A new subgenus of hard ticks, Filippoviella n. subgen. (Acari: Ixodidae) comprising Ixodes trianguliceps Birula, 1895 and I. ghilarovi Filippova & Panova, 1988, parasites of small mammals in Europe and Asia
Author:
APANASKEVICH DMITRY A.ORCID, GREIMAN STEPHEN E.ORCID, FEDOROV DENIS S.ORCID, AHMED ROKEYAORCID, BARKER STEPHEN C.ORCID
Abstract
We establish a new subgenus, Filippoviella n. subgen. (Acari: Ixodidae) based on two species formerly assigned to the subgenus Exopalpiger Schulze, 1935 in the genus Ixodes Latreille, 1795. Ixodes (Filippoviella) trianguliceps Birula, 1895 is a tick species broadly distributed throughout Europe and western Siberia, the females, nymphs and larvae of which mostly feed on small mammals such as shrews and rodents. Ixodes (Filippoviella) ghilarovi Filippova & Panova, 1988 is found in the Caucasus region on rodents and shrews. The type species of this new subgenus is Ixodes trianguliceps. The major morphological differences allowing discrimination of the two species of Filippoviella n. subgen from members of the subgenus Exopalpiger are the shape of the idiosoma, shape of the basis capituli, development of palpal segment I, the suture between palpal segments II and III, development of syncoxae and chaetotaxy. We sequenced the entire mitochondrial genome of I. trianguliceps; according to our phylogeny from 10 protein-coding mitochondrial genes of 17 of the 23 Ixodes subgenera (34 spp.), I. (Filippoviella) trianguliceps is basal to the “other Ixodes” and polyphyletic with I. (Exopalpiger) fecialis Warburton & Nuttall, 1909.
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