Studies on the Funa of Chigger Mites from Northern and Central Shaanxi Provirce
- VernacularTitle:陕西关中、陕北地区的恙螨调查
- Author:
Minru ZHANG
- Publication Type:Journal Article
- From:
Journal of Xi'an Jiaotong University(Medical Sciences)
1981;0(03):-
- CountryChina
- Language:Chinese
-
Abstract:
The present survey was carried out during 1955-1973 in Bouji County,Hunglung County as well as Changan County of Shaanxi Province. Two hun-dred and seventy two speciments of chigger mites from rodents in theseareas was determined. Fifteen species of chigger mites belong to two subfa-milies and seven generas, of which eleven specics was found in the Hung-lung area of Northern Shaanxi and ten species in Central Shaanxii, ncludingthe Chouchi, Bouji and Changan areas. The chigger mites, L. palpaliswere a dominant species for Central Shaanxi, but this species does notappear for the Hunglung area of Shaanxi, Province. The other species ofchigger mites found during this survey are recognized as follows: Shunsenia hunglungensis Muitisetosa major Odontacarus majestica Euschongastia indica Euschongastia ikaoensis Euchongastia Spp. Neoschongastia gallinarum Neotrombicula japonica Neotrombicula ichikawai Neotrombicula tamiyai Leptotrombidus scutellariae v. basoglobrosis Leptotrombidus deliensis Leptotrombidus kitasatoi Leptotrombidus hungdi nov spp. On studying the relation between the species distribution of rodent hostsand chigger mites, it has been demonstrated that the Mus musculusand Apodemus agrarius are the dominant species of rodents in these areas. These rodent hosts were parasited by the chigger mites. The results of thissurvey have shown that the chigger mites N. gallinarum was found onlyin wild rabbites. Generally speaking, N. gallinarum only parasites on hensand birds, but can not be found in wild rabbites. So, that is an interest-ing problem and should be investigated further. The relation between haemorrhagic fever and chigger mites has not beenclear up to now. In this paper although the chigger mites L. palpalis wasthe dominant species of chigger mites on Mus musculus and Apodemusagrarius in Central Shaanxi, which is the endemic area of haemorrhagicferer. The haemorrhagic fever virus has not been isolated from chigger mites,including L. palpalis so far. Therefore, the relation between chigger mitesand haemorrhagic fever is not clear.
