ONITIS SULCATUS. Ater, capitis tuberculo unico, elytris striatis, thorace
anticè lineà irregulari dorsali impresso. (Long. Corp. 1 unc.)
SYN. Scarabæus Sulcatus, _Drury_, _App. vol._ 2.
Onitis Nicanor, _Fabr. Syst. Eleuth._ 1. _p._ 29. _Tabl. Col._ 2. _t._
15. _f._ 8.
HABITAT: Jamaica.
Head broad and thin, hairy underneath; terminating in a short straight
horn, inclining backwards, with a small tubercle on each side. Eyes
almost surrounded by the thin sides of the head, being placed so as to
see both above and below it. Thorax margined, with several protuberances
on its front; and on the top with a strong indented line running from the
front to the suture of the elytra, where likewise {72}its margin is
interrupted by two smaller impressions, forming an appearance like a
square escutcheon. Elytra as long as the thorax, margined, and deeply
furrowed, scarcely reaching to the anus. General colour above black or
raven grey, but not shining. Thighs very strong, black, and broad.
Anterior tibiæ strong, with three teeth and a spine. Tarsi and ungues
very small. Middle and hinder tibiæ small at the base, but broad and
thick with strong spines at the tips. Scutellum obsolete.