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镰形扇头蜱(Rhipicephalus haemaphysaloides haemaphysaloides)在福建省家畜体表出现于3月中旬至7月中旬,以4月下旬和5月上、中旬为寄生高峰期。经人工饲养观察。该蜱属于三宿主蜱,每年发生1代。雌蜱吸血期6-14 d,产卵期14-27 d,卵期25-43 d。幼蜱吸血期2-5 d,若蜱吸血期2-4 d,自雌蜱吸血至下一代成蜱出现共需72-127 d.雌蜱一生共产卵1252-5970粒,以未吸血成蜱越冬.未吸血的幼蜱和若蜱分别能存活2-3个月和3-4个月.
The investigations on Rhipicephalus haemaphysaloides haemaphysaloides Supino, 1897 were maked in Chongan County,Fujian,China,1988-1990.The results shown:The tick appears 1 generation a year.The adults appear on buffaloes from March to middle July.The peak in numbers was reached from April to middle May,which disappeared entirelly in mid- dle July.The time when the female starting to feed up to next generation adults emerging ex- pended 72-127d(on the average were 99.9 d)which were influenced chiefly by atmospheric temperature.The oviposition period lasted for 14-27 d.1259-5970 eggs(on the average were 3966 eggs)could be laid by a female.The ticks overwintered with unfed adult stage. The longevity of the unfed adults could last for about Ⅱ months,of the larvae could last 2-3 months,and of the nymphs could last 3-4 months.Both larvaes and nymphs could not toler- ate hardness of winter.