Front of the head green. Eyes brown, large, and placed close together; behind each are two yellow spots, one round, the other oblong. Thorax hairy, and of a dirty brownish green; having on the sides two long yellow spots placed obliquely above one another, the under one being the shortest. Abdomen flattish, but triangular; in the male blue, but in the female yellow. Legs black. Wings transparent, with a small brown cloud on the tip of each; from whence issues along the anterior edge, a slender black stroke near the middle of each wing. Another small brown cloud begins on the anterior edge, and reaches about two-thirds cross the wing. At the base of each, also, a third dark cloud of a longish form seems to extend from the body near the anterior edge, to almost a third part of the wing. Between these clouds the males have a remarkable white patch or spot on each wing, and also another on the abdominal edge of the posterior ones, all which are not to be discerned in the females. PLATE XLIX. [Illustration] LOCUSTA (RUTIDODERES) SQUARROSA. Plate XLIX. fig. 1. ORDER: Orthoptera. SECTION: Saltatoria. FAMILY: Locustidæ (Acridites, Serv.). GENUS. LOCUSTA. Gryllus; Sect. Locusta, _Linn._ Gryllus, _Fabr._ Acrydium, _Latr._ (SUBGENUS. Rutidoderes, _Westw._ Acrydium, _Serv._ ) LOCUSTA (RUTIDODERES) SQUARROSA. Viridis, pronoto tripartito spinoso, elytris viridibus fusco-punctatis, alis rubris nigro punctatis. (Expans. Alar. 4 unc.) SYN. Gryllus Squarrosus, _Linn. Mant._ 533. _Fabr. Ent. Syst._ 2. 52. HABITAT: Sierra Leone. {120}Head green. Eyes perfectly round and dark brown, very prominent, and standing at a little distance from each other. Antennæ 18-jointed, longer than the thorax, which is dark green, and on the upper part gibbous; having on each side three swellings, each of which terminates in three short and thick spines. Tegmina darkish green, with a great number of small black spots on them of different shapes. Wings scarlet, spotted with black; the spots being larger than those of the wing-cases, and of different shapes. Abdomen green, with several yellow rings surrounding it, and about the same length as the tegmina. Legs green; the thighs being armed with spines. Our author states, that he was informed by a gentleman who lived several years at Sierra Leone, and by whom this species was communicated to him, that "they appear about the end of June, and soon afterwards retire among the branches of the palm trees, where they reside till the violent rains compel them to quit that situation, and live among the plants, &c. on the ground." In the Introduction to the third volume, he however states on the authority of Mr. Smeathman, that "this beautiful locust is an inhabitant of the sandy plains, called Savannas, which indeed abound with palms; but my friend is in doubt whether they have any kind of predilection for those trees.