所有幼虫都是直形背部略带锥形。
All the larvae are straight, with a slight taper towards the rear.
第一、二期幼虫的特征为尾尖骤然尖细，第三期幼虫的特征为头部具一对倒“U”形棕色结构。
The first and second-stage larvae were characterized by their abruptly thinned tail ends and the third-stage larvae were characterized by a pair of inverted U-like structures of the head.
也称为幼虫，是灰白至蓝白色，C形，以腐烂的有机物为食，例如树桩和植物的根。
The larvae, also called 'white grubs', are greyish-white to bluish-white in color, C-shaped, and also feed on decaying organic matter, such as tree stumps, and the roots of plants.
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