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Hexarthrius parryi
A large two-pronged stag beetle distributed in India, Myanmar, Thailand, and nearby areas. Features long bifurcated mandibles and is one of the largest species in its genus. The body luster and mandible shape are highly valued by enthusiasts.
Hexarthrius parryi is a large fork-jawed stag beetle distributed across India, Myanmar, and Thailand. Its long, forked mandibles are its hallmark, and it is known to grow particularly large within the genus. The glossy body and mandible shape are admired by enthusiasts. Husbandry uses a small to medium enclosure with oviposition logs and fermented substrate. Adults are fed insect jelly, and larvae reared in fungal substrate bottles can yield large individuals. Because the mandibles are long and powerful, careful handling is needed. Combining presence and beauty, it is popular in breeding.
Source: Wikipedia (CC BY-SA 4.0)
Origin
India, Myanmar, and Thailand
Lifespan
Adult 6mo-1yr
Size
40-100mm
Temperature
20〜27℃
Humidity
60〜80%
Tree sap, beetle jelly
Maintain 20-27°C
Sources: Wikipedia フタマタクワガタ属
Breeding season: Early summer to summer (adult active season)
Breeding notes
Females lay eggs in fermented wood or substrate; hatched larvae are reared in fermented mat or fungal (mycelium) bottles. After eclosion, adults require several months of dormancy before they are ready to breed.
Breeding requires planning, proper husbandry, and responsibility. These figures are general guidelines.
Sources: Wikipedia フタマタクワガタ属
Captive record (♂)
92.1 mm
Wild record (♂)
96.1 mm
Record source: BE-KUWA 2025年度版(パリー paradoxus 飼育92.1mm 京四郎 2017 / 野外96.1mm)
Notable localities
Regional subspecies
二又に分かれた大顎が特徴のフタマタクワガタ。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: Hexarthrius parryi Hope, 1842
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
Raise in fermented mat or fungal bottle
Primarily lays in breeding logs
Popular species that grows particularly large among two-pronged types
Intermediate. This is an intermediate-level species. Some prior experience and knowledge of environmental management are recommended.
The ideal temperature for Parryi Stag Beetle is 20〜27℃. Recommended humidity is 60〜80%. Avoid sudden temperature changes and maintain a stable environment.
The average lifespan of Parryi Stag Beetle is Adult 6mo-1yr. With proper care and nutrition, they can live a long and healthy life.
Parryi Stag Beetle typically reaches 40-100mm as an adult. Size may vary depending on care conditions and individual genetics.
Parryi Stag Beetle feeds on: Tree sap, beetle jelly. Aim for a balanced diet with appropriate feeding frequency.
The price of Parryi Stag Beetle varies significantly depending on morph, size, and lineage. Check our market price page for the latest pricing information.
Last updated: July 3, 2026