. The eastern tent caterpillar . ^igure 6. Nest on chokecherry The egg-clusters do not all hatch at the same time, and it is not un- common to find half-grown and newly-hatched caterpillars in the same vicinity. Mr. Whittlesey stated in a letter to the writer that during the spring of 1902 the hatching period extended over nearly 21 days. The average feeding period is about six weeks, during which time the caterpillars molt, or cast their skins, several times. As they increase in size they become more. voracious and devour the leaves rapidly. At each molting period they stop feeding for a few
. The eastern tent caterpillar . ^igure 6. Nest on chokecherry The egg-clusters do not all hatch at the same time, and it is not un- common to find half-grown and newly-hatched caterpillars in the same vicinity. Mr. Whittlesey stated in a letter to the writer that during the spring of 1902 the hatching period extended over nearly 21 days. The average feeding period is about six weeks, during which time the caterpillars molt, or cast their skins, several times. As they increase in size they become more. voracious and devour the leaves rapidly. At each molting period they stop feeding for a few hours, only to begin again with renewed vigor. When fully grown, the caterpillars cease eating and wander about restlessly for a day or two. Then they spin white, silken cocoons in the grass under the trees, in the crevices of the rough bark, or on buildings, boxes and rubbish that may be near the infested trees. (See Figure 9.) There is only a single brood each year.
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Keywords: ., bookcentury1900, bookpublishernewhavenconnecticutagriculturalex
