REPORT OF ENTOMOLOGIST. 
I I 
Whitewash composed of lime one pound, water two quarts, 
was applied to eight patches; one patch hatched well, five patches 
hatched about half of the larvae and two hatched a very few. 
Lime wash in the proportion of two pounds to three gallons 
of water was applied to seven egg-patches all of which hatched 
well. 
Arsenite of lime in which there was about one pound of ar¬ 
senic. to ioo gallons of water was applied to six patches of eggs; 
one patch hatched well, three hatched about half the eggs, two 
hatched but very few. 
Arsenate of lead in the proportion of a pound to five gallons 
was applied to 12 patches of eggs; five patches hatched well, two 
hatched about half of the eggs, two hatched a very few larvae and 
three hatched none. 
From these tests we are encouraged to think that crude pe¬ 
troleum and the stronger emulsions may be used quite successfully 
for the destruction of the eggs before the leaves appear in the 
spring, but whale-oil soap, whitewash, lime-sulfur-and-salt, and 
the arsenical poisons do not give much promise. Our whale-oil 
soap was very hard and probably not of good quality. 
The Choke-Cherry Leaf-Roller (Cenopsis testulana Zell.) 
PI. I. Fig. G. 
This leaf-roller is occasionally quite abundant among the 
small choke-cherrv bushes in the foothills near Fort Collins where 
•/ 
it builds extensive and rather loose webs. It is also an extremely 
variable species. In some the fore wings are pale yellowish brown 
almost without dark markings, in others the fore wings are a deep 
and rather dark rust-brown without any signs of light markings 
while a majority have sulfurous yellow back-ground more or less 
heavily marked with rust-brown. See the third or lower row of 
moths in Plate I. Fig. G. 
BEET WEB-WORM (Loxostege sticticcilis Linn.)* 
[PI. I. Fig. I.] 
On July nth the writer was called to investigate the injuries 
being done by a horde of small striped caterpillars to onions and 
cabbages on a farm near Fort Collins. On visiting the farm in 
question it was found that in the center of a large field there was 
a small area, perhaps an acre, that was above irrigation and which, 
being neglected, had grown up to lamb’s quarter. Upon these 
weeds the worms had fed until the plants were brown and dry. 
The worms then left the dead weeds and marched out like an in¬ 
vading army into the cultivated crops of onions and cabbages 
which they were devouring very rapidly at the time of my visit. 
determined by Mr. Ooquillett through kindness of Dr. L. O. Howard. 
