[November 1884. BULLETIN BROOKLYN ENTOM. SOC. VOL, VII. 93 
Mr. Hulst noted the appearance in large numbers of a downy insect 
on maple. Mr. Lintner said it was Coccus (Pulvinaria) innumerabilis. Prof. 
Osborn had noticed the same insect, and gave its life history: no less 
than seven species of insects are known to prey onit. Mr. Saunders has 
noticed it, and the larva of Chzlocorus bivulnerus had also been so common 
as to attract attention and cause alarm. Mr. Underwood reports that 
the species is said occasionally to attack the elm. 
Dr. Horn gave an account of secondary sexual characters of cole- 
optera comparative with Mr. Smith’s account of Lepidoptera. In Collops 
the antennal modification is very like that of Rezza, and the use of it has 
been observed: the Q antenna is grasped in the bend of that of the <j; 
the articulated appendage is thrown forward, and the antenna beyond 
the bent joint is thrown backward, so that during copulation the Q is 
firmly held. In AZeoe is a structure very similar to that of Herminza and 
answering a similar purpose. The palpi in Sphalera (Tomoxia) some- 
times have an articulated appendage near tip, probably also serving as a 
grasping organ. These organs are explainable. Other modifications 
are obscure. edza for instance has a notch at the inner side of the mid- 
dle tibia near tip: a species of Aphodius has a very curious hook to the 
first joint of hind tarsi: another has a peculiar clavate appendage to the 
inner side of fore tibia near tip. 
Mr. Cresson says, that except in the parasitic forms which he has 
not studied, the Hymenoptera show no such peculiarities. 
Mr. Osborn says that in J/al/lophagide, and especially in Lipeurus, 
a modification of the antenna similar to that of the Zomoxia palpi was 
found, and also undoubtedly served as a clasping organ. 
A committee of three was appointed to arrange a programme 
and obtain papers for the next meeting of the club, which then adjourn- 
ed. Committee; J. B. Smith, of Brooklyn, Chairman, and B. Pickman 
Mann, of Washington, and Herbert Osborn, of Ames, Iowa. 
Joun B. Smiru, Secretary. 
—______—_—)>- > 
ON PRESERVING LARVAE. 
BY A. W. PUTMAN CRAMER. 
Though a person may have collected and studied Lepidoptera for 
years and though he may be able to determine hundreds of imagines 
from memory, still he will in all probability be unable to give the names 
of more than a few dozen larve, and will find himself utterly at sea when 
