Me., August 
20. It died in confinement. In this larva ou the abdominal segments 
(except the eighth where they are transverse) there are four dark glassy 
bottle-green piliferous dorsal spots, arranged in a short square. On 
the first abdominal segment they are of equal size, but the two hinder 
ones are on a slight transverse ridge, the ridge being enlarged under 
the tubercles. Ou the second abdominal segment the two hinder pilif- 
erous warts are no larger than the anterior, but are situated on a large 
conspicuous saddle-shaped transverse hump, which is swollen at the 
origin of each tubercle. The caterpillar is further adapted for protec- 
tion from its resemblance to a walnut twig by being deeply notched,, 
each notch like a leaf-scar on the twig. 
In Caripeta angustiorata of the piue, the transverse posterior, saddle- 
shaped ridges bear two posterior piliferous warts. They have a decided 
resemblance to the leaf-scars on the redder parts of the twig, which in 
its ground color the caterpillar mimics. I have observed that this and 
