Abstract
Ticks were collected at the eastern tip of Long Island from May through October 1971 on 11 mammal and 8 bird host species and by dragging. A total of 3845 ticks of 6 species were taken. Tabulations showing host relations and seasonal distribution are given. Amblyomma americanum (L.) was found to be established in one area. Norway rats appeared to be favorite hosts for larvae and nymphs of Dermacentor variabilis (Say). Heavy infestations of Ixodes muris Bishopp & Smith were found on white-footed mice and on a muskrat. This species also was found on 8 species of birds, including lst-time records on 5 bird species. Adults of Ixodes scapularis Say were prevalent in October and it is concluded that this is a fall-spring species.

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