42 
Compound, 2 pints; water 38 pints. Result about the same as in 
preceding experiment. 
These four experiments were repeated and the water added (3 gal- 
lons) 2 hours after instead of before application of emulsion. The re- 
sults in this case were much more satisfactory, destroying most of the 
eggs in the two first experiments and nearly all of the phylloxera in the 
two last to a depth of about 10 inches. 
GENERAL NOTES. 
It was probably owing to the unusually heavy rainfall during last 
winter that insects were comparatively scarce in the early part of the 
season. At least no complaint was noticed or heard during this time. 
While a large number would undoubtedly be destroyed by weeks of 
excessive rains and floods, yet there are such as are not or only slightly 
affected by this element. I may cite here, for instance, such species the 
eggs of which are found upon trees and shrubs during the winter months 
as well as the eggs of locusts usually deposited on dry hillsides. Ona 
visit to Sonoma county during May, the larve of Clistocampa were ex- 
tremely abundant. Two species were found, namely, C. constricta and 
C. thoracica. The first species predominated in numbers, and while 
usually feeding upon deciduous oaks was also found upon Live Oak and 
Quercus agrifolia as wellas various shrubs. In confinement these larvie 
were furnished with food consisting of leaves of Plum and Cherry, but 
for three days they would not feed upon these and readily attacked the 
leaves of Live Oak which were given them, and upon these they were 
raised. CO. thoracica, which is the species defoliating various fruit trees, 
was found chiefly upon willows, but also upon oaks, and here again 
usually upon White Oak, upon which its eggs were found in October. 
This species was bred upon leaves of Prune and Cherry. 
At the end of May of the present year, I received from Mr. F. L. 
Washburn, entomologist of the experiment station at Corvallis, Ore- 
gon, a few Clisiocampa larve new to me. He said they were found 
feeding upon a species of Crataegus and were sent with leaves of apple, 
upon which I reared them. On my visit to Washington these larvz 
were met with at Tacoma, on June 8, within webs upon Alder (Alnus 
rubra), and again at Easton, during July, upon Willow. Near Tacoma 
IT also found what I took to be the larvee of C. thoracica very abundant 
upon Crategus, Alder, Hazel, and various other shrubs. Two of the 
larvie were taken to Easton, and one pupated and to my surprise pro- 
duced not the expected C. thoracica, but C. erosa Stretch. 
About 10 miles along the railroad in southern Oregon, about the be- 
ginning of June, larve and webs of one of these moths were seen in 
large quantities on dry hillsides upon Purshia tridentata DC., Ceanothus 
sp.,and also Wild Cherry. While crossing the Columbia River on 
steamer, June 8, at which time the water was very high, large numbers 
of these larve were observed floating upon the swift current and as 
