RESUMO
Nine species-level taxa of bat ectoparasites, three chigger mites (Trombiculidae), three hard (Ixodidae), and one soft tick (Argasidae) species, as well as two bug (Cimicidae) species from nine bat species hosts were detected in the Eastern Palaearctic. Trombiculid larvae of Leptotrombidium schlugerae, Leptotrombidium album, and Ascoschoengastia latyshevi were first recorded on bats in the temperate zone of eastern Russia. L. schlugerae was more abundant than A. latyshevi in the same study sites in Eastern Siberia, and the main hosts of both chigger species were Plecotus ognevi and Eptesicus nilssonii. Ixodid ticks Dermacentor marginatus, Ixodes simplex, and Ixodes sp. were sampled from bats in Kazakhstan, the Far East, and Eastern Siberia, respectively. Phylogenetic analysis based on Cox1, 16S rDNA, and ITS2 sequences of I. simplex showed that the specimens from the Far East grouped into a clade distributed in the Eastern Palaearctic and India. In turn, the specimen of Ixodes sp. from Eastern Siberia was most closely related to Ixodes soricis and Ixodes angustus with p-distance of 9.8-10.7% (Cox1), suggesting that this tick probably belongs to a new species. Argas vespertilionis larvae were collected from three widespread bat species in Kazakhstan. Two bug species, Cimex pipistrelli and Cimex aff. lectularius, were recorded in the Far East and Eastern Siberia, respectively. Specimens from Transbaikalia were morphologically identified as Cimex lectularius. However, they differed from the latter by 12.5-12.9% of Cox1 sequences, indicating that C. aff. lectularius may be a new species.
Assuntos
Argasidae , Percevejos-de-Cama , Quirópteros , Ixodes , Ixodidae , Trombiculidae , Animais , Filogenia , LarvaRESUMO
The DNA-barcoding and chromosomal study of the eastern water bat, Myotis petax Hollister, 1912, from the earlier unexplored localities in the Russian Far East are carried out. The COI barcoding obtained for 18 from a total of 19 individuals captured in five localities in the Russian Far East showed the low nucleotide variability with the prevalence of the central, the most abundant haplotype. The chromosomal characteristics of eight M. petax specimens (2n = 44, NFa = 52) in the Russian Far East are clarified. The number and localization of NOR in karyotype of M. petax is described at the first time and differ from distributional patterns of NOR in the sibling species M. daubentonii Kuhl, 1819 that can be used as diagnostic feature. The considerable intraspecific variability in the distribution of heterochromatin material revealed is not typical of the genus Myotis, but it has been found in other species of the family Vespertilionidae.
RESUMO
Myotis bucharensis is one of the least studied Palaearctic bat species, known from only three localities in Tajikistan and Uzbekistan and not reported since 1965. In autumn 2019, a male Myotis captured in Zerafshan river basin in Tajikistan was later identified as M. bucharensis based on tail and tibia proportions and strongly displacement of posterior small premolars. The identification was then confirmed by morphometric analyses supporting that M. bucharensis is specifically different but represents a part of the Myotis frater complex. Analyses of one mitochondrial (cyt b) and one nuclear gene (RAG2) were performed for the first time for M. bucharensis. According to these genetic results, this form is indeed a member of the «daubentonii¼ clade, which includes all known frater-like Myotis, and most likely represents a sister species to M. longicaudatus. Record of the alive specimen M. bucharensis has valuable implication for bat conservation in Tajikistan.