There is no doubt that all these figures belong to one species; though differing, not only in size, but structure. Antennæ light red brown. Head thin, rounded, margined, and of a green golden colour; some (which are evidently males) being furnished with a smooth, round, black horn, almost as long as the thorax, and inclining backwards; others have only a small tubercle in the place of the horn; and others have a small horn, about one-fourth the length of the first mentioned, as in Fig. IV. Thorax {73}next the head golden green; behind and on the upper part is golden red, and margined, rough and shagreened. In the horned specimens this part terminates on each side the posterior margin in a projecting angle, which is more or less conspicuous, in proportion as the horn is long or short. Those which are quite hornless, as Fig. V., are entirely destitute of these angulated risings, having the thorax rounded, but in its front a small black protuberance or swelling is seen. Elytra golden green, inclining to a blue, and very much channelled, with small striæ placed between others of larger size, extending almost even with the anus. Abdomen black, the sides shining green. Anterior femora and tibiæ black and hairy; the latter very strong and dentated, having a long moveable spine fixed on the inner edge of each, extending somewhat beyond the tarsi, which are very short and small. Intermediate and posterior thighs shining golden green, broad and strong. Tibiæ black, with two spines (one very long) at the tips. Tarsi five-jointed, ungues single, and not divided as most insects have them. Scutellum obsolete. COPRIS MINUTUS. Plate XXXV. fig. 6. ORDER: Coleoptera. SECTION: Lamellicornes. FAMILY: Scarabæidæ, _MacLeay_. GENUS. COPRIS, _Geoffroy_. Scarabæus, _Drury_. COPRIS MINUTUS. Niger, capitis cornu parvo erecto, thorace anticè elevato et tuberculato, elytris striatis. (Long. Corp. 4½ lin.) SYN. Scarabæus Minutus. _Drury, App. vol._ 2. Copris Lævis. _Schonh. Syn._ 1. 54. 126. (Nec Lævis, _Drury, tab._ 35. _f._ 7. sec. cit. _Sch._) HABITAT: New York. Entirely black. Head broad and black, extending on each side beyond the eyes, having a small horn on it projecting forwards. Thorax margined, high and prominent, with some small protuberances on its front. Scutellum obsolete. Elytra furrowed, longer than the thorax, and margined; extending beyond the anus. Femora strong and round. Tibiæ small at the base, thickened towards the tips, and armed with spines. COPROBIUS LÆVIS. Plate XXXV. fig. 7. ORDER: Coleoptera. SECTION: Lamellicornes. FAMILY: Scarabæidæ, _MacLeay_. GENUS. COPROBIUS, _Latr._ Ateuchus, _Fabr._ Scarabæus p. _Linn._ COPROBIUS LÆVIS. Niger opacus lævis, clypeo emarginato, thorace postice rotundato, elytrorum lateribus humeralibus haud incisis. (Long. Corp. 9 lin.)