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1 September 2013 First Description of the Nymph and Larva of Dermacentor raskemensis (Acari: Ixodidae), Parasites of Pikas and Other Small Mammals in Central Asia
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Abstract

Dermacentor raskemensis Pomerantzev, 1946 is one of the rare Asian species in this genus. The immature stages of this species have never been described. Reexamination of D. raskemensis holdings stored in the United States National Tick Collection revealed a collection lot containing reared nymphs and larvae of this species. This collection made it possible for us to find numerous nymphs and larvae of D. raskemensis among previously unidentified material collected in the field. Both immature stages of D. raskemensis are described here for the first time. Nymphs of D. raskemensis can be distinguished from those of other Dermacentor species in the region by small spiracular plate, relatively short and obtuse lateral projections of basis capituli dorsally, relatively short spurs on coxa I and the internal spur is characteristically very broadly rounded at its apex, and very small spur on coxa IV, whereas larvae of D. raskemensis can be distinguished from other Dermacentor by relatively short and obtuse lateral projections of basis capituli, ≈6 denticles in the median files on hypostome, and relatively short, broad, and rounded spur on coxa I. The nymphs and larvae of D. raskemensis studied originate from Afghanistan, India, Iran, and Pakistan, where they were collected from pikas and other small mammals.

© 2013 Entomological Society of America
Dmitry A. Apanaskevich "First Description of the Nymph and Larva of Dermacentor raskemensis (Acari: Ixodidae), Parasites of Pikas and Other Small Mammals in Central Asia," Journal of Medical Entomology 50(5), (1 September 2013). https://doi.org/10.1603/ME13051
Received: 8 March 2013; Accepted: 1 May 2013; Published: 1 September 2013
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