18 
the scale. On June 18 of the present year an additional lot of speci- 
mens upon maple leaves was received from Prof. Hunter Nicholson, 
of Knoxville, Tenn., and with them numbers of the larve of the 
Hyperaspis feeding energetically upon the eggs of the scale insect. 
Drawings were made of this very peculiar and characteristic larva 
which are reproduced herewith. The striking likeness of the larve 
of the Hyperaspis to a mealy bug will at once be noticed. Were it 
feeding upon mealy bugs instead of upon Pulvinarias (and it fre- 
quently does feed upon mealy bugs) it would at once be evident that 
oie 
SEL LEY 
<a 
Fie. 1.—Hyperaspis signata: Larve feeding upon Pulyinaria on leaf of maple above, natural size; below, 
enlarged (original). 
we have here a clear case of what Professor Poulton calls *‘ aggressive 
mimicry.” 
Mr. Gillette expressed the wish that the Association might have 
more talks like Dr. Howard’s, and asked if there were any questions 
or suggestions. 
Mr. Howard said he would be glad to hear from Mr. Lounsbury on 
the subject of the parasite of the black scale. He said he wished to 
add that Mr. Lounsbury had sent two boxes—one a deep box and one 
a shallow box. The shallow box carried the more successfully. _ The 
scales had begun to rot in the deep box. 
Mr. Lounsbury replied that he was more in quest of information 
than anxious to give it, and would like to know if anything had been 
done about the secondary parasites. 
