. St. Nicholas [serial]. s of cocoons, that make no such cov-ering, the pupa or the chrysalis being left 1904. NATURE AND SCIENCE FOR YOUNG FOLKS. 36S entirely exposed. And so little heat is main-tained by the pupae of insects that no matterhow thick the cocoons, they are always tooslight to repel freezing cold. Certain degrees of frigidity seem to havevastly different effects on different species ofinsects. Gnats and midges dance in the win-ter sunshine; butterflies, Vanessa, Graftta, andsometimes Coltas, skim over the snow; waspsand bees wind their way through the leaflesswoods; ground-beetl
. St. Nicholas [serial]. s of cocoons, that make no such cov-ering, the pupa or the chrysalis being left 1904. NATURE AND SCIENCE FOR YOUNG FOLKS. 36S entirely exposed. And so little heat is main-tained by the pupae of insects that no matterhow thick the cocoons, they are always tooslight to repel freezing cold. Certain degrees of frigidity seem to havevastly different effects on different species ofinsects. Gnats and midges dance in the win-ter sunshine; butterflies, Vanessa, Graftta, andsometimes Coltas, skim over the snow; waspsand bees wind their way through the leaflesswoods; ground-beetles run quickly over thecold earth; crickets peep from beneath stonesand rotting logs; while other species, the vastmajority, in fact, are locked in the lethargy ofhibernation. One of the commonest evidencesof this hibernation is to be seen when fire-woodis carried into the house and placed near thewarm stove. It takes only a short time tobring out a swarm of ants that were sleepingin beetle-borings, their common
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Keywords: ., bookauthordodgemar, bookcentury1800, bookdecade1870, bookyear1873
