Source: Wikimedia Commons
Canaliculatus Long-jawed Stag Beetle
IntermediateCyclommatus canaliculatus
A Cyclommatus native to Sumatra and its surroundings, divided into five subspecies by locality. The grooved sculpture of the elytra gives the species its name, and males draw out long, slender mandibles. The captive record is 58.3 mm.
Difficulty
Intermediate
Temperature
20〜28℃
Lifespan
Adults 4-6 months (typical for the genus)
Size
Males 23.6-58.3 mm (nominate subspecies; captive record 58.3 mm, wild record 56.2 mm)
Humidity
60〜80%
Diet
Beetle jelly (in the wild it visits flowers of herbaceous plants)
About
The canaliculatus long-jawed stag (Cyclommatus canaliculatus) was described in 1891, and the nominate subspecies lives on Sumatra and the islands around it. Five subspecies are recognised: consanguineus in northern Kalimantan, freygesseneri on Java, infans on Sulawesi and ramlii on Kalimantan. Of the 608 specimen records in GBIF, 225 come from Indonesia and 113 from Malaysia. BE-KUWA gives the nominate subspecies a captive record of 58.3 mm against a wild record of 56.2 mm, and files separate lines for Java at 61.4 mm, southern Borneo at 56.5 mm and northern Borneo at 52.2 mm. The smallest certified beetle is 23.6 mm, and in small males the mandibles are short and straight. Care follows the genus, with a firmly packed set of soft log and fine fermented substrate.
Source: Wikipedia (CC BY-SA 4.0)
Lifespan of the Canaliculatus Long-jawed Stag Beetle
The Canaliculatus Long-jawed Stag Beetle lives Adults 4-6 months (typical for the genus).
Size of the Canaliculatus Long-jawed Stag Beetle
The Canaliculatus Long-jawed Stag Beetle grows to Males 23.6-58.3 mm (nominate subspecies; captive record 58.3 mm, wild record 56.2 mm).
Basic Info
Origin
Sumatra and its surroundings (nominate subspecies); other subspecies occur on Java, Kalimantan and Sulawesi
Lifespan
Adults 4-6 months (typical for the genus)
Size
Males 23.6-58.3 mm (nominate subspecies; captive record 58.3 mm, wild record 56.2 mm)
Care Specifications
Breeding Records & Localities
Captive record (♂)
58.3 mm
Wild record (♂)
56.2 mm
Record source: BE-KUWA 2025 edition (Canaliculatus, nominate subspecies: captive 58.3 mm, 佐々木愛貴 2025 / wild 56.2 mm; projected maximum 64 mm. Java: captive 61.4 mm, わたくわ 2025. Southern Borneo: 56.5 mm, 石塚利行 2014. Northern Borneo: 52.2 mm, 謝孟廷 2025. Smallest record 23.6 mm, 新井大樹 2021)
Notable localities
Sumatra (Indonesia)Java (Indonesia)Northern and southern Kalimantan (Indonesia and Malaysia)Sulawesi (Indonesia)
Regional subspecies
- Cyclommatus canaliculatus canaliculatus — Sumatra and surrounding islands
- Cyclommatus canaliculatus consanguineus — Northern Kalimantan
- Cyclommatus canaliculatus freygesseneri — Java
- Cyclommatus canaliculatus infans — Sulawesi
- Cyclommatus canaliculatus ramlii — Kalimantan
BE-KUWA files four lines by locality, and the largest is not the nominate subspecies but the Javan population at 61.4 mm. Because sources differ on which subspecies name goes with which locality, do not read the locality label on a record as a subspecies name.
References & Sources
Edited & verified by: BreederDirect editorial team
The taxonomic, regulatory, and husbandry data on this page are compiled and verified against the authoritative primary sources below.
Primary sources
- Wikipedia
- Ministry of the Environment, Invasive Species Act: "Guidance for Those Importing Live Insects in Scarabaeoidea"
- CITES Appendix (checklist.cites.org)
- BEETLE SCHOOL - Rearing Cyclommatus (egg-laying set, larval rearing, larval period, adult lifespan, breeding cautions)
- Ben's Beetle Breeding Pages - Cyclommatus canaliculatus canaliculatus (distribution)
- BE-KUWA Certified Breeding Records (Mushi-sha, FY2025 edition PDF, JA)
- GBIF
Taxonomy & Authority
Accepted name: Cyclommatus canaliculatus Ritsema, 1891
Authority databases: GBIF
Nomenclature follows global taxonomic authority databases.
Regulations & Conservation Status
Not CITES-listed
Plant Protection Act: When importing live specimens of Scarabaeoidea (including rhinoceros beetles, stag beetles, flower beetles, etc.), a species identification certificate issued by the exporting country government agency or equivalent must be attached in accordance with the Invasive Species Act (import ports are limited to Narita, Chubu, Kansai, Fukuoka, and Kagoshima airports). This species itself is not a designated invasive species, and import is possible upon submission of the certificate.
Sources: Ministry of the Environment, Invasive Species Act: "Guidance for Those Importing Live Insects in Scarabaeoidea" / CITES Appendix (checklist.cites.org)
Regulations may change. Always verify the latest information with the relevant authorities.
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