Dytiscus marginalis

imago
Dytiscus marginalis
Dytiscus marginalis

In Japan, this specie is called; Ezo. This species mainly lives in north Japan ( Ezo means north Japan in an archaic Japanese ). I haven't ever seen wild them once. They lengths 32-36mm( one of biggest in this genus of Japan ) and looks very beautiful under the light. I hope them to breed just next year.

larva
not yet
Dytiscus marginalis
pupa
not yet
Dytiscus marginalis