Insects like ladybugs, emerald ash borers, and mourning cloak butterflies burrow into soil or leaf litter for warmth.
瓢虫、翡翠灰蛀虫和丧斗篷蝴蝶等昆虫会钻入土壤或落叶层中取暖。
英语百科
Nymphalis antiopa
(重定向自Mourning Cloak)
Nymphalis antiopa, known as the Mourning Cloak in North America and the Camberwell Beauty in Britain, is a large butterfly native to Eurasia and North America. See also Anglewing butterflies.
The immature form of this species is sometimes known as the spiny elm caterpillar. Other older names for this species include Grand Surprise and White Petticoat. A powerful flier, this species is sometimes found in areas far from its usual range during migration.