NEW FINDINGS OF CHIGGER MITES (ACARIFORMES: TROMBICULIDAE) IN THE REPUBLIC OF KARELIA AND THE ARKHANGELSK REGION

The article provides information on the occurrence of chigger mites (Acariformes, Trombiculidae), obtained as a result of long-term studies of the ectoparasite fauna of small mammals from 1992 to 2018 in Karelia, Murmansk Region (2015), Arkhangelsk Region (2007) and Finland (1999, 2007). A total of...

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Bibliographic Details
Published in:Proceedings of the Karelian Research Centre of the Russian Academy of Sciences
Main Authors: Lyubov Bespyatova, Sergey Bugmyrin
Format: Article in Journal/Newspaper
Language:English
Russian
Published: Karelian Research Centre of the Russian Academy of Sciences 2019
Subjects:
hirsutiella zachvatkini
neotrombicula uliginosa
small mammals
chiggers
northwest russia
Science
Q
Murmansk
Arkhangelsk
karelia*
Northwest Russia
Republic of Karelia
Online Access:https://doi.org/10.17076/bg1076
https://doaj.org/article/09fcb084f0c3446a82a5292b9f720076
Description
Summary:The article provides information on the occurrence of chigger mites (Acariformes, Trombiculidae), obtained as a result of long-term studies of the ectoparasite fauna of small mammals from 1992 to 2018 in Karelia, Murmansk Region (2015), Arkhangelsk Region (2007) and Finland (1999, 2007). A total of 6154 specimens of small mammals of the orders Rodentia (Myodes glareolus, M. rutilus, M. rufocanus, Microtus agrestis, M. oeconomus, Arvicola terrestris, Sicista betulina, Micromys minutus, Apodemus agrarius, A. flavicollis) and Eulipotyphla (Sorex araneus, S. caecutiens, S. isodon, S. minutus, Neomys fodiens) were examined and 878 chiggers were collected. Hirsutiella zachvatkini (Schluger 1948) and Neotrombicula (Digenualea) uliginosa Kudryashova 1998 were found. Their prevalences were 0.84 % and 0.16 %, respectively. H. zachvatkini (parasite associated with the bank vole) was found only in southern Karelia and south-western Arkhangelsk Region. The northernmost record of this species in Karelia comes from the Kizhi Archipelago (Medvezhjegorsky District), where after long-term monitoring and with a large number of host individuals examined, chiggers were found only on Malyi Lelikovsky Island (N61.989°; E35.15°). A high relative abundance of H. zachvatkini was observed in the south-west of Karelia, in the Lahdenpohsky District. The second species, N. uliginosa, was noted only in the north-west of Karelia (Voknavolok, N65.046857°; E30.603793°) on Microtus agrestis, Myodes glareolus and Neomys fodiens. Its prevalence and abundance were 12.3 % and 0.86 spm., respectively. This paper is the first report on the fauna of chiggers on small mammals in Karelia. Further focused studies of this group of arthropods may expand the list of species.

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