REPORT OF THE ENTOMOLOGIST. 83 
the branch. The larvx are social in habits, and feed together in com- 
panies, attaining their full size in Aug- Fig. 43. 
ust and September when they bury 
themselves six or eight inches in the 
earth, to change to pups, and the fol- 
lowing summer make their appearance 
in the perfect or moth state. The fe- 
males are of a yellow-ochre color, = 
crossed with a dark band, and have a white spot 
upper wing. The males are much smaller, and have somewhat trans- 
parent wings of a reddish brown, having a white spot on the upper wing 
also. 
A similarly formed caterpillar, but of a green color, with black horns, 
shorter prickles, and a yellowish lateral line, shaded near the end with 
rose color, (Anisota (Dryocampa) rubicunda, Fig. 44. 
Fab.,) does considerable injury to the silver ; 
maples in Washington, where there are 
two broods anuually. The mothis a most £73 
beautiful insect, the upper wings being of 4%, 
a delicate yellow and rose, or pink color. 
As both these insects in the larval state are Ha oc A 
more or less gregarious and keep together, they can readily be seen and 
destroyed when feeding on the foliage. 
The tent caterpillar, Clisiocampa Americana, Har., which forms the 
large cobweb-like nests in orchards, in June and July, was very destruc- 
tive in some localities last year. The eggs are Fig: 45. 
laid on the twigs in bunches numbering from oe 
two hundred and fifty to four hundred, placed 
side by side in perfect rows around the twig, 
and are covered with a gummy matter. They 
may be readily seen in winter, when the foliage 
has fallen, and the twigs are bare. The pupaw 
are formed in slight cocoons in crevices of bark, under boards, &c., and 
the insect comes to maturity in twelve to eighteen days. It is of a 
brownish-yellow color, with two oblique rust-brown, and nearly parallel 
lines runuing across the wings. The best method of destroying them is 
to tear down the nests when and wherever found. This can be done 
readily with a long mullen-stalk or a brush of twigs affixed to a long 
pole, antl when the caterpillars are beaten to the gronnd they can be 
crushed, or, as they collect togethe: on the trunks during their last 
molting period, they can be slaughtered in masses. The best remedy 
is to search for and destroy the egg-clusters.in the orchard when the 
trees are leafless. 
Bhe grass or army worm, Leucania wnipuncta, Haw., though it made 
its appearance in some places, was not 
especially troublesome during the last 
season. The eggs are probably deposited 
at the base of perennial grass-stalks, and 
the larve at times appear in immense ¢3%e 
multitudes in the Northern, Middle, and “2% 
Western States, where they destroy grass, ~ 
grain, and other, crops. Leaving one 
field, after having eaten it out, they 
march or crawl to those in the neighbor- 
hood in search of food; hence the vulgar name of army worm. The 
pup are formed in a rude earthen cocoon, and remain as pupe two to 
