208 ENTOMOLOGICAL NEWS. [ May, 712 
very slender, faintly greenish, almost transparent. Head small 
and of the body color. All were found resting lengthwise along 
the underside of the small locust thorns, well color-protected. 
A large ilia-like egg found on the underside of hickory 
bark, hatched on the 30th of April. The young larva was 
slender, gray with a tinge of green and with black cross bands. 
Very noticeably bristly. Head black. It refused hickory and 
fed on bur oak but died without moulting. In searching for 
Catocala eggs under the bark of shagbark hickory we had oc- 
casionally found dead eggs, large and elliptical, apparently of 
ilia. The live egg mentioned and found the winter before, 
gave an ilia larva. 
Why are these eggs laid on a tree whose leaves the worm 
can never eat? Dead egg shells are not uncommon but never in 
crowded or overlapping masses as in the case of palaeogama 
and other hickory feeders. 
A minute, distinctly reddish egg, ribbed as in Catocala, and 
found under hickory bark, hatched but was lost. It was prob- 
ably judith. 
The ilia and other eggs for rearing, were kept from hatch- 
ing for nearly a month, on a cold cement floor and the experi- 
ence was the same as in past years, the larvae did not thrive. 
The young ilia larvae feed best on bur oak buds. They often 
refuse the leaves till they are well grown. The first imago of 
Actias selene cut through its cocoon, May 6th. 
The cocoons of Caligula cachara, Cricula trifenestrata, An- 
therea roylei and Actias selene were furnished the senior author 
by Mr. James L. Mitchell of Indianapolis. An overlapping 
mass of white eggs, found under hickory bark, hatched on the 
oth of May. 
Eggs of Catocala innubens began hatching May 7th and 
eggs of C. flebilis, furnished by Mr. Ernest Schwarz of St. 
Louis, on May toth. Eggs of C. retecta began hatching on 
May 11th and those of C. vidua and C. nebulosa on the 12th of 
the same month. Part of the retecta eggs were furnished the 
senior author by the junior and all of the mebulosa by Mr. 
Harold Davenport. 
