59 
bers, and it was a continual fight between us and the beetles as to 
which should have the lice. 
The larve of Seymnus, as well as certain Syrphid flies and Chrys- 
opide, also preyed upon this Aphis. 
In the discussions of this paper Mr. Ashmead said that the record 
of this new Aphis attacking the stone fruits was very interesting, in- 
asmuch as this group of plants already suffered from the attacks of 
half a dozen well-known species of plant-lice. He suggested that the 
Aphidide afforded a splendid field for investigation, and that there 
was pressing need for such work. He said that Mr. Pergande was 
authority on this group and had in his possession the types of both 
Riley and Bueckton. 
Mr. Bruner said that his former assistant, the late Mr. Williams, 
did extensive work upon the aphides, 
describing 35 species, but that his 
work had not yet been published. 
Mr. Gillette called attention to the 
great danger of the black peach 
Aphis being disseminated on nur- 
sery stock, and said that it had been 
thus communicated to Colorado from 
Missouri. 
Next in order was a talk upon 
‘Fighting insects with fungous 
diseases,” by L. Bruner, Lineoln, 
Nebr. 
Mr. Bruner said in part that the 
successful control of the chinch bug 
in some sections by means of a 
fungous disease had been a great Fig. 4.— Aphis n. sp: wingless form fourth 
calamity to working entomologists, — generation, fourth stage, much enlarged 
Heemice ohis success had created. “7° drewine furnished by Beote): 
a false belief that injurious insects in general could be controlled by 
fungous diseases. As examples of insects destroyed by fungi he 
mentioned the chinch bug, locusts, and house flies. He said that the 
disease among grasshoppers would act only when conditions were 
favorable; that a grasshopper might eat a diseased one and be immune 
if conditions were not just right. 
He had received from the Department of Agriculture what was 
supposed to be the South American locust disease, which proved to 
be only a Mucor. The material was distributed over Nebraska, and 
while some who received it reported good results, others ‘‘ cussed.” 
In his experiments he had found that none of the locust diseases were 
successful. 
