chalkhill blue
/ˈtʃɔːkhɪl/noun
1- a European blue butterfly of calcareous grassland, of which the male is silvery-blue with blackish markings and the female is brown欧洲蓝蝴蝶, 格子边灰蝶。
1.1
- Lysandra coridon, family Lycaenidae.拉丁名Lysandra coridon, 灰蝶科。