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Allotopus moellenkampi moseri
A golden-gleaming stag beetle from Borneo. The Moseri subspecies of the golden stag has particularly beautiful gold body coloration, earning high popularity for its rarity and beauty. Relatively difficult to keep, suitable for advanced keepers.
Allotopus moellenkampi moseri is a subspecies of the golden stag beetle Allotopus moellenkampi, found in highland areas of Borneo and nearby regions. Its hallmark is a brilliant golden coloration that appears gold under dry conditions and darkens when humidity is high. Males typically reach about 40–75 mm. In captivity a small to medium enclosure with footing to prevent toppling is used, and adults are fed insect jelly. Fine-particle fermented substrate is used for oviposition, and larvae are reared in fungal substrate bottles or high-quality substrate. Requiring careful temperature and humidity control, it is a beautiful species suited to more experienced keepers.
Source: Wikipedia (CC BY-SA 4.0)
Origin
highland regions of Borneo and Southeast Asia
Lifespan
Adult 6mo-1yr
Size
25-65mm
Temperature
20〜25℃
Humidity
60〜80%
Tree sap, beetle jelly
Maintain at lower 20-25°C
Captive record (♂)
80.6 mm
Wild record (♂)
80.8 mm
Record source: BE-KUWA 2025年度版(モセリ 飼育80.6mm まー 2022 / 野外80.8mm)
Notable localities
黄金色に輝くオウゴンオニクワガタの一亜種(moseri)。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: Allotopus moellenkampi moseri (Fruhstorfer, 1894)
Synonyms: Prosopocoelus moellenkampi Fruhstorfer, 1894
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
Fungal bottle rearing is standard
Maintain moderate humidity (60-70%)
Strict temperature management needed for this delicate species
Advanced. This is an advanced-level species. It requires specialized equipment and advanced husbandry skills with precise environmental control.
The ideal temperature for Moseri Golden Stag is 20〜25℃. Recommended humidity is 60〜80%. Avoid sudden temperature changes and maintain a stable environment.
The average lifespan of Moseri Golden Stag is Adult 6mo-1yr. With proper care and nutrition, they can live a long and healthy life.
Moseri Golden Stag typically reaches 25-65mm as an adult. Size may vary depending on care conditions and individual genetics.
Moseri Golden Stag feeds on: Tree sap, beetle jelly. Aim for a balanced diet with appropriate feeding frequency.
The price of Moseri Golden Stag varies significantly depending on morph, size, and lineage. Check our market price page for the latest pricing information.
Last updated: June 23, 2026