. An address upon farm pests, including insects, Fungi, and animalcules . Fig. 20. THE CURRANT-WORM. Nematiis Ventricosus. Klug. <i, a, a, different stages of growth; b, a single segment of the caterpillar Fig. specimens enlarged. The marks at ihe side represent the actual measurement withwings spread. <i, male ; b, female. This worm is so common and so well known in New Hamp-shire that it needs no description. It affords an excellent ex-ample of the wonderful rapidity with which an important insect 32 may increase and flourish in this country. It was imported fromEu
. An address upon farm pests, including insects, Fungi, and animalcules . Fig. 20. THE CURRANT-WORM. Nematiis Ventricosus. Klug. <i, a, a, different stages of growth; b, a single segment of the caterpillar Fig. specimens enlarged. The marks at ihe side represent the actual measurement withwings spread. <i, male ; b, female. This worm is so common and so well known in New Hamp-shire that it needs no description. It affords an excellent ex-ample of the wonderful rapidity with which an important insect 32 may increase and flourish in this country. It was imported fromEurope in i860, into nurseries, in Rochester, N. Y. Since thattime it has not only spread eastward throughout New England,but to the Far West. It is a dreadful pest to the currant andgooseberry bushes, and in sections where it has been left to doits work unchecked such fruits are numbered as things of thepast. Though near fifty species of the Nematus are natives of thiscountry, this little foreigner has forced himself so disagreeablyto our notice that we almost forget the ravages of the nativevarieties. Though the worm is so well known, the fly that causes themischief is seldom noticed. The female is of a bright ho
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