. Economic entomology for the farmer and the fruit grower, and for use as a text-book in agricultural schools and colleges; . Spi/osonia viio^inica. the white ermine moth.—a, larva; b, pupa; r, adult. this caterpillar may be recognized by ha\ing the central portions of the body red-brown, while the anterior and posterior segments are black. This produces a uniformly brownish-yellow moth. All the moths fly at night, and are but rarely seen during the day, and all the caterpillars, where they become troublesome, are within reach of the arsenites. An exception to the general feeding habit we find
. Economic entomology for the farmer and the fruit grower, and for use as a text-book in agricultural schools and colleges; . Spi/osonia viio^inica. the white ermine moth.—a, larva; b, pupa; r, adult. this caterpillar may be recognized by ha\ing the central portions of the body red-brown, while the anterior and posterior segments are black. This produces a uniformly brownish-yellow moth. All the moths fly at night, and are but rarely seen during the day, and all the caterpillars, where they become troublesome, are within reach of the arsenites. An exception to the general feeding habit we find in Hyplian- tria cnnea, the caterpillar of which is known as the "fall web- ; The moth is white, sometimes without spot or mark of any kind, usually with onlv a few black dots, but occasionally with the spots forming more or less evident bands across the wing. The eggs are laid in masses on trees, and the larvae, as soon as they hatch, form a little web in which they remain so- cially, except when feeding. They eat first the leaves within, then those close to their nest, gradually separating until some- times an entire tree becomes defoliated from a single point. This
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectinsects, bookyear1906
