375 
the remainder of the eggs hatched, and at this time (May 12) the winged 
pseudogynes are giving birth to young on the apple leaves, and also on 
the roots of some grasses, e. g., Timothy (Phleum pratense). 
Empoasca mali is present in considerable numbers on apple trees and 
other plants. Adults were first observed in the orchard of the Univer- 
sity of Illinois, May 7. Now larvae, nymphae, and adults are very 
common. 
Teras minuta is at present the most destructive insect affecting young 
apple trees here. The larvae are almost, or in many cases quite, full 
grown. Nurserymen are both spraying and picking by hand. 
The moth of the Apple-leaf Skeletonizer (Pempelia hammondi) has just 
emerged (May 12) in my breeding cages. This rivals the foregoing 
species in the amount of damage to apple trees in this State. 
The Apple Ornix {Ornix geminatella) is sufficiently abundant to make 
its presence quite objectionable in orchards. The adult moth was first 
captured March 31. 
Eggs of a mealy bug (Dactylopius) have been found during the past 
winter and spring in great abundance in the culms of Timothy and 
straws of the small grains. The young mealy bugs commenced to hatch 
May 4. [H. A. Surface, Champaign, III] 
ANOTHER TRIAL WITH ENGLISH HESSIAN-FLY PARASITES. 
During the month of May Mr. Fred. Enock, of London, England, 
sent to this office a box of puparia of the Hessian Fly infested by Entedon 
epigonus (Semiotellus nigripes Lind.). The x>arasites were already issu- 
ing from the puparia, and they were therefore sent to the most conveni- 
ent of the suitable places, namely, Fredericktown, Md., and were 
liberated in a wheat field on the farm of Mr. G. Morgan Eldredge, of 
Philadelphia. 
provancher's ichneumonid^e. 
Prof. G. C. Davis, of the Michigan Agricultural College, has just 
published in the Proceedings of the Academy of Natural Sciences of 
Philadelphia, pages 184-190 of the volume for 1894, a paper entitled 
u Some Notes from a Study of the Provancher Collection of Ichneu- 
monidae." The species which Mr. Davis found in the collection (which 
as a whole is located in three rooms of the Parliament Building at 
Quebec, having been purchased by the Province) were carefully studied 
by him, and his comments are published in the shape of a synonymical 
list. Many of the types were not seen, but there is sufficient informa- 
tion in the paper to well justify its publication. Provancher worked 
so entirely alone that many of his numerous species will be found to be 
syuonyms, and it is very gratifying to know that the collection has 
been placed in so accessible a location as Quebec, and in the hands of 
so careful a curator as Mr. Saussure. The collection was offered to 
the National Museum at Washington, but funds were lacking for its 
purchase. 
2953— No. 5 3 
