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截止1989年资料,地里纤恙螨在云南自北纬21°15′至28°19′之间55.47％的县(市)存在,分布海拔最低76.4米,最高2000米,以1300米以下的河谷地区为主。分布特点:地区不同分布数量比例有别:从南到北分布数量逐渐递减;低海拔地区数量分布显著高于较高的海拔地区。(?)生地主要是江河两岸.河谷地带草丛及盆地山麓灌木草丛地区,呈点状分布.寄生宿主共发现24种,以黄胸鼠及斯氏家鼠为主.在年均温度17℃以上和相对湿度79%以上的地区幼虫各月均可出现.5～10月为数量高峰期.用炭粉管法培养,完成一代生活史需71～125天.在江水等6种水中能生存,且能发育为稚虫,稚虫移入炭粉管又可发育为成虫。幼虫活动时间为8～19时,其中15～16时活动最盛.在人体下肢皮肤爬行的直线距离平均为48.5毫米/分.
As of 1989, there are 55.47% of the counties (cities) in Yunnan, latitudinally from 21 ° 15 ’to 28 ° 19’ in Yunnan with a distribution altitude of at least 76.4 meters, a maximum of 2000 meters and a valley of 1300 meters Region-based. Distribution characteristics: the proportion of different regions have different distribution: the number of distribution from south to north gradually decreases; the distribution of the number of low altitude was significantly higher than the higher altitude. (?) The habitat is mainly on both sides of the river, in the valley grassland and the foothill shrub area, there are a total of 24 kinds of parasitic hosts found, mainly in Rattus flavipectus and Strychni, with average annual temperature above 17 ℃ and The larvae with relative humidity more than 79% may appear in each month, and the peak in quantity from May to October is 71 to 125 days to complete the life history of a generation with the carbon powder tube method, and survive in 6 kinds of water such as river water Can develop into nymphs, juveniles into carbon tube can develop into adults. Larvae activity time of 8 to 19, of which 15 to 16 when the activities of the most active in human skin crawling straight line distance average of 48.5 mm / min.