484 ENTOMOLOGICAL NEWS [ Dec., 712 
as he had found a hundred or more of the chrysalids in the 
bags formed by the caterpillars drawing together the leaves 
of their food plant. 
Mr. G. M. Greene mentioned finding three males and a num- 
ber of females of Megarhyssa greenei Vier. on dead oak trees 
at Overbrook Seminary, near Philadelphia. They varied 
much in size. 
Dr. Skinner exhibited specimens of Oncideres putator and 
said the species was probably rare in collections. If there is a 
single brood, this might be accounted for by their late appear- 
ance. The specimens were taken by Rehn and Hebard in Syca- 
more Canon, Baboquivari Mountains, Pima Co., Arizona, Oc- 
tober 6-9, 1910; Palo Alto Ranch, Altar Valley, Pima Co., 
Arizona, October 6-10, 1910; Tucson, Arizona, October 3-4, 
t910, and Snyder’s Hill, Pima Co., Arizona, October 11, 1910. 
Mr. C. J. Cole reported having seen Pelecinus polyturator in 
considerable numbers at Chicago, Illinois. Mr. Greene said 
they were often plentiful at Castle Rock, Pa. 
Dr. Calvert exhibited some Lampyrid larvae which were 
given to him by one of the investigators of the photometric 
laboratory of the United Gas Improvement Company, of 
Philadelphia. He also exhibited a female Odonate, Libellula 
exusta deplanata Rambur, collected by Mr. Philip Laurent 
at Woodbury, New Jersey, May 14, 1912, apparently the first 
record of this southern form in New Jersey. Also Enallagma 
traviatum, a female taken at Clementon, New Jersey, and E. 
aspersum, a female from Mt. Airy, Philadelphia, both by Mr. 
Laurent, both being rare in this part of their habitat. 
He also made an address on the Second International Ento- 
mological Congress, held at Oxford, England, from August 
5 to 10. The interest attached to the place, the old colleges, 
the University Museum and the excursions were mentioned. 
The changes in the entomological collection from the time of 
Westwood to the present day were described. The special 
character of the collections as illustrating mimicry, protective 
resemblance, and food and habits of insects rather than sys- 
tematics, was alluded to—HENRY SKINNER, Secretary. 
