Acta Parasitologica

, Volume 54, Issue 1, pp 53–56 | Cite as

Occurrence of cystacanths of Plagiorhynchus cylindraceus (Acanthocephala) in the terrestrial isopods Trachelipus squamuliger and Armadillidium vulgare (Oniscidea) in Bulgaria

  • Zlatka M. Dimitrova


In total, 2097 individuals of Trachelipus squamuliger and 20 individuals of Armadillidium vulgare from four habitats (three woodland sites and one pasture) in the region of Stara Zagora, Bulgaria, were examined for the presence of cystacanths of Plagiorhynchus cylindraceus, a common acanthocephalan parasite of passerine birds. In T. squamuliger from woodland habitats, cystacanths were found with prevalence 4.0–9.3%, intensity 1–5 (mean 1.22–1.57) and mean abundance 0.057–0.113. No significant differences were observed between infections in males and females of T. squamuliger. None of the T. squamuliger individuals from the pasture examined was infected. Out of 48 infected females of T. squamuliger, only one had developed eggs (in agreement with previous studies revealing the negative effect of the cystacanths on the development of female gonads of woodlice). One individual of A. vulgare was infected with a single cystacanth. The occurrence of P. cylindraceus in T. squamuliger is a new host record.


Plagiorhynchus cylindraceus cystacanths terrestrial isopods prevalence Bulgaria 


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© © Versita Warsaw and Springer-Verlag Berlin Heidelberg 2009

Authors and Affiliations

  1. 1.Department of Biology, Faculty of AgricultureThracian UniversityStara ZagoraBulgaria

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