Ixvili ‘ Trans. Acad. Sci. of St. Louis. 
of the potato beetle, Doryphora 10-lineata, which is being pierced by 
an aphid. 
The Section held its field meet at Fenton, Mo., July 17-18, which 
was attended by five members and two guests. 
At the September meeting Mr. Philip Rau read a paper entitled 
“Duration of Life of Samia cecropia.” It was agreed that the paper 
be presented to the Academy for publication which, we are pleased 
to note, has since been accepted by the Council and is now in the 
hands of the printer. At this meeting several members reported 
having collected and prepared a lot of material for the museum col- 
lection to be placed there upon receipt of cases from the Academy. 
At the October meeting Prof. J. F. Abbott told of his experiences 
in Manchuria during the past summer and Mr. Hermann Schwarz 
reported on a recent collecting trip made through St. Louis and St. 
Charles Counties, Missouri, illustrating same with a number of stere- 
opticon views made from photographs taken by himself. 
At the November meeting Dr. Geo. W. Bock read a paper on 
“Spiders,” supplemented by a number of excellent drawings showing 
the anatomical structure of these arthropods. Mr. Ernest Schwarz 
showed catocalae eggs deposited in bark and explained that the eggs 
of this genus of moths are not always laid on the food plant of the 
larvae. The subject of relation of insects to their food received con- 
siderable attention. 
At the December meeting Mr. J. T. Monell read a very instructive 
paper on the “Homoptera,” showing in connection a series of micros- 
copic mounts of aphids. A letter from Dr. Wm. Barnes of Decatur, 
Ill., was read, in which he invited the entomologists of St. Louis to 
meet with those of Chicago at Decatur, Jan. 16th, and it was agreed 
that as many as can, join in making this meeting productive of good 
results. 
The average attendance for the last six meetings was 6 members 
and 3 visitors. 
The Section at present consists of ten members. 
Respectfully submitted, 
(Signed) HERMANN SCHWARZ, 
Secretary of the Section. 
Issued, July 5, 1910. 
