792 
ANNUAL REPORT OF NEW YORK 
OAK. TRUNK. 
most extent of the geographical range of this species, and that the name 
given it by Ilerbst was therefore inapplicable. He consequently proposed 
the name, maxillosus for this species. The insect, however, occurs in all 
parts of the United States and Canada. 
2296. Gray-sided weevil, Pandclctcius hilaris , Hcrbst. (Colooptera. Curculionidso.) 
A smaller perforation than that of the preceding insect, containing a 
worm resembling that of the plum curculio, and which is the young of a 
weevil met with upon the leaves of the oak from May till th6 last of Sep¬ 
tember, 0.20 long and of a pale brown color, its wing-covers on each side 
usually gray bordered above with black, and sending two gray branches 
obliquely inwards towards the suture, with very stout fore legs and a short 
broad beak having a furrow along the middle of its upper side; with its 
beak boring a hole in the bark and placing an egg therein. Sec Harris' 
Treatise, page 61. 
297. Silky timber-beetle, Lymenjlonsericeum, Harris. (Coleoptcra. Lymoxylonidee.) 
Boring small long cylindrical burrows in the wood of the oak, probably, 
and other trees ; a slender odd-looking worm with six legs placed on its 
breast, a prominent hump upon its neck, and a leaf-like fleshy appendage 
at the end of its back; changing into a long narrow chestnut-brown beetle, 
0.50 long, bearded with short, shining, yellowish hairs, giving it a silky 
lustre, its eyes large and almost meeting together above and below, and its 
wing-covers tapering and shorter than the body. See Harris’ Treatise, 
p. 51. 
298. American timber-beetle, Hylvccctus A7ncricanus f Harris. (Coleoptcra. Lymcxy- 
lonidco.) 
A worm very similar to the preceding, but with a straight sharp-pointed 
horn at the end of its back in place of a leaf-like appendage; changing 
into a pale brownish-red beetle 0.40 long, its wing-covers, except at their 
base, and its breast black, its eyes small and a glassy dot on the middle of 
its forehead resembling a small eyelet. See Harris’ Treatise, p. 51. 
This and the preceding are very rare insects, and their larvae have never 
been detected, but are inferred by Ur. Harris to inhabit oaks and to have 
the singular forms above indicated, from the analogy of the perfect insects 
to two European species. Foreign writers, I see, are misled by Dr. Har¬ 
ris’s account, into supposing that it is authentically ascertained that our 
insects coincide in their larva state with the European species. 
299. Feedle OAK-BORER, Goes debilis, Leconte. (Colooptera. Cerarabycidm.) 
A cylindrical long-horned beetle, which has recently been described by 
Dr. Le Conte, under the above name, is so uniformly found upon white 
oak trees in July and August, that I doubt not its larva is a borer in tho 
trunks of these trees, perforating the wood, probably, in a manner similar 
to that of the marked pine borer. No. 230, and tho worm resembling that 
