(species Chrysochus cobaltinus), member of the insect subfamily Eumolpinae of the leaf beetle family Chrysomelidae (order Coleoptera). The milkweed beetle is a beautiful dark cobalt blue in colour. It is a close relative of, and a bit shorter than, the dogbane beetle, and it is found throughout the far western United States. The milkweed beetle feeds on dogbane plants.
MILKWEED BEETLE
Meaning of MILKWEED BEETLE in English
Britannica English vocabulary. Английский словарь Британика. 2012