Neolycaena davidi Neolycaena davidi is a small butterfly found in the East Palearctic that belongs to the lycaenids or blues family.Description from Seitzdavidi Oberth. has on the underside broader and more dispersed white spots, which are not accompanied by distinct dark dots as in nymotypical fengstroemi North China and Mongolia.BiologyThe larva feeds on Caragana microphylla, C. pygmaea, ''C. spinosa''EtymologyThe name honours Armand David.