CEILAMBYX, in natural history, a nus of insects of the order Coleopt . Antenna setaceous ; feelers fbur ; tho x spinous or gibbous ; shells linear., f this very beautiful and finely variegat family, many hundred species have, naturalists, been noticed and They have separated them into four di .
sinus, viz. A. feelers equal, filiform ; the subdivisions in this class are, a. jaw cy.
; in some the thorax has moveable spines, in others the thorax is margined ; b. jaw obtuse, one-toothed ; e. jaw bifid, horny ; d. jaw bifid, mem branaceous, thorax unarmed. B. feelers equal, capitate ; thorax spinous. C. feel. ers equal, clavate ; thorax unarmed. D. feelers unequal, the two fore-ones fili form, the hind-ones clavate. The larva; of this. genus resemble soft, oblong, slender worms, with a scaly head and six hard legs on the fore part : they bore through the inner parts of trees, pulve rizing the wood, and are transformed into perfect insects in the cavities which they make : many of them diffuse a strong smell, perceivable at a great distance ; and some when taken utter a sort of cry, produced by the friction of the thorax on the upper part of the abdomen and shells. The antenna are deemed short
when they are shorter than the body; mo derate when of equal length with the bo dy ; and long when they exceed the body. In the division C. the species violaceus, so called from the colour of its body, is found chiefly in fir timber which has been felled some time, and which has not been stripped of its bark : it bores serpentine cavities between the bark and the wood, which are larger in diameter as the in sect increases in size, filling the space it leaves behind with its excrement, which resembles saw-dust. 7