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Psyche 4:226, 1883.

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THE. [October-December 1884.
PARASITES OF THE LARVA OF LACHNO-
STERNA FUSCA. In an item quoted in
PSYCHE, v. 4, p. 211, from Science record, Mr. Otto Lugger is reported as saying that "Tz'phia lays its eggs in the larva ofLacJno- sterna fusra," and the larva "when nearly mature eats the white grub." Further, that the eggs of R/;i/z'å´phoriis a secondary para- site, "become fastened to the TzyJia" These statements are not strictly accurate. The conjecture in my 6th Missouri report,3 p. 123- 126, that the Tifhia larva preys externally on that of Lachnosteriza, I have since veri- fied. and of courseit begins feedingas soon as hatched ; while it would be quite exceptional for Rhipipliortis to lay its eggs on Tifihiia. The probability, as stated in the report cited, is that the eggs are deposited on flowers fre- quented by TipJiia, to which the triungulin fastens and by which it is carried into the ground. It would be interesting to know
whether Mr. Lugger speaks from observation or conjecture.-C. V. RILEY, at meeting of Entomological society of Washington, 6 Nov. 1884.
FOOD-PLANTS OF PULVINARIA INNUMERA-
BILIS. On p. 338 of J. D. Putnam's "Bio- logical and other notes on coccidae" [Psyche. Rec., no. 19891, it is stated that Mr. Putnam has observed Pulvinaria innumerabilis in great abundance on Acer dasyca@unz, A.
.sacc/iari?zu?iz, Neynndo aceroides and Tilia eurojhea, on each of which it thrives well, best on the Negundo, but least on A. sacchn- rinum. Mr. Putnam knew personally of the occurrence of this species also on Robinid jseudacacia, Vitis Labmsca and Rhus glahra, in the vicinity of infested maples. In one instance he found a single undersized speci- men, with its "nest," on Vitis rz'pda, more than 800 metres from the nearest infested Acer. He adds Rosa and Fagus to the list of food-plants, on the authority of S. S. Rathvon, who found it once on each of these 1 PSYCHE, Rec., no. 39.
plants, and mentions with doubtful credence the opinions of Emily A. Smith and C. V. Riley that they had also found it on Salix, Maclura, ~uercus, Ulmus, Platanus, Ribes, Euonymus and CeZtis. It undoubtedly occurs in very great abundance on Maclzira hedges in Washington, D. C., as I have observed. On the 30th of June this year (1884) I
received from F. R. Rathbun, of Auburn, N. Y., three twigs of Ulmus, gathered on the 28th, in Auburn, bearing respectively I, I and 3 specimens of mature Pulvinaria innz~mera- bilis, with fully developed nests, from which the larvae have since hatched in great num- bers. These all came from one tree. In
sending specimens previously, Mr. Rathbun wrote that "the maples [Acer] especially have the silky pussys or cocoons to a large extent, and they are invariably found on the under sides of the twigs. Sometimes they are arranger thickly, in rows, and again singly." Mr. Putnam says "there is enough evidence to show that this insect is capable of thriving on quite a variety of food-plants. and in the cases where it has been directly in- troduced from the maple there is no question of its identity." The specimens referred to in this communication will be deposi- ted in the Museum of comparative zoology at Cambridge, Mass., where they are more certain of good care and of being accessible to students than in any other collection of national extent in the country.-B: PICK- MAN MANN at meeting of Cambridge ento-
mological club, 10 Oct. 1884.
PROCEEDINGS OF SOCIETIES.
CAMBRIDGE ENTOMOLOGICAL CLUB.
(Continued from). i8b.)
14 MAR. 1884.-The 100th meeting of the
club was held at 61 Sacramento St., Cam- bridge, 14 Mar. 1884, the president. Mr. S: H. Scudder. in the chair.
The secretary announced the withdrawal
from theclub of Mr. Henry Savage, of Boston, Mass.




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October-December, 1884.1
Mr. S : H. Scudder showed fossil specimens and figures of Anthracomartus, to illustrate the remarks which he had made at the last meeting.
Dr. G: Dimmock showed samples of the
different grades of Central American cochin- eal, carmin of commerce, carminic acid and some of its salts.
Mr. S : H. Scudder exhibited some litho- graphic work and wood-cuts for comparison of methods of depicting fossil insects.
Mr. S : H. Scudder reviewed Part I of A. E. Baton's "A revisional monograph of re- cent epkemendae" (Trans. Linn. soc. Lond., ZCO~., S. 2, V. 3, p. 1-77, pi. 1-24).
11 APRIL 1884.-The
101st meeting was
held at 61 Sacramento St., Cambridge, 11 April 1884.
In the absence of the pFesident.
Mr. T. W: Harris was chosen chairman.
Mr. H. Hinkley showed several insects,
among them a larva, probably that of Eucro- nia maia.
Dr. G: Dimmock showed specimens of
several curious insects. Among them was
a Cdex with a parasitic nematod (? Gor-
dins) dissected from its abdomen.
The spec-
imen was taken near Leipzig, Germany.
The parasite was very large, relatively to the size of the Culex. No parasitic worms had been previously recorded from Culex, except m r i a sang'aiizi.+hominis. altho Mermis had been found in Simulium re'ptans, in Tan.y$zds nebuloszcs and in a species of Chironoiizm, and Gordnts had been taken from Chiro?iomus
å´plumosiis
9 MAY 1884. - The loand meeting was
held at 19 Brattle St., Cambridge. 9 May 1884, the president. Mr. S : H. Scudder. in the chair.
The secretary announced that Dr. C:
E.
Webster had removed his residence to Chica- go, Ill., and had sent notice of withdrawal from membership in the club,
to take effect
at end of 1884. The secretary read a state- merit, from the treasurer. of the financial condition of the club on I May 1884.
Mr. S: H. Scudder made home remark5
concerning the late Dr. J : L. LeConte, who was an associate member of the club.
Dr. G ; Dimmock mentioned certain habits of Corixa and Notonecta, a fuller account of which will be published later.
13 JUNE 1884.-The 1031-d meeting of the
club was held at 19 Brattle St., Cambridge, 13 June 1884, the president, Mr. S. 14 : Scudder in the chair.
The secretary announced the death of Mr. Francis Gregory Sanborn, an associate
member of the club, who died 4 June 1884, at Providence, R. I. Mr. Sanborn was born 18 Jan. 1838, at Andover, Mass.
Mr. S : H. Scudder showed a portrait of the late Dr. J : L. LeConte.
Mr. S : H. Scudder gave the results of his studies upon the " Arachnidae of paleozoic formations." Numerous figures and speci- mens of fossils were shown. [See Proc.
Anier. acad. arts and sci., 1834, v. 20, p. 13- 22.1
Dr. G : Dirnmock explained an apparatus
by whicli he was enabled to rear insects in gases of different kinds or in determinate pro- portions of gases and air.
Dr. G : Dimmock described the way in
which the red mites that were so abundant about Cambridge this year produced the fine, light colored lines upon leaves of clover, grass and other plants. Leaves which had been marked by these mites were shown.
Mr. R. Hayward stated that an Ontho-
phagzts whicli he had for some time supposed to be a new American species proved to be 0. Jufeicornis from Europe.
10 OCT. 1884.-The 104th meeting was held at 61 Sacramento St., Cambridge, 10 Oct. 1884.
The meeting was called to -order at
8 p. In.
In the absence of the president, Mr.
R. Hayward was chosen chairman.
The secretary announced the withdrawal
from the club of Mr. F. C. Bowditch. of
Brookline, Mass.
Dr. H. A. Hagen made some inquiries in
regard to the condition and accessibility of the library of the Club, and offered some



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226 MCHJ!?. [October-December i8&
suggestions in regard to its management. After considerable discussion it was decided to refer the matter to the Executive com- mittee.
Mr. B : P. Mann presented (through the sec- retary) a communication upon "Food-plants of Palviimria innztmerabilis." [Printed in P.~c~c, OC~.-&C. 1884, V. 4, p. 324.1
Dr. G : Dimmock showed a large larva of
some species of oesin3ete (? Culerelira emas- cdafar'), which had been sent to him by Mr. Leroy H. Sykes, of Suffield, Conn. This
larva was taken by Mr. Sykes, about 20 Sept. 1884, from beneath the skin of a chip-squirrel (Tiimim 8triafs.s) just at the right of the median ventral line near the umbilicus. Mr. Sykes thinks the squirrel was a castrated male.
Dr. H. A. Hagen commented upon and
read some notes from a manuscript journal of Christoph Ziinmermann, chiefly concern- ing the coleopterist Dr. F. E. Melslieinnerand his relatives. Ziminermann, who came to
Philadelphia in 1832, later visited Melsheimer at his home in Hanover, Pa., and describes his visit. [See Canadian entomologist. Oct. iB4, v. 16, p. 191-1~7.1
14 Nov. 1884.-The 105th meeting was held at 19 Brattle .St., Cambridge, 14 Nov. 1884, the president, Mr. S: H. Scudder in the
chair.
The secretary gave notice of the withdraw- a from the club of Prof. E. L. Mark, of
Cambridge, Mass.
Dr. H. A. Hagen alluded to some inter-
esting points in the histology of the rectal muscles of a lepidopterous larva, recently brought to light by Rev. F. T. Hazlewood, of Lynn, Mae~.
Mr. S: H. Scudder exhibited a piece of
leather-like fabric produced by the larvae of some species of Mexican lepidoptera; and also showed seed-capsules of a species of Pelargonium, which were perforated by some insect in escaping from them.
Mr. S: H. Scudder exhibited a specimen
of a carboniferous arachnid (Geydi'mra car- bon~~/~) recently discovered at Mazon Creek Illinois, which was of interest because it was the firs? recorded instance of a fossil of the order to which it belongs,-the jedi-payi. It was described in June last in the Proceed- ings of the American academy of arts and sciences. Curiously enough, only nine days later, another specieis of the same genus, froin Rakowitz, Bohemia, was described by Kusta under the name Thelvfihowvs hohĖ¤mic~s in a paper in the Transactions of the Bohemian academy, which has just reached this coun- try. This adds d l 1 another to the already frequent instances of the occurrence of the same generic type of arthropods in the car- bonifeiwus deposits of Europe and America. Dr. H. A. Hagen made some remarks in
regard to swarming of Atfofos divinaio~iu~ in houses.
12 DEC. 1884.-The 16th meeting was held
at 19 Brattle St., Cambridge, 12 Dec. 1884, the president, Mr. S: H, Scudder in the
chair.
Mr. S: H. Scudder made some remarks
upon a fossil beetle from Ontario, Canada, and upon a fossil scorpion from the gilurian. This scorpion had been mentioned by Lins- trorn in a letter to a friend in this country, and an extended notice of it will be prepared in conjunction with Thorell. This discovery is important, as it places the origin of the arirhoiA#lack in the silurian, and because of its showing further peculiar characters which may ally it to the tftero.s/omafa. Dr. G : Dimmock showed pieces of the ex- cremen t of the larva of SpXnx drvfiife~urĖ¤ni which are often of excessive length in pro- portion to their diameter, in comparison with the excrement of other sfhinyYae.
This prolongation of the excrement of the larva of this species is coordinate with a prolongation of the part of the larva behind the "caudal horn." Dr. Dimmock also ex-
hibited excrement of an undetermined larva which feeds on Finns sirobus; the excrement consisted of pieces, each made up of three spheroids arranged in a straight line.
Mr. S: H. Scudder reviewed a paper on
fossiI insects, mtistl y cockroaches, published b Moritz Kliver, i'n Palaroniog^ruyUica for I&, under the title "Ueber einige new
blattinarien-, zwei dictyonetim- und zwei arthropleura-arten aus der Saarbrucker stein- kohle nformation."




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