First record of Cacyreus marshalli in Greece, and comments on the potential occurrence of Zizeeria karsandra on the Greek island of Crete (Lepidoptera: Lycaenidae)

A thriving colony of Cacyreus marshalli (Butler, 1898) is reported for the first time from Greece. The butterflies appeared in large numbers in late summer and throughout autumn of 2009 in parkland and gardens in the northern suburbs of Athens. Introduced Pelargonium plants in a particular park were identified as the most probable explanation of this sudden occurrence. Moreover, the authors' persistent, yet unsuccessful efforts to locate Zizeeria karsandra (Moore, 1865) on the island of Crete are discussed.