Article beginning on page 146.
Psyche 4:146, 1883.

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146 , PSYCHE. [March 1884.
3. Nemognatha immaculate/., with
2 pages of text, marked PI. I11 (pi. 7
in 1824).
4. Nutoxus monodo~z, the lower
fig., and iV.
bicoloq with 4 pages of
text, marked PI. IV (Anfhicus hicolor
and A. monodon, pi. 10, in 1824).
5.
Berytus sfinosus, with 3 pages
of text, maiked PI. V (pi. 14, in 1824). 6. Cicindela formusa, and C. de-
cemnotata, with 4 pages of text, marked
PI. VI, and followed by an index of the
8 species figured (pi. 18 in 1824).
The text in 1824 is througho~it differ-
ent from the text in 181 7, mostly short- ened, but scarcely different for the
descriptive part of the species. The
coloration of the plates is more careful than in 1824 and better than in Le-
Conte's edition.
The Memoirs of the Philadelphia
society for promoting agriculture, vol.
4, Philadelphia, 1818, So, contain two
letters of Thomas Say, which are not
mentioned in Douhleday's List of Thorn-
as Say's works, nor in LeConte's edition, nor quoted by Th. W. Harris. Dr.
Asa Fitch states that he has never seen
this rare book. The volumes were pre-
sented to the Library of Harvard college in 1849, after Harris had done' his work. He knew it, but as it contains nothing
of importance it is not quoted by Han is, though in one volume a letter to him is
found on the cover.
I.
A letter, Sept. 28, 1817, to Hen.
R. Peters, by Thomas Say, p. 234-226,
containing remarks 011 the Hessian fly,
on the locust and on corn grubs.
2.
A letter, p. 236-237, to the same,
by Thomas Say, containing remarks on
the Hessian fly, on Tina granella,
and on cut worms.
[The references to these two articles, which were written out several years since, are added in the Bibliographical record, nos. 3430 and 3431.-B. P. M.]
-
SOUND-PRODUCING ORGANS IN ANO-
MALA, ANTHOSO~~US, AND OTHER
COLEOPTERA.-T~~~~ is a stridulatins;
-
organ in Anomala, situated on the meta-
thorax and elytra, in the same position as described by me in Polyphylla (PSYCHE,
v. 2, p. 278). Its location is the same as that of the elytral organ described by
Dr. LeConte (Class. col. N. A.) in
Trox and Li'y~us, but Dr. LeConte
failed to notice that the metathorax in
those genera has on its ascending portion (beneath a ridge in Trox) a con-espon-
ding pearly space, just as it has in
Polyphylla; this is in addition to the
organ on the first ventral, corresponding to the third dorsal, segment, in Trox,
described by Dr. LeConte. My finding
these organs in melolonthini and rutel-
ini is merely accidental : why does not
some coleopterist study them microsco-
pically in all our genera of scarabaei-
dae? The same organs are present in
Limonius and other elateridae, and
there is, besides, a surface on the ascen- ding portion of the first ventral segment, as in 550% which, as in Trox, corres-
ponds to a second surface on the elytra. I find stridulatino; organs also in An-
thonomm, of the curcu7ionidae. situated
as in AnomaZa.
W. H. Patton.
Wfiferburv, Conn., 13 Nov. 1883.
rStridulating oryans of colenptern lire described in PSYCHE, Rec., no. 1405, 1444.1




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