Article beginning on page 33.
Psyche 6:33-34, 1891.

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[February 1891.
the egg, though he points out several accom- panying features in the adult. They are as follows :-
Egg large, tubercular, indentations obscurely hexagonal
. . . . . . . . . . Afknaeus group.
Egg similar, not tubercular. .Loxura group. Egg small, tubercular, indentations sharply cut, usually trigonal
. . . . Thecia grout.
Egg small, spiny, indentations sharply cut tetragonal
. . . . . . . . . . . Arhoaala group.
PROCEEDINGS OF SOCIETIES.
CAMBRIDGE ENTOMOLOGICAL CLUB.
10 February, 1888.-The 135th meeting
was held at 61 Sacramento St. Mr. S. Hen- shaw was chosen to preside, and Mr. G.
Dimmock chosen secretary pro tern.
Mr. Roland Thaxter of Cambridge, Mass.,
was elected to active membership.
Mr. J. H. Emerton read his address as re- tiring president, having been unable to be present at the January meeting. The ad-
dress was entitled " The study of species and the study of cells" (see Psyche, v. 5, p. 77-78).
Mr. C. W. Woodworth exhibited his col-
lection of North American Cicadidae, which contains all the described species. Numer- ous notes were given upon the distribution and other peculiarities of each species. Mr. J. H. Emerton showed mites taken
from a lizard and made some remarks upon their peculiarities.
Mr. Emerton also showed drawings of the
cribellum and calamistrum of various species of Ciniflonidae. These organs are used by these spiders for curling their web to make it sticky. He also showed drawings of the feet of certain species of spiders.
Mr. S. Henshaw showed a fine specimen
of a vegetable parasite (Sphaeria) from a New Zealand species of Cossus 01- Hepialus. Dr. H. A. Hagen spoke of the early stages of the Odonata and especially of a pupa
skin of a large Libellula from China that he had lately examined. In this species the palpi did not meet, but each had five or six teeth comparable to a comb. Otherwise the insect belongs near Macromia, and this pe- culiarity of an earlier stage furnished the text for a discussion of how far position in classification should be governed by the earlier stages of animals and how far by adult characters only. The discussion was partici- pated in by several members.
g March, 1888.-The 136th meeting of the
Club was held at 61 Sacramento St. Mr.
J. H. Emerton was chosen chairman.
Mr. S. H. Scudder invited the Club to hold its meetings hereafter at his laboratory, and offered shelf room for its library; both offers were accepted with thanks.
Mr. J. H. Emerton spoke of Mr. McCook's
observations on the habits of Mygale hentzii while kept in confinement (see Psyche, v. 5 7 P- 55)-
Dr. 13. A. Hagen said that a specimen of Ixodes in his possession, taken from the ear of a man in July, 1887, was still living, though it had been without food for a pe- riod of nearly eight months.
Mr. S. H. Scudder showed a series of
maps giving the distribution of New Eng- land butterflies, and called attention to some curious points in the range of several species.
Mr. C. W. Woodworth described retractile processes on the abdominal segments of the larva of Craesus latitarsus. and suggested that they were probably defensive in func- tion. Discussion on similar organs fol-
lowed.
Dr. H. A. Hagen spoke of the larva of
Glypttis sulcatus found in the nests of white ants in south Africa.
13 April, 1888.-The 137th meeting of the Club was held at 156 Brattle St.
Mr. S. H.
Scudder was chosen chairman.
Ps\&e 6 03J-M (pre.1903). hfp //psyche aitclub org/#6-0333 htd



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[February 1891.
Mr. C. W. Woodworth recorded the cap-
ture in the south-western states of Atracto- ceyus bradiemis. The venation is peculiar, bearing a closer resemblance to that of the Meloidae than to that of the clavicorns. The species is distributed from Brazil to Mexico, and this specimen, if taken in the United States, is probably from Texas.
Mr. S. Henshaw thought the label rather
suspicious. He stated that Gorharn says in the Biologia Centrali-Americana that the large size of the eyes and readiness with which this insect flies to the light indicate parasitism.
Mr. Woodworth stated that on pres-
sure being applied to Cum9onotus å´pensylvan icus a drop of what was apparently water was exuded from the alimentary tract.
Mr. S. H. Scudder read a paper on the
distribution of Anosia å´plexi'p'pus
Dr. H. A. Hagen stated that a species named by him as Libellula vacua was identical with Corddia linttzeri, and has occurred in Mani- toba and the northwest and at Centre, N. Y. He also said that Aeschna gradis which has been taken at Hoboken also occurs in Onta- rio.
Mr. S. H. Scudder remarked on the analo- gy which the distribution of Cordulia lane- YZ bore to that of Rusticus scuddeyii, which occurs in Labrador, Manitoba, the Saschat- chawan up to Great Slave Lake, and also at Centre, N. Y.
I I May, 1888.-The Club met at 156 Brattle St. Mr Samuel Henshaw was chosen chair-
man and Mr. S. H. Scudder, secretary.
Dr. H. A. Hagen exhibited illustrations
and specimens of the early stages of the species of Blepharocera which Fritz Muller has found living in rapid currents in southern Brazil, remarkable for
the suckers attached
to each segment of the abdomen, by which it is enabled to withstand the rapidity of the stream. Dr. Hagen also gave an account of our knowledge of the history of the several species and in the same connection exhibited the larvae of Blepharocera found by Mr. H G. Hubbard in the streams of Michigan.
Dr. Hagen also announced the discovery
of the larva of an unknown species of Sisyra in northern Illinois, and offered some re- marks on the peculiar structure of this larva. Mr. C. W. Woodworth mentioned finding
a very interesting larva of Stratiom~s which used its palpi as locomotory organs.
Mr. S. H. Scudder called the attention of the Club to the completion of the Rev. Mr. Eaton's n~onographs of the Ephemeridae,
the last part of which had been received within a few days. A discussion ensued, in which accounts were given of the immense numbers of single species of Ephemeridae sometimes seen.
Mr. Scudder also exhibited a Hemerobius
taken in the house since the last meeting, in which, contrary to what is customary in the Hemerobidae, a cross vein united the subcosta and radius near the tip, though the neuration of the two wings of the spe-
cimen did not agree.
He also read from his forthcoming work
on New England butterflies a chapter on the life-history of Anosia plexipfis, with special reference to the annual recolonization of New England from the south.
Mr. Woodworth gave an account of species of the group Typhlocybidae ; five genera are known in the whole world, all of them found in North America, where we have about
thirty species.
Mr. Holmes Hinkley stated that he had ob- tained an immense number of cut worms
from a greenhouse adjoining his residence, where they were now appearing upon the
surface every night, attacking the pansies and geraniums, and were supplied to him in large numbers by the proprietor.
The librarian announced that the Club's
library was now stored and arranged on
shelves in a room adjoining that in which the meeting was held, where they will be kept for the present, and be accessible to- the members on every Tuesday evening as
well as at the Club meetings.




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