1884.] Entomology. 727 
The tubercles are dirty-white, concolorous with the rest of the 
. Length 13m 
m. 
_ Sept. 14-16 the caterpillars made singular boat-shaped flattened 
_ oval cylindrical cocoons closely attached to the surface of the 
leaves; they were spun with silk, but covered closely on the in- 
_ side with bits of oak leaves. The pupa appeared as soon as the 
| was completed, Sept. 15. The moths appeared May 31 
and June 1 of the following year. —A. S. Packard, Jr. 
An AFRICAN SOCIAL CATERPILLAR. —At the meeting of the 
Linnean Society of London, of March 20th, Lord Walsingham 
exhibited a large and remarkable nest of a species of Anaphe 
from Natal, containing a packed mass of cocoons, with specimens 
_ Of the moth and her larva. The nest and living larve were re- 
_ @ived in August. Many of the larve remained in the nest, but 
others, in companies of from twenty to forty, occasionally marched 
_ out, moving in closely serried ranks, much after the manner of 
_ the larvee of the procession moth. From December to February 
2 as the individual silky cocoons, markedly differ. The species of 
; Gold ¢ 
ANTENNAE OF A BEETLE UsED as DEFENSIVE Wearons.— The 
Senus Scorpionus (Cerambycidz) of coleopterists, is so called on 
&count of the peculiar shape of the last joint of the antenne 
long and half as wide across the,elytra. They are noc- 
