About Zizeeria knysna (Trimen, 1862)
Zizeeria knysna (Trimen, 1862), commonly known as the dark grass blue or African grass blue, is a species of blue butterfly belonging to the family Lycaenidae. This species is found in Africa, Cyprus, and the Iberian Peninsula. It is sometimes mistakenly referred to by the scientific name Zizeeria lysimon (Hübner). This species name is invalid, because it is preoccupied by Papilio lisimon Stoll, [1790], a butterfly that belongs to the family Riodinidae. Males of this species have a wingspan ranging from 18 to 23 mm, while females have a wingspan ranging from 21 to 26 mm. This butterfly flies for nearly the entire year. Larvae of Zizeeria knysna feed on plants in the genera Medicago, Melilotus, Acanthyllis, and Oxalis, as well as the species Armeria delicatula, Polygonum equisetiforme, and Tribulus terrestris.