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Dorcus grandis formosanus
A close relative of Japanese giant stag from China/Taiwan. Can grow large, targeting over 80mm.
Dorcus hopei hopei is the nominate subspecies of the giant stag beetle complex, native to China and Taiwan. It closely resembles the Japanese giant stag beetle (D. h. binodulosus) in body form and coloration, with adults reaching 40–85 mm in body length; exceptional specimens can exceed 80 mm. The body is a deep glossy black with thick, powerful mandibles. Husbandry is virtually identical to that of the Japanese giant stag: medium enclosure with ventilated lid, hardwood egg-laying logs, and fungal substrate bottles for larval rearing to maximize size. Recommended temperature is 20–26°C, and adults enjoy a lifespan of 1–3 years—unusually long for stag beetles. Adults are fed beetle jelly. The combination of familiar care requirements, long adult lifespan, and the potential to produce 80 mm-plus specimens makes D. h. hopei a highly popular species for enthusiasts targeting large specimens.
Origin
China and Taiwan
Lifespan
Adult 1-3 years
Size
40-85mm
Temperature
20〜28℃
Humidity
60〜80%
Insect jelly
国産オオクワガタとほぼ同じ飼育方法
Captive record (♂)
84.3 mm
Wild record (♂)
78.3 mm
Record source: BE-KUWA 2025年度版(grandis タイワンオオ 飼育84.3mm 三枝孝敏 2012 / 野外78.3mm)
Notable localities
タイワンオオクワガタ(Dorcus grandis formosanus、グランディスの台湾亜種)。飼育レコードは BE-KUWA(むし社)のコンテストで毎年更新される。産地・累代(CBF/WF/WD)・サイズで個体価値が大きく変動する。
Generation codes
Sources: BE-KUWA 認定飼育レコード(むし社、2025年度版)
Edited & verified by: br-choku editorial team
The taxonomic, regulatory, and husbandry data on this page are compiled and verified against the authoritative primary sources below.
Accepted name: Dorcus grandis formosanus Didier, 1926
Authority databases: GBIF
Nomenclature follows global taxonomic authority databases.
Plant Protection Act: コガネムシ上科(カブトムシ・クワガタムシ・ハナムグリ等)の生きた個体を輸入する際は、外来生物法に基づき輸出国政府機関等が発行する種類名証明書の添付が必要(輸入港は成田・中部・関西・福岡・鹿児島の各空港に限定)。本種自体は特定外来生物ではなく、証明書の添付により輸入可能。
Sources: 環境省 外来生物法「コガネムシ上科に含まれる生きた昆虫を輸入される方へ」 / CITES 附属書(checklist.cites.org)
Regulations may change. Always verify the latest information with the relevant authorities.
Find listings for this species
大型化しやすく80mm超えも
菌糸ビンでの飼育が基本
温度は20〜25℃が適温
寿命は比較的長い
Intermediate. This is an intermediate-level species. Some prior experience and knowledge of environmental management are recommended.
The ideal temperature for Hopei Stag Beetle is 20〜28℃. Recommended humidity is 60〜80%. Avoid sudden temperature changes and maintain a stable environment.
The average lifespan of Hopei Stag Beetle is Adult 1-3 years. With proper care and nutrition, they can live a long and healthy life.
Hopei Stag Beetle typically reaches 40-85mm as an adult. Size may vary depending on care conditions and individual genetics.
Hopei Stag Beetle feeds on: Insect jelly. Aim for a balanced diet with appropriate feeding frequency.
The price of Hopei Stag Beetle varies significantly depending on morph, size, and lineage. Check our market price page for the latest pricing information.
Last updated: June 23, 2026