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abundant in the adult form in the latter part of May, and there is good 
reason to believe that the larvie have the same destructive habit in 
grass, and, from the occurrence of the imago so early in the season, it 
would seem probable that as in exsiccatus there are two broods each 
season. 
Another moth nearly related to these web-worms occurred this sea- 
son in great numbers in pastures and meadows, and though I have not 
had opportunity to study the larval stage, it may be well to call attention 
to it as a probable grass pest that may prove as troublesome as the spe- 
cies of Crantbus. This is the Nomophila noctuella, and it was noticed in 
greatest abundance from May 18 to 22 (1889). The species has been 
observed as abundant in previous seasons and is probably a pretty con- 
stant inhabitant of grass land. 
During the latter part of May and first part of June the Blue Grass 
in the vicinity suffered from the trouble called “ Silver Top,” the head 
and upper joint of the stalk turning whitish. JI examined a number of 
these withered and partly wilted stalks and in a few cases found Thrips 
present, and in some cases swollen joints appearing as if affected with 
Meromyza, the adults of which were very plentiful on grass a little 
earlier. If due to Thrips, I think they must leave the grass almost as 
soon as it begins to wither, as in the cases where I found them I selected 
stems that were just beginning to turn white. 
The Clover-seed Midge has appeared in this State, and the present 
year is the first I think that it has been destructive. It has been re- 
ported in a few localities and I swept the adults from clover in consider- 
able numbers May 25. A very few were bred from clover heads in 1888. 
Epitriz cucumeris was very abundant on potatoes, but as the vines 
had a very vigorous growth in the early part of the season no serious 
damage resulted. 
Diabrotica vittata and D. 12-punctata were exceedingly plentiful and 
furnished me material for some tests of X. O. Dust hitherto reported. 
J also tried for these a mixture of London purple and kerosene emulsion 
for the purpose of killing the beetles gathered on the squash vines and 
preventing the complete destruction of foliage, depending upon the 
London purple to kill the beetles gathering on the vines later. After 
this application the vines did very well and I think the plan a success. 
The beetles will, some of them, fly away before the kerosene takes effect, 
but they probably all die in a short time. I have since noticed that 
Prof. John B. Smith has used a similar plan for treating the Elm-leaf 
Beetle, and it would seem to be applicable in many cases where the - 
expense is not an obstacle and where it is desired to kill the bulk of the 
insects gathered on plants before they have time to destroy foliage, 
which they must do to some extent when treated with London purple. 
Plant lice of many species were abundant in the latter part of the 
season. Of these the Thorn-tree Aphid (Schizoneura crategt Oest.) was 
especially conspicuous by its abundance on thorn trees. The common 
