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Rainbow Stag Beetle (Color Morphs)
BeginnerPhalacrognathus muelleri var.
Color morphs of Rainbow Stag Beetle. Green, blue, red, purple, black — various color forms created through selective breeding. Extremely collectible.
Difficulty
Beginner
Temperature
20〜25℃
Lifespan
Adult 1-2 years / Larva 6-12 months
Size
25-65mm
Humidity
60〜80%
Diet
Jelly (adult) / Fungus bottle or fermented mat (larva)
About
The color morphs of the rainbow stag beetle refer to color variants of Phalacrognathus muelleri, native to Australia and New Guinea. The species naturally shows iridescent elytra varying among red, green, blue, and black, and selective breeding has produced lineages emphasizing particular hues such as green, blue, red, or purple, making them highly collectible. Care follows the base species, using a small to medium enclosure with fine fermented substrate. Adults are fed insect jelly, and oviposition occurs in the substrate. Relatively easy to keep, it is a popular stag beetle whose vivid colors can be enjoyed for a long time.
Source: Wikipedia (CC BY-SA 4.0)
Lifespan of the Rainbow Stag Beetle (Color Morphs)
The Rainbow Stag Beetle (Color Morphs) lives Adult 1-2 years / Larva 6-12 months.
Size of the Rainbow Stag Beetle (Color Morphs)
The Rainbow Stag Beetle (Color Morphs) grows to 25-65mm.
Temperature & humidity for the Rainbow Stag Beetle (Color Morphs)
The ideal temperature for the Rainbow Stag Beetle (Color Morphs) is 20〜25℃.
Basic Info
Origin
northern Australia and New Guinea
Lifespan
Adult 1-2 years / Larva 6-12 months
Size
Breeding Records & Localities
Notable localities
Australia (Northern Queensland)New Guinea
A color variation of the rainbow stag beetle (Phalacrognathus muelleri). Body coloration varies in blue/green/red tones depending on individual, locality, and generation. For size records, refer to the basic species page.
Generation codes
- WD
- Wild-caught
- WF1
- Offspring of a wild-caught female
- F1〜
- Captive generations (same locality)
- CBF1
- Cross-locality captive-bred (reset)
Sources: BE-KUWA Certified Breeding Records (Mushi-sha, FY2025 edition, JA)
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.
Taxonomy & Authority
Accepted name: Phalacrognathus muelleri var. (MacLeay, 1885)
Synonyms: Lamprima muelleri MacLeay, 1885, Phalacrognathus muelleri fuscomicans Kolbe, 1908, Phalacrognathus westwoodi Shipp, 1893
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.
Rainbow Stag Beetle (Color Morphs) Listings
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