PRIONUS (ORTHOSOMA) PENSYLVANICUS. Obscurus, thorace marginato
tridentato, pectore abdomineque ferrugineis, antennis brevibus. (Long.
Corp. 1 unc. 6 lin.)
SYN. Cerambyx Pensylvanicus, _De Geer Mem._ 5. _p._ 99. _t._ 13. _f._ 13.
Cerambyx unicolor, _Drury. App. vol._ 2.
Cerambyx brunneus, _Forster Cent. Ins. p._ 37. _Linn. Syst. N._ (_Gmel._)
1. iv. 1828.
Cerambyx cylindroides, _Linn. Syst. Nat._ (_Ed. Gmel._) 1. iv. 1818.
Prionus cylindricus, _Fabr. Sp. Ins._ 1. _p._ 207. 14. _Syst. Eleuth._
II. _p._ 261. _Oliv. Ent._ iv. 66. _p._ 23. _t._ 1. _f._ 6. _Latr. Gen.
Cr._ III. _p._ 33. _Serv. Ann. Soc. Ent. France_, 1. 156. (Orthosoma c.)
HABITAT: New York.
Head dark chesnut-coloured. Antennæ about two-thirds of the length of the
insect. Thorax somewhat darker, rounded, and margined; having three small
spines on each side. Scutellum semi-oval. Elytra light chesnut, margined,
and flattish; being about three times the length of the thorax and head,
and broad at their extremities. Abdomen, thighs, and tibiæ red chesnut,
shining as if polished.