Journal of the Acarological Society of Japan

A new species of water mite genus Wandesia is described on the basis of the specimen collected at the Arctic coast in the eastern Siberia, Russia. The new species is distinguished from the congeners in having three setae on the first coxa, one seta on the fourth coxa, and two fine setae on the third palpal segment. This is the first record of the genus Wandesia from the sea coast.

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Following five cases of human infestation by Amblyomma testudinarium (Acari: Ixodidae) are reported in Japan. Case 1: On June, 2003, one nymph infested on the skin surface of the right brachium of a 55-years-old male in Hyogo Prefecture. Case 2: On June, 2009, one nymph infested on the skin surface of the lumbar of a 39-years-old male in Okayama Prefecture. Case 3: On May, 2008, one adult female infested on the skin surface of the thigh of a 1-year-old female in Yamaguchi Prefecture. Case 4: On March, 2009, one nymph infested on the skin surface of the thigh of a 30-years-old female in Fukuoka Prefecture. Case 5: On May, 2007, one nymph infested on the skin surface of the scrotum of a 31-years-old male in Miyazaki Prefecture. The case of human infestation by A. testudinarium is firstly reported in Okayama Prefecture. A retrospective examination found that the DNA of Borrelia, Ehrlichia, Anaplasma, and Rickettsia were not detected from the ticks.

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