中文摘要：

为阐明长角血蜱Haemaphysalislongicornis孤雌生殖种群的哈氏器结构及发育特征，用扫描电镜对其各虫期哈氏器进行了观察，分析了血餐对哈氏器发育的影响。结果表明：该种群幼蜱、若蜱和成蜱哈氏器形态结构基本相同，均由前窝和后囊构成。幼蜱前窝感毛6根，位于同一基盘；若蜱和成蜱哈氏器相似，前窝感毛7根，其中1根孔毛位于外侧基盘，另6根感毛位于内侧基盘。各虫期饱血后哈氏器大小均比饥饿状态下显著增大（P〈0．05）。幼蜱前窝与后囊面积比值与若蜱相比无显著差异（P〉0．05），若蜱前窝与后囊面积比值与成蜱相比差异显著（P〈0．05）。各虫期哈氏器均在发育，且血餐对哈氏器发育有重要影响。幼蜱至若蜱期哈氏器前窝与后囊的发育速度相似，若蜱至成蜱期哈氏器前窝发育快于后囊。本研究结果在一定程度上揭示了孤雌生殖长角血蜱的哈氏器发育规律。

英文摘要：

In order to illustrate the structure of Haller＇ s organ and its development in parthenogenetic Haemaphysalis Iongicornis, the Hailer＇ s organ of ticks from the parthenogenetic population of H. Iongicornis during different developmental stages （larval, nymphal, and adult stages） was investigated with scanning electron microscopy and the effect of blood feeding on the development of Hailer＇ s organ was also analyzed. The results showed that there was no essential difference in Hailer＇ s organ of all three developmental stages, which is composed of an anterior pit and a capsule. The Hailer＇ s organ contains six sensilla located on the same basal disc in the larva. However, it contains seven sensilla in the nymphal and adult stages. A pored sensillum is located on later-basal disc and other six sensilla are located on the basal disc. The Haller＇ s organ of the adult was similar to that of the nymph. The area of the Hailer＇ s organ was significantly bigger in engorged individuals than that in unfed ones （ P 〈 0.05 ） during the larval, nymphal and adult stages. The ratio of the anterior pit＇ s area to the capsule＇ s has no significant difference between the larval stage and nymphal stage （ P 〉 0.05 ） , while has a significant difference between the adult stage and nymphal stage （ P 〈 0.05 ）. The development of Haller＇ s organ occurs in all three stages of the tick and is affected by the blood feeding. The results also indicated that the development of the anterior pit is as fast as the capsule from the larval stage to the nymphal stage, while the development of the anterior pit is faster than the capsule from the nymphal stage to the adult stage. The results partly reveal the development law of the Hailer＇ s organ in H. longicornis.