STATE AGRICULTURAL SOCIETY. 
681 
VAPORER MOTH. REMEDIES. 
our readiest mode for lessening their numbers will be to pick off each leaf 
qn which one of them is standing and trample it under the foot, if one can 
find it in his heart to thus treat such beautiful objects as they are. Their 
numbers around our dwellings may also be lessened by searching for their 
cocoons under the edges of clapboards, in the grooves of the rough bark of 
trees, and similar situations, and wherever one of them is found with a 
cluster of eggs upon its surface, tearing it from its place and throwing it 
into the fire. 
In conclusion, I may add that the Common Vaporer Moth has been very 
abundant in the city of Albany for several years past, where its larva has 
acquired the name of the Little Yellow Caterpillar. It here appears to be 
increasing with each succeeding year, and has this season (1863) been so 
numerous that in some of the yards and gardens I have seen large plum 
trees wholly stripped of their leaves by it and the rose bushes similarly 
defoliated. On this the 21st of July the caterpillars have nearly all disap¬ 
peared for the season, and I have to-day met with the insect in all its dif¬ 
ferent stages—some of the caterpillars still remaining out upon the rose 
bushes, whilst most of them have formed their cocoons and changed to 
pup.E, some of which have already given out the perfect insects, and the 
winged males, recognized by their smoky gray color and the white dot on 
the inner hind corner of their wings, are seen at rest on the shaded side 
of buildings, and occasionally a cocoon shows on its surface the milk-white 
patch of dry frothy matter under which the female has hid her eggs. As 
these eggs will remain unhatched until next spring, this nuisance, the 
Yellow Caterpillar, might be greatly abated, were every person after the 
leaves have fallen, in autumn or iu winter, to search for these cocoons 
under every projection in the walls of his buildings and in his fences, and 
upon every dead leaf which remains hanging upon the limbs of the trees 
and shrubbery, and wherever one of the cocoons is found having this white 
foam-like substance upon it, making it a point to tear it from its place and 
burn it. 
8. Hair-necked Rose-bug, Macrodactylus barbatus , new species. (Coleoptera. Me- 
lolonthidaj.) 
Associated with the Rose-bug, devouring the leaves and fruit of roses, grape vines, apple and 
other trees, the latter part of June, a beetle like it in every respect, excopt that its thorax is 
S ightly more broad than long, and is bearded with small erect short bristles. 
As this report is being closed for the press (June, 1863,) specimens ol 
the Hose-bug are sent me from Stillwater, Saratoga County, as an insect 
which is there making its appearance in vast numbers in the fields of young 
rye, corn and potatoes; and a gentleman from Saratoga Springs calling 
upon me, states that in some of the gardens there the grape vines are so 
thronged with these beetles, eating the fruit and leaves, as to threaten 
to ruin them, whilst there are great complaints of it also as devouring the 
young plants of Indian corn in the fields. 
In my Second Report was given a description and figure of the Rose- 
