本文研究了该螨的主要生物学特性和有效积温。
The principal biological characteristics and the effective accumulated temperature were studied.
在食物缺乏的情况下，该螨存在相互残杀的现象。
When food was deficient, the predatory mites killed each other.
花粉粒的外部形态结构，是影响该螨能否取食的重要因素之一。
Surface structure of the pollen grains was found to be one of the major factors affecting the feeding behavior of the predator.
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