山东费县五种恙螨季节消长观察

OB SERVATIONS ON THE SEASONAL FLUCTUATION ON FEVE SPECIES OF CHIGGER MITES IN FEI COUNTY,SHANDONG PROVINCE

作者于１９９５．５～１９９６．４对山东费县农田野鼠体外五种恙螨季节消长进行了逐月观察。结果表明，须纤恙螨主要出现在秋冬季（１０月至翌年４月），高峰在１２月份，为冬季优势螨种；临淮岗纤恙螨５月份始现，１１月份消失，高峰在８月份，为夏季优势种；小盾纤恙螨集中出现在秋季及初冬（９～１２月），其高峰在１１月份，是９～１２月间鼠体外绝对优势螨种；泰山纤恙螨主要出现在６～１０月份，该螨种数量起伏较大；太平洋无前恙螨全部采自大仓鼠，主要出现在４～１２月，高峰期在７月份。阐明当地不同季节优势螨种对研究该地恙虫病以及肾综征出血热（ＨＦＲＳ）传播媒介具有十分重要的意义。

This article reports observations on fluctuations of five species of chigger mites in crop fields of Fei county,Shandong Province from 1995.5 to 1996.4 monthly.L.palpalis appeared in autumn winter(from October to April of the second year),the peak was at December;L.linhuaikonense first appeared in May,and disappeared in November,with peak at August,and was dominate in summer;L.scutellaris appeared massively in autumn and early winter(September,October,November,December),the existing time of this mites was very shorter,but the density index of chigger mites was very high,and was absolutely dominate from September to December,the peak was at November;L.taishanicum mainly appeared from June to October;W.Pacific was all collected from Cricetulus triton and appeared from April to December,the high peak was at July.