6 
grasshoppers than usual, and in Professor Bruner’s absence in South 
America his assistant and former companion on some of these trips, 
Mr. W. D. Hunter, also of the University of Nebraska, was commis- 
sioned to undertake the work. Mr. Hunter’s report is published in 
full, and it is gratifying to note that although the true Western migra- 
tory grasshopper was, owing to conditions which he has pointed out, 
more aburdant than for several years past, the character of the season 
of 1897 was such as to suggest the probability that the numbers of 
this insect will be much less during the summer of 1898. The articles 
by Mr. Coquillett present synopses of the species of the insects known 
as black-flies, or buffalo-gnats, and on the habits of the injurious fiies of 
the families Oscinide and Agromyzide, and will have an interest by 
no means limited to the systematist. The accurate knowledge gained 
from the view of the habits of the last-named families wili be of espe- 
cial value to the economic worker particularly interested in the insect 
elemies of grains and grasses. : 
OF 
