Head and eyes brown. Thorax dark yellow in front; the hinder part brown, the sides terminating in two obtuse spines. Scutellum yellow, brown in the middle. Hemelytra brown, with a yellow spot on the middle of the anterior edges. Legs yellow-brown, the fore ones having a remarkable spine on the thighs, placed near the tips. Rostrum strong, extending as far as the middle legs. Abdomen with two lateral dark indented lines extending to the anus. I have been compelled to propose another specific name for this insect, that given to it by our author being quite inexpressive. CERBUS? FLAVEOLUS. Plate XLIII. fig. 3. ORDER: Hemiptera. SUBORDER: Heteroptera. SECTION: Geocorisa. FAMILY: Coreidæ, _Leach_. GENUS. CERBUS? _Hahn._ Cimex, _Drury_. CERBUS? FLAVEOLUS. Fuscus, pronoti marginibus fasciâque angulatâ elytrorum fulvis; abdomine rufo, nigro marginato. (Expans. Alar. 1 unc. 9 lin.) SYN. Cimex flaveolus, _Drury_, _App. vol._ 3. HABITAT: Sierra Leone. Head dark orange. Antennæ filiform, four-jointed, about three-fourths the length of the insect. Thorax brown, edged with yellow. Scutellum triangular, not large, brown. Hemelytra brown, one-half of the posterior edge next the body having a yellow line running along it, crossing the middle, and {59}ending at the anterior edge. Wings diaphanous. Abdomen red, edged with black. Rostrum slender, and extending just below the fore-legs. Legs yellow-brown. Tibiæ and tarsi almost black. DIASPIDIUS SCAPHA. Plate XLIII. fig. 4. ORDER: Hemiptera. SUBORDER: Heteroptera. SECTION: Geocorisa. FAMILY: Reduviidæ, _Leach_. GENUS. DIASPIDIUS, _Westw._ Cimex, _Drury_. DIASPIDIUS SCAPHA. Fulvus; capite, antennis, pronoti lobo antico, membranâ elytrorum pedibusque nigris. (Expans. Alar. 2 unc.) SYN. Cimex Scapha, _Drury_, _App. vol._ 3. HABITAT: Sierra Leone. Head very small, black, hairy, and long. Antennæ filiform, about half the length of the insect. The fore part of the thorax is hairy and black; the remainder and the scutellum yellow-brown. Basal half of the hemelytra orange-coloured, the remainder dark brown. Wings diaphanous. Abdomen brown-yellow. Rostrum short and black, not reaching to the fore-legs, which are black. Middle and hind legs partly black and brown. This insect differs so much from the other species of the extensive family Reduviidæ, that I have been compelled to raise it to the rank of a distinct genus, the characters of which are as well marked as those of the majority of the genera recently proposed by the Continental Entomologists in this group. Its characters as a genus are-- Caput parvum. Antennæ breves vix longitudine thoracis, 4?-articulatæ; articulo 2ndo., 1mo. et 3tio. breviori. Pronotum posticè in lobum magnum depressum, supra scutellum et basin alarum productum. Hemelytra marginem lateralem abdominis haud tegentia. Tarsi ut videtur 1-articulati. PYRRHOCORIS PRINCEPS. Plate XLIII. fig. 5.