Identifier: naturalhistoryof01dunc (find matches)
Title: The natural history of beetles : illustrated by thirty-two plates, numerous wood-cuts, with memoir and portrait of Ray
Year: 1852 (1850s)
Authors: Duncan, James, 1804-1861 Jardine, William, Sir, 1800-1874 Lizars, W. H. (William Home), 1788-1859, engraver
Subjects: Ray, John, 1627-1705 Beetles
Publisher: Edinburgh : W.H. Lizars London : Henry G. Bohn
Contributing Library: Smithsonian Libraries
Digitizing Sponsor: Smithsonian Libraries

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e surfacepolished and shining. The whole body is variegatedwith black markings, arranged in a manner some-what similar to those in the preceding species, buthaving a greater tendency to run together and formpatches. The under parts of the body, and the legs,are deep black and very glossy. It is a native ofBrazil. Having now illustrated at considerable length thefirst tribe or principal division of the lamellicornes,we shall proceed to give some examples of the se-cond, which corresponds, as was already mentioned,to the genus Lucanus of Linnaeus. The Lucanid^have ten-jointed antennae, the club or thickenedportion of which consists of long teeth or leafletsarranged on an axis in the manner of a comb (PlateXVIII. left-hand Jiff.). The mandibles are usuallyof very large size in the male, and furnished withstrong teeth, which renders their appearance rathermore formidable than that of most other beetles.The tarsi terminate in two simple claws, havingtwo strong bristles placed between them.
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1. < hr</s///t<t/h/i.Y Ghlteerisn2 Lucanus Ccrvits COLEOPTEEOUS INSECTS. 223 CHIASOGNATHUS CHILOENSIS. PLATE XVIII. Fig. 1. Tetrophthalma chiloensis, Lessons Illus. de Zoologie, pi. 24.—Chiasognathus Grantii ? Cambridge Phil. Trans, iv.pi. 9 and 10. This singular genus is characterised by the lengthof the mandibles, which equals or exceeds that ofthe whole body, and by the extraordinary elonga-tion of the lowest joint of the antennae, which isornamented with a tuft of hairs at its tip. ft wasestablished by Mr Stephens on an insect receivedfrom the island of Chiloe, and its characters pub-lished in the Cambridge Philosophical Transactionsfor 1831.* More recently M. Lesson has figuredan insect which obviously belongs to the same ge-nus, although he has thought proper to distinguishit by a new name. Indeed it is extremely probablethat it is the same species as that described by MrStephens; but as it differs in a few minute particu-lars, it will be better in the mean ti

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