东疆沙蜥和密点麻蜥的食性研究

本文对东疆沙蜥和密点麻蜥的食性特征进行了调查研究。结果表明：（１） 这两种蜥蜴的食物组成是小昆虫，主要是鞘翅目、膜翅目和半翅目等对人类有害的昆虫。（２） 食物的充塞度和活动个体数在春季有一个高峰，而在夏季有两个高峰。（３）在食物成分上有季节性变化，在春季主要猎食象鼻虫而夏季主要猎食蚜虫。（４） 它们的有益系数大于其它的两栖类和爬行类动物。

Analysis on Feeding Habits of Phrynocephalus Grumgrizmaloi and Eremias Multiocellata from Xinjiang

This paper deals with the preliminary studies on feeding habits of Phrynocephalus grumgrizmaloi, Badriaga and Eremias multiocellata, Guenther. The results show that: 1. The diets of the two lizards consist of small animals in beings.2 Generally, the cumulative curves of the numbers of individuals in activity and the gastrointestinal filling grades exhibit a single peak in spring and a double peak in summer. 3. There is a seasonal change in the component of the food taken. they are eat Scarabaeidae most in spring and Curculionidae in summer. 4. Their benificial coeficients are much greater than those of other amphibians and reptiles.