New records of Selysiothemis nigra (Vander Linden, 1825) and Erythromma viridulum (Charpentier, 1840) from Cephalonia Island (Greece) with an updated checklist of the odonatofauna of the island

Selysiothemis nigra (Vander Linden, 1825) and Erythromma viridulum (Charpentier, 1840) are recorded from the Greek island of Cephalonia for the first time, on the basis of photographic data. With the present note we also give an updated checklist of the odonatofauna for the island.