摘要
本文系统报告了山羊蠕形螨（Ｄｅｍｏｄｅｘｃａｐｒａｅ）雌虫口下板、赘肢、消化系统、生殖系统、神经系统和肛道的超微结构。首次发现该螨中肠呈不规则囊状，并见肠腔中有溶酶体和食物相混合，证明该螨还具有细胞外消化特点。
it was described in systematical study on the ultrastructure of the hypostome,the chelicera,the digestive sytem,the reproductive system,the nervous system and the proctodeum of the Demodex caprae female. It was discovered for the first time that the midgut of the mite have the shape of irregular bladder and there is mixture of food and lysosome in the midgut cavity. It was confirmed that extracellular digestion-is one of the character of the mite.
