. Insects injurious to fruits. Illustrated with four hundred and forty wood-cuts. Insect pests. 338 INSECTS INJURIOUS TO THE RED CURRANT. similar in its habits, bat it may be distinguished by its smaller size and by the absence of feet. It is a small, white, cylindrical, footless larva, with a brown head and black jaws,, which also feeds upon the pith of the stems, rendering them hollow and often killing them. Usually several, and sometimes as many as eight or ten, of these borers are found within the same cane. The change to a chrysalis takes place within the stalk, and in the latter part of
. Insects injurious to fruits. Illustrated with four hundred and forty wood-cuts. Insect pests. 338 INSECTS INJURIOUS TO THE RED CURRANT. similar in its habits, bat it may be distinguished by its smaller size and by the absence of feet. It is a small, white, cylindrical, footless larva, with a brown head and black jaws,, which also feeds upon the pith of the stems, rendering them hollow and often killing them. Usually several, and sometimes as many as eight or ten, of these borers are found within the same cane. The change to a chrysalis takes place within the stalk, and in the latter part of May or early in June the perfect insect escapes. This is a small, narrow, cylindrical, brownish beetle* (See Fig. 351, where it is represented magnified, the outline figure at the side showing the natural size.) The Fig. 351. wing-cases are of a darker brown behind the middle; there is a whitish dot on the anterior part of each elytron, and a large, slightly oblique, and sometimes crescent- shaped spot of the same color just behind the middle; the antennae are slender, and nearly as long as the body. The beetle flies during the day^ but is much less active than No. 202, and hence more easily captured. The cutting out and burning of the infested stalks will be found of great advantage in this instance also. This borer is sometimes attacked by parasites. No. 204.—The Currant Bark-louse. Lecanium ribis Fitch. Early in the spring there are sometimes seen on the bark of currant-stems brownish-yellow, hemispherical scales, about one-third of an inch in diameter, under w^hich will be found a quantity of minute eggs: as the season advances, these hatch, when the young lice distribute themselves in all directions over the twigs, puncturing them with their beaks, and absorbing the sap. Another species, called the Circular Bark-louse, Aspidiotus circularis Fitch, is mentioned by Dr. Fitch as occurrino* on. Please note that these images are extracted from scanned page images that may hav
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