Abstract:

Objective To investigate the species, geographic distribution, and seasonalality of ticks in Henan province, China. Methods The specimens of free ticks and ectoparasitic ticks were collected with white cloth from grassland and picked from animals'body surfaces, respectively, throughout Henan province from 2011 to 2012. Results Eight species of ticks belonging to 6 genera and 2 families were found in the province. These ticks were Haemaphysalis longicornis, H. phasiana, H. flava, Rhipicephalus microplus, Dermacentor sinicus, Ixodes sinensis, Hyalomma detritum, and Argas reflexus. H. longicornis was distributed throughout the whole province and was the dominant species of ticks in Henan. It was found first in March or April, achieved the highest density in July or August, and became dormant after October. After winter, it reappeared in March or April of the next year. Conclusion There are relatively abundant species of ticks in Henan and they are widely distributed in the province. The activity peak of H. longicornis is in summer and autumn.

Key words: Tick, Species, Geographic distribution, Seasonal variation

摘要：

目的 掌握河南省蜱的种类、地理分布和季节消长。方法 2011-2012年在全省范围内采用布旗法和体表查捉法分别调查野外游离蜱和动物体表寄生蜱。结果 全省共采集到蜱2科6属8种,分别是长角血蜱、雉鸡血蜱、褐黄血蜱、微小扇头蜱、中华革蜱、中华硬蜱、残缘璃眼蜱和翘缘锐缘蜱,其中长角血蜱遍布全省。优势种长角血蜱3-4月开始出现,7-8月达到密度最高值,之后逐渐消退,10月以后进入蛰伏,越冬后至次年再次出现。结论 蜱在河南省的分布广泛,种类较多,优势种长角血蜱的活动以夏、秋季为高峰期。

关键词: 蜱, 种类, 地理分布, 季节消长