Insects affecting the orange . phidion inerme. (Original.) irregularly above, with fine ash-gray hairs ; the antennse are not longer than the body. The length varies from 11 to 15 (^01) to ^oo i^^l^) 5 the males are smaller than the 48 illustrates, in all its stages, Elaphidion parcdlehim Newm., a closely allied species, which lives in northern fruit-trees, and has habits similar to the Orange Sawyer. In thefigure, a represents the larva; 6, thepupa in its cell; c, the perfect insect;d, the head; e,f, and </, the mouth i^arts;and /i, the antenna of the larva, enlarged;i and j s
Insects affecting the orange . phidion inerme. (Original.) irregularly above, with fine ash-gray hairs ; the antennse are not longer than the body. The length varies from 11 to 15 (^01) to ^oo i^^l^) 5 the males are smaller than the 48 illustrates, in all its stages, Elaphidion parcdlehim Newm., a closely allied species, which lives in northern fruit-trees, and has habits similar to the Orange Sawyer. In thefigure, a represents the larva; 6, thepupa in its cell; c, the perfect insect;d, the head; e,f, and </, the mouth i^arts;and /i, the antenna of the larva, enlarged;i and j show details of the antennae andtip of the wing-cases, respectively, inthe imago; Z-, the end of the twig whichcontains the borer. The larvseof this beetle are more prop-erly scavengers or pruners, feeding bypreference upon dead branches, not only of Orange, but also of Hickory and other hardwood trees, and confin- iug themselves to the dry and lifeless wood, unless compelled by hunger to enter the living portions of the Fig. 48.—Elaphidion parallehim Newm.:a, larva; b, chvysalis in twig; c, julultbeetle ; d, e, f,(j,h, bead .and nioutb partsof fbe larva; i, part of antenna ; and J,end of wing case of the adult; k, end oftwig, cut off. (After Kiley.) THE COMMON ORANGE SAWYER. 127 The injuries cause<l by them result from careless pruning, and, espe-cially in the case of budded nursery trees, from leaving untrimmed thedead end of the stock above the insertion of the bud. These deadstubs attract the mother beetle, and she deposits one or two eggs ineach. The grubs that hatch confine themselves to the dead ends until theyare completely hollowed out and reduced to mere shells, filled with saw-dust. But if the supply of dead wood fails, they are forced to descendinto the living stock below, and thus weaken the bud if they do not killit outright, undermining the tissues which support it. Protection afforded the Tree by its Gum.—Very frequently ^he larva iupenetrating the
Size: 2034px × 1228px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1880, bookpublisherwashi, bookyear1885
