Description of the male and the larva of Ixodes ariadnae Hornok, 2014

Hornok, Sándor and Kováts, Dávid and Angyal, Dorottya and Dányi, László and Kovács, Richárd and Kontschán, Jenő (2016) Description of the male and the larva of Ixodes ariadnae Hornok, 2014. TICKS AND TICK-BORNE DISEASES, 7. in press. ISSN 1877-959X

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Abstract

Ixodes ariadnae is a tick species of bats so far reported only in Central Europe, with its description based on the female and nymph. This study describes the male and larva in order to complete the description of the species. Male ticks collected from cave walls in Hungary showed a different morphology from those of I. ves- pertilionis and I. simplex . Molecular analysis of the cytochrome oxidase subunit I (COI) gene of these ticks verified them as conspecific to I. ariadnae . In addition, a larva of I. ariadnae was removed from a Daubenton’s bat ( Myotis daubentonii Kuhl, 1817). The male of I. ariadnae is characterized by long legs (7–8 mm; I. vespertilionis : 8–10 mm; I. simplex : 2–2.2 mm), relatively short palpal setae (30–100 � m; I. vespertilionis : 100–200 � m; I. simplex : 20–50 � m) and straight lateral edge of palps, the genital aperture (enclosed by a line of sclerotization) situated anteriorly to second intercoxal space and rounded coxae. The larva of I. ariadnae has long legs (2–2.2 mm; I. vespertilionis : 1.6–1.8 mm; I. simplex : 1 mm), broad palps (length × width: 200 × 90 � m; I. vespertilionis : 200 × 70 � m; I. simplex : 140 × 60 � m), pentagonal and posteriorly reverse bell-shaped scutum. These features allow to distinguish the male and the larva of I. ariadnae from those of I. vespertilionis (of which the male has longer palpal setae and curved lateral edge of palps, the genital aperture is situated posterior to the second intercoxal space, and the second coxae are squared; the larva of I. vespertilionis has narrower palps and posteriorly triangular scutum) and I. simplex (of which the male and the larva have considerably shorter legs, palps).

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