. Cutworms ed il loro controllo [microformati]. Vers gris; Cutworms; pesti di insetto; Insectes nuisibles. 39 Hnbiln e vita-hiMlory.-VVhil"> thix cutworm in coininoii uiui ampiamente jlintri- lnit<' comunemente da aprile a inizio giugno. Esemplari maturi sono stati frequentemente incontrato con la fine di maggio e duriiiK la prima settimana di .lune. In Kastern Canada abbiamo collecte"l le tarme in numeri in agosto e Heptember. Il engs sono previste in tarda estate o in autunno e inverno è pa.ssed in stadio larvale. In una occasione ho fissato le uova da un captivi' falena femmina il 9 settembre. TiiK Citw striato

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. Cutworms and their control [microform]. Vers gris; Cutworms; Insect pests; Insectes nuisibles. 39 Hnbiln and Life-hiMlory.—VVhil«> thix cutworm in coininoii uiui widely jlintri- lnit<' commonly from April to early June. Mature specimens have been frequently met with about the end of May and duriiiK the first week of .lune. In Kastern Canada we have collecte«l the moths in numbers in August and Heptember. The engs are laid in late summer or autumn, and the winter is pa.ssed in the larval stage. On one occasion, I secured eggs from a captivi' female moth on September 9. TiiK Striped Citwokm, Euxoa teHsellata Harr. Appenrance.—Pale brownish in colour, with a slight yellowish tinge on the back, or dorsum. The sides are dull grey, and the underneath porticm of the body, or venter, is greenish. Down the centre of the back there is a pale stripe margined on either side with dark brown. The markings on the sides are as follows: a wide su))-dorsal brownish stripe (enclosing tubercle ii); a narrow, whitish, upper lateral stripe, touching lower edge of sub-dorsal .stripe; a wider, more conspicuous, white lateral stripe, and a wide, white, stigmatal band. The head and shield on back of first segment are shiny brown, the former mottled with darker brown and the latter divided by three pale .stripes. The tubercles on the body are dark bnvvvn, and the spiracles are black. The front feet are pale brownish and the pro-legs, or posterior feet, are similar in colour to that of the under side of the body. When full grown this cutworm is about 11 inches long.. Klo. 19.—The Stripi'il Cutworm: a, lutcrul iiapci't: h, dorital uHpcrt—onc-quurtiTcnlarg<l. {Original). Fio. 20.—Moth of .Strip<'d f'utworm, Euiaa tesaetlnla—nutural :ii»o. (Original). The moth which is known as the Checkered Rustic is from about IJ to nearly 1^ inches wide when the wings are expanded. The front wings are brown- ish-grey, with a pale pinkish tinge. The cross lines are readily apparent,

Parole chiave associate all'immagine

• bookcentury1900
• bookdecade1910
• booksubjectinsectp
• bookyear1915