. Tent caterpillars [microform]. Forest tent caterpillar; Insect pests; Livrées (Insectes); Livrée des forêts; Tent caterpillars; Insectes nuisibles, Lutte contre les. 10 The Calerpillnr. Fin. 's about two inchea long when full grown. The ground colour of its body is bluish or nearly black, and it has a series of conspicuous white or cream-coloured spots along the middle of the back, with two brownish-yellow bands along the upper part of each side. The row of spots along the middle of the back diBtinguishcs this species from the American Tent Caterpillar, which has a continuous whitish band as
. Tent caterpillars [microform]. Forest tent caterpillar; Insect pests; Livrées (Insectes); Livrée des forêts; Tent caterpillars; Insectes nuisibles, Lutte contre les. 10 The Calerpillnr. Fin. 's about two inchea long when full grown. The ground colour of its body is bluish or nearly black, and it has a series of conspicuous white or cream-coloured spots along the middle of the back, with two brownish-yellow bands along the upper part of each side. The row of spots along the middle of the back diBtinguishcs this species from the American Tent Caterpillar, which has a continuous whitish band as previously described. 3 2. Kio. 6. 1, the American Tent Caterpillar: 2 and 3, the Forwt Tent Cateriiillar. (Slightly enlarged). I'lie Egg-mass, Figs. 2, 3. and 5, is deposited in a ring-like band usually sur- rounding the smaller twigs of the trees upon which the caterpillars feed. When the jnoths are very abundant the epg-masses are laid promiscuously upon almost any available surface. Xornially, the egfr-niass surrounds the twig as a shining, thick, dark-coloured baud containing from l.'iO to iifiO eggs imbedded in a glue-like substance which hardens and holds them in place. The masses are very similar to those of the American Tent Caterpillar, but are more squarely cut at the end. Life-history and Hahifs.—The general life-history is similar to that of the American Tent Caterpillar. The winter is passed in the egg-stage on the twigs. The caterpillars emerge from the eggs in early April about the time the leaf buds are bursting, and feed upon the (ipcning buds and leaves. The caterpillars from each egg-mass usually keep togetlicr and fewl in congress. They spin an almost invisible silken thread wherever they go. but construct no tent. At intervals, particularly during cold weather, they crowd tnpether on the trunk or upon the side of a large branch; and when they are half grown or over, these patches of caterpillars are quite con- spicuous. The majority of the c
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectinsectp, bookyear1913
