REPORT OF THE STATE ENTOMOLOGIST I9QI7 45 
Slug caterpillars. These peculiar, apparently legless caterpillars 
attracted an unusual amount of attention. This was especially 
true of the caterpillar of the hag moth, Phobetron pithe- 
cium Sm. and Abb., a brownish sluglike form about three-quarters 
of an inch long and with from a few to ten lont, plumelike processes 
extending from either side of the back. It occurs from July to 
September feeding on the foliage of a number of trees and invariably 
attracts notice because of its striking appearance. 
The saddleback caterpillar, Sibine stimulea Clem., was 
also relatively abundant. It is a rich brownish caterpillar about 
t inch long when full grown and so colored that it appears as though 
it wore a green saddle cloth and brownish saddle, the latter margined 
with white and edged with black, hence the common name. Both 
the anterior and posterior extremities are adorned with long, brown, 
spined tubercles. This caterpillar as well as the hag moth cater- 
pillar, is an urticating or stinging form and is capable, if handled 
incautiously, of inflicting a severe sting. Both have been recorded 
as feeding upon the foliage of a variety of trees and shrubs, oaks 
and cherry being preferred, though the saddle back is sometimes 
rather abundant upon corn. Neither are numerous enough, as a 
rule, to warrant the advising of remedial measures, such as spraying 
with a poison. 
Oriental peach moth (Laspeyresia molesta_ Busck). 
Wilting leaves and bored terminals of peach in late summer may 
be the work of this insect, a species also known to attack quince, 
apple and pear. The probabilities are that it breeds equally well 
in the various cultivated pome and stone fruits. It is especially 
fond of quince, thirty larvae having been found in one fruit, according 
to Doctor Quaintance. 
This serious pest appears to have become established in New 
York State. It was first brought to notice late in 1916 by Messrs 
Quaintance and Wood,' who characterized it then as an important 
insect enemy of the peach. Subsequent information kindly placed 
at our disposal by Professor Quaintance indicates the occurrence 
of the insect more or less generally over a radius of to or 12 miles 
from Washington and extending northeastward to Baltimore. There 
is another center in the vicinity of Rutherford, N. J., and it may 
also occur at New Brunswick in that state. He adds that the 
insect is probably generally present over most of Long Island and 
occurs more or less generally through the parks in New York City. 
1 Journal of Agricultural Research, 7:373-77, 1916. 
