Fifth report of the United States Entomological Commission, being a revised and enlarged edition of Bulletin no7, on insects injurious to forest and shade trees . ue, not fringed with hair. Femalo: Club of anteun<e without apical spine ; declivity of elytra as in male, butwith the reniform elevation and its two cusps much stronger ; head slightly convex,subopaque, feebly punctured. Lake Superior to Florida; depredates on apple trees. Length, 2 (.08 inch). (Le Conte.) 42. Ithycerus noveboracensis (Forster). According to Riley this weevil in-fests the oak, having been seen bor-ing into the tw
Fifth report of the United States Entomological Commission, being a revised and enlarged edition of Bulletin no7, on insects injurious to forest and shade trees . ue, not fringed with hair. Femalo: Club of anteun<e without apical spine ; declivity of elytra as in male, butwith the reniform elevation and its two cusps much stronger ; head slightly convex,subopaque, feebly punctured. Lake Superior to Florida; depredates on apple trees. Length, 2 (.08 inch). (Le Conte.) 42. Ithycerus noveboracensis (Forster). According to Riley this weevil in-fests the oak, having been seen bor-ing into the twigs of the burr-oak;the larva is of the usual curculioni-form appearance. The female firstmakes a small longitudinal excava-tion with her jaws, eating upwardtoward the end of the branch, thenturns round and thrusts her egg intoit. She was observed in the act byMr. Charles Peabody. (Rileys un-published notes.) 5pc<Ze.—This is our largest species of weevil,and may be recognized by its great size, byits broad, large snout, its ash color, and bythe eight pale lines on the wing-covers, inter-rupted by four or five distinct black squarish spots. Length, Fig. 35. Ithycerui noveboracetuig. THE SEVENTEEN-YEAR CICADA. 95 43. The seventeen-year Cicada. Cicada septendeciinhmu. Order Hemiptera ; Family Cicadari^e. Stiuging the termiual twigs of the oak and other forest trees and of various fruittrees, the seven teen-year locust, which deposits its long slender eggs in a broken linealong the twig. Without attempting to recapitulate the history of this famous insect,we would only say that the eggs are deposited from the end of Maythrough June (Fig. 36, d, e) in pairs in the terminal twigs of the oak, larvte (Fig. 36,/) hatch out in about six weeks after they are depos-ited, and drop to the ground, in which they live, sucking the roots oftrees, etc.^ for nearly seventeen years, the pupa state (Fig. 36, tt, b) last-ing but a few days. The following remarks on the habits of thi
Size: 1228px × 2035px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1890, bookpublisherwashingtongovtprin
