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REPORT ON ZOOLOGY, MDCCCXLll : 
Paussid^. — A newly discovered East Indian Paussus has been laid 
before the Linnaean Society by Westwood, under the name of P. hear- 
eyanus (Ann. Nat. Hist. x. p. 409). It belongs to the second division 
of the genus, approaching Platyrhopalus, in having the penultimate 
joint of its labial-palpi about two-thirds the length of the terminal joint, 
and is only distinguished from Paussus cognatus by the antennas. 
Germar’s Thorictus belongs to a family still undefined, of which he 
has figured a small Sicilian species as Th. grandicollis, (Faun. Ins. 
Eur. xxii. 4.) 
CucujiPEs. — Letzner (Arbeit, d. Schles. Gesellsch. f. Vaterl. Kultur, 
i. j. 1842) opposes the assertion of Gyllenhal, in regard to the sexes 
of the Cucujus depressus, as his observations on living beetles have 
convinced him, that the heteromerous individuals are not, as supposed 
by Gyllenhal, the males but the females. It appears, however, from the 
account, that he is deceived by the ovipositor of the females. The 
larva of this rare beetle has also been observed by him. It appears 
to agree very nearly with the larva of Brontes, described by the reporter ; 
it lives, for a year at the most, under the barh of old fir posts. 
The new genus, Platisus, of the reporter (Arch. 1842, i. p. 216) has 
the closest agreement with Cucujus, and principally differs in the first 
tarsal joint being as large as the following one : PI. fuscus is from Van 
Diemen’s Land. 
Phlceostichus, Redtenbacher (Qu86d. Col. Austr.) ; has the antennae 
with three larger terminal joints ; the prothorax with teeth on the sides ; 
the tarsi are described by the author as heteromerous. On a specimen 
which I had an opportunity of examining, I found five joints on all the 
tarsi, but the first was certainly very short. There is here, perhaps, also 
a similar distinction of sex as in Cucujus. Phi. denticollis is like a 
Salpingus, dull black, finely downy, with two sinuated dark yellow 
bands on the elytra ; it is found under the bark of the maple tree. 
Stemmoderus, Dej., has been published by Spinola (Guer. Mag. de 
Zool. 1842, Ins. pi. 91). This beetle stands in near relationship to 
to Rhysodes ; the antennae are rather short; the joints cylindrical and 
closely connected ; the head convex beneath ; the eyes large and 
kidney-shaped; the labrum horny; mandibles flat, toothless, with a 
simple point; the mentum not quite concealing the opening of the 
mouth ; the maxillary palpi rather long, with an oblong-oval terminal 
joint truncated at the point ; legs elongated ; tibiae simple ; tarsi evi- 
dently five-jointed. St. singularis, Dej., from Senegal, is castaneous ; 
4'" long ; the forehead has three protuberances, flat in the middle, 
swollen out on each side into two great bladder like pads; the pro- 
thorax is covered posteriorly by two knobs like balls, but flat on the 
back; the elytra furrowed, with anterior angles strongly projecting 
forwards. 
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