. Cooperative economic insect report. Beneficial insects; Insect pests. 1130 larvae which almost always kill the young trees which they attack. Mating occurs on small branches of the host in July and oviposition begins shortly thereafter. The eggs are deposited on the trunk at or slightly below ground level. Females lay from 50-120 eggs. The eggs hatch rapidly but larval development is slow, lasting 2 years. One or more larvae may be found per trunk, near or at ground level. They are found under the bark or deep in the wood in large galleries. Normally the larva is found in a "U" sha
. Cooperative economic insect report. Beneficial insects; Insect pests. 1130 larvae which almost always kill the young trees which they attack. Mating occurs on small branches of the host in July and oviposition begins shortly thereafter. The eggs are deposited on the trunk at or slightly below ground level. Females lay from 50-120 eggs. The eggs hatch rapidly but larval development is slow, lasting 2 years. One or more larvae may be found per trunk, near or at ground level. They are found under the bark or deep in the wood in large galleries. Normally the larva is found in a "U" shape. The attack is more severe in trees 2 to 3 years of age. Pupation occurs in a cell 3 cm. long in the lower trunk or principal roots. Pupation lasts about one month. Description: ADULT - This buprestid is large, ranging from 15 to 27 mm. with the males smaller than females. Males rarely over 20 mm. in length. Color generally dull black. Head large, sunk in the thorax. Eyes brown, elliptical. Antennae serriforra, 11-segraented, longer than head and folded under prothorax when insect is at rest. Pronotum large, much broader than long, slightly wider than base of elytra, with sides rounded. Surface with dense, pruinose punctures and numerous glazed areas. Elytra sturdy, large, coriaceous, uniformly dull black, to 3 times longer than pronotum. Punctation, under a hand lens, elongate, irregular and arranged in striae. Legs relatively short; tarsi strongly dilated, with curved bristles on internal surface. Ventral surface of body dull black. Underwings membranous, well developed, smoky colored. EGG elliptical, white, opaque, 1 mm. x mm. LARVA - Full-grown larva 60-65 mm., white, flabby, legless. General appearance similar to that of other buprestid larvae. (Prepared in Survey and Detection Operations in cooperation with other ARS agencies). CEIR 10(50) Adults of Capnodis tenebrionis (Showing Variation) Major reference: Balachowsky, A. and Mesnil, L. 1935. Les Inse
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