REPORT OF THE STATE ENTOMOLOGIST 1901 (45 
ruin a number of fine trees in that locality and _ necessi- 
tate their removal. The work of this pest at Buffalo was 
brought to my notice by Mr M. F. Adams of that city, and 
through his kindness I have been able to secure good examples 
of the insects’ work in ash and to observe its operations 
in oaks. This species also occurs on Long Island. All the 
examples of its work seen by me show that the full grown cater- 
pillars prefer to run their burrows at some depth in the wood, 
and that as a rule they run so close to and communicate so 
freely with one another as to destroy the value of infested trees 
for timber. This insect also causes large unsightly wounds 
wherever its burrows come near the surface. Caterpillars 
about to pupate frequently take refuge in these channeled 
wounds, from which the pupae work themselves partly out 
before the disclosure of the imago. The eggs are probably 
deposited in any available crevice, where they adhere to the bark 
rather firmly. <A piece of root which had been bored by the wil- 
low curculio, Cryptorhynehus lapatthi- Linn., was 
lying in a breeding cage, and a female Prionoxystus 
embraced the opportunity to deposit six or seven eggs well 
within the burrow. | 
Apparently the females do not hesitate to oviposit before the 
appearance of males. Some eggs which were found in the office 
hatched, possibly without being fertilized, but it was impossible 
to prove the latter point. Dissection of a well distended female 
which probably had deposited no eggs, showed that she con- 
tained 269 well formed ova and 133 which were partly developed, 
making a total of 402. 
Leopard moth, Zeuzera pyrina Fabr. Late in January 
a communication was received from C. H. Stuart, Newark N. VF 
accompanied by an imported quince seedling infested with the 
larva of this notorious pest. It was stated in the letter that 
all of the stock with which this stock came. would be fumigated 
before it was set out. This pest, as is well known, has proved 
and is now a very serious enemy to shade trees in and about 
New York city; and it is only a question of time when it will 
become more widely distributed in the United States. It is one 
