giant stag beetle; Dorcus hopei
Refers specifically to the species Dorcus hopei, a large stag beetle native to East Asia. Often kept as a pet in Japan.
In summer, I go to the mountains to look for giant stag beetles.
He is raising giant stag beetle larvae.
Katakana spelling is standard for this beetle name; usually written in kana.
Kanji spelling is rare and mainly found in older or specialized texts; the katakana form is strongly preferred.
From 大 (おお, 'large') + クワガタ (stag beetle). The name reflects its size compared to other stag beetles.