New island record and seasonal activity of Eucibdelus (Eucibdelus) ishigakiensis Hayashi, 1997 (Coleoptera, Staphylinidae, Staphylininae) from Iriomote Island, southern Japan, including notes on behavior and long-term records by an amateur naturalist

This dataset contains occurrence records of Eucibdelus (Eucibdelus) ishigakiensis Hayashi, 1997 (Coleoptera: Staphylinidae: Staphylininae) from Iriomote Island, Yaeyama Islands, Okinawa, Japan. Specimens were collected by light traps during winter–spring (mid-January to late March) over nearly 20 years by an experienced amateur coleopterist.