Outlines of entomology . nct spots, the one round, the other kidney-shaped (orbicu-lar and reniform). The true cut-worms are smooth, dingy-coloredcaterpillars, many of which commonly rest in a coiled position. Theyconceal themselves by day and crawl out by night to their work ofdestruction, cutting off not only tender herbaceous vegetation, butascending trees and vines to nip off the young leaves. When readyto transform, these worms burrow into the earth or conceal themselves under rubbish on its surface, but never spin any regular cocoon. The well-known Army worm (Leiicania unipuncta, Haw.),


Outlines of entomology . nct spots, the one round, the other kidney-shaped (orbicu-lar and reniform). The true cut-worms are smooth, dingy-coloredcaterpillars, many of which commonly rest in a coiled position. Theyconceal themselves by day and crawl out by night to their work ofdestruction, cutting off not only tender herbaceous vegetation, butascending trees and vines to nip off the young leaves. When readyto transform, these worms burrow into the earth or conceal themselves under rubbish on its surface, but never spin any regular cocoon. The well-known Army worm (Leiicania unipuncta, Haw.), whichsometimes devastates numerous grain tields in a single march, is oneof the representatives of this group. So, also, is the wide-spread Cornworm or Boll worm (HeliotMs armigera, Hub.) See Fig. 34. The largemoths of the genus Catocala, easily recognized by their gaily bandedunder-wings, in which scarlet, crimson, orange or white alternates withblack, are also included in the family Noctuid^. 88 OUTLINES OF The Span-wormmoths (Geomet-RiD^) are mostlyof pale, delicatecolors, with slen-der bodieSjbroadthin wings, whichin repose arespread out atright angles fromthe body, and bythe usuallyslight-ly or broadlyfeathered anten-nse. In this fam-ily the femalesare sometimeswingless. Thelarvse are called MeaSurin g Lime-tree Winter moth (Hijbernia tifiaria, Har.) after Riley. On left above,, ,,^ is the broad-winged male, while the spider-like creature below is the worms or fepan female, which never acquires wings; on right, caterpillars. worms from their looping mode of crawling. This is necessitated bythe lack of two or three pairs of the abdominal pro-legs, so that incrawling the hinder end of the body is brought up close to the headat every onward motion. These worms are generally long, slender andcylindrical. Some have bud-like or scale-like humps on the body, sothat when the latter is at rest and held out from a branch in an obliquedirection, it simulates a twig so cl


Size: 1577px × 1584px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: ., bookcentury1800, bookdecade1890, booksubjectentomology, bookyear1