Lysandra coridon on dandelion in glass cloche, Eurasia

Rarity and Value
Lysandra coridon, commonly known as the chalkhill blue butterfly, is a delicate species of the family Lycaenidae distributed across temperate regions of Eurasia. This butterfly is particularly recognized for the striking iridescent blue coloration of the males, produced by microscopic structural scales that reflect light, while females display more subdued brown coloration with orange marginal markings. The species inhabits dry grasslands and calcareous environments, where its populations are often localized and sensitive to habitat change. Due to its fragile wing structure, specialized habitat requirements, and vivid coloration, well-preserved specimens are highly valued by collectors and researchers studying butterfly ecology, structural coloration, and evolutionary adaptation.

Discovery
Lysandra coridon has long attracted scientific attention because of its distinct sexual dimorphism and highly specialized ecological relationships. The species is closely associated with leguminous host plants on which larvae develop, and the caterpillars often maintain symbiotic interactions with ants during early growth stages. Adult butterflies are diurnal and typically fly in open grasslands during warm summer periods, feeding primarily on nectar-rich flowering plants. Researchers locate these butterflies by observing their low, fluttering flight and congregation around host vegetation. Specimens from Russian populations contribute valuable information regarding geographic variation, climate adaptation, and the biodiversity of temperate Eurasian Lepidoptera.

Preservation
This Lysandra coridon specimen has been expertly preserved together with a dandelion structure inside a glass cloche, maintaining the butterfly’s delicate anatomy and natural coloration in exceptional condition. The preservation process protects the microscopic wing scales, fine venation, segmented antennae, and overall body morphology from environmental deterioration. Particular attention has been given to preserving the reflective blue structural coloration and symmetrical wing positioning characteristic of the species. The display serves both scientific and educational purposes, allowing detailed examination of one of Eurasia’s most recognizable lycaenid butterflies while highlighting the intricate biological adaptations of temperate grassland Lepidoptera.