Titan Beetle

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PRONUS (TITANUS) GIGANTEUS. Plate XLIX. fig. 1. Order: Coleoptera. Section: Longicornes. Family: Prionidæ. Genus. Prionus, Geoffroy. Cerambyx P., Linn. (Subgenus: Titanus, Serv. Ann. Soc. Ent. France, 1. p. 133.) Prionus (Titanus) Giganteus. Thorace utrinque bidentato, corpore nigro, elytris ferrugineis, antennis brevibus. (Long. Corp. 6 unc. 9 lin.) Syn. Cerambyx Giganteus, Linn. Mant. 1. 531. Shaw Nat. Misc. t. 280. Fabr. Syst. El. 2. 261. 17. (Prionus g.) Oliv. Ent. 4. 66. p. 12. t. 6. f. 21. Habitat: Cayenne. Head and thorax black; all the rest of the insect dark brown. Jaws broad and thin, the extremities bending inwards towards each other. Antennæ thickest at their base, and about half the length of the insect, gradually diminishing in size to the extremities. Thorax smooth and rounded at top, the middle appearing as if polished; the sides rough, like shagreen, and armed with two short and pointed spines, like horns; it is also margined. Scutellum small and bell-shaped. Elytra deeply margined on their sides and suture; faintly ribbed, each having five placed longitudinally, the surface very rough. Sides of the abdomen covered beneath with a dark brown velvety pile. Legs with short strong tibial spurs. - source