Elaphidion mucronatum Classification Family Cerambycidae > Subfamily Cerambycinae > Tribe Elaphidiini > Genus Elaphidion Diagnostic Features of Larvae Larva. Form robust, elongate, anteriorly depressed; integument tough, shining, rather thickly covered with long golden hairs. Head roundly rectangular, depressed; mouth-frame heavily corneous, dark reddish, bearing a few setae scarcely longer than the antennae; epistoma suddenly and deeply emarginate behind clypeus; mandibles and ventral mouth-parts as in Enaphalodes; labrum suborbicular, hairs dense but not longer than its length; antennal joints subequal or last a little shorter than second; ocelli, two, prominent, globular, enclosed by corneous genal shoulder; process of palpifer very prominent. Prothorax as in Romaic urn, except that hairs on the pleurite are longer and fewer; ampullae less alutaceous and having more of a tendency to be tuberculate; pleural discs not distinct, wrinkled; spiracles broadly oval to suborbicular, peritreme distinct. Other characters as in Enaphalodes. Adapted from Craighead (1923). Biology and Economic Importance The larva feeds in the dead branches of a great variety of hardwoods, mining beneath the bark and deeply scoring the wood, which it enters only to make the pupal cell. This cell enters the wood at right angles to the grain, then suddenly turns parallel to it. It is opened through the bark by the larva. The life-cycle is normally completed in two years. The first year the larva mines beneath the bark. Adapted from Craighead (1923). Selected References to Larvae Specimens Craighead, 1923