Comprehensive guide to stag beetle species: Japanese natives like Dorcus hopei and Lucanus maculosus, plus popular imports like Giraffa, Palawan, and Caucasus stag beetles.
Key Takeaways
Comprehensive guide to stag beetle species: Japanese natives like Dorcus hopei and Lucanus maculosus, plus popular imports like Giraffa, Palawan, and Caucasus stag beetles.
Stag beetles are insects belonging to the order Coleoptera, family Lucanidae, with over 1,200 species worldwide. Over 30 species inhabit Japan, with different species distributed across different regions. The prominent mandibles (jaws) of males are characteristic, with their shape and size varying greatly by species.
In the world of insect keeping, stag beetles are popular alongside rhinoceros beetles, with many enthusiasts having strong preferences for specific individuals and sizes. While domestic Japanese species are easy to care for due to their adaptation to Japan's climate, large and colorful foreign species are also gaining popularity.
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Giant Stag Beetle (Dorcus hopei binodulosus) Japan's largest stag beetle, with males reaching over 80mm at maximum. Once called the "phantom insect" due to its rarity, it is now more readily available due to widespread artificial breeding. Care is relatively easy, with larvae reared in breeding mats or fungus bottles. Temperature control (20-25°C) and fermented substrate are the keys to raising large individuals.
Flat-horned Stag Beetle (Dorcus titanus pilifer) Characterized by a flattened body, with well-developed mandibles in males. Found throughout Japan, with individuals from remote islands like Tsushima and Iki being particularly large and popular. They have a temperament and care must be taken to avoid being pinched by keepers, but breeding is relatively easy.
Mountain Stag Beetle (Lucanus maculifemoratus) Attractive due to their beautiful golden coloration and distinctive head shape. They prefer high altitudes and low temperatures, making long-term care at low elevations difficult. Adult lifespan is short (2-3 months), so temperature control is especially important for breeding purposes.
Saw Stag Beetle (Prosopocoilus inclinatus) Japan's most common stag beetle. Often collected in mountains and is an approachable species. Long adult lifespan (1-2 years), making it ideal as a beginner species for keeping.
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Rainbow Stag Beetle (Phalacrognathus muelleri) Native to Australia. As the name suggests, their beautiful iridescent appearance is their greatest charm. Care is relatively easy, with breeding possible at 20-25°C using substrate and wood for egg-laying. Their temperament is mild, making them suitable for beginners.
Palawan Giant Flat-horned Stag Beetle (Dorcus titanus palawanicus) From Palawan Island, Philippines. The world's largest flat-horned stag beetle, reaching over 110mm at maximum. Caution is needed due to their large size and strength, but their presence is impressive.
Giraffe Saw Stag Beetle (Prosopocoilus giraffa) Holds a Guinness record as the world's longest stag beetle. Characterized by elongated mandibles, reaching over 110mm at maximum. Primarily sourced from Indonesia and Malaysia.
Caucasus Rhinoceros Beetle (Chalcosoma caucasus) ※Not a stag beetle, but a related species Characterized by three-pronged horns.
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| Species | Difficulty | Adult Lifespan | Size (Male Max) | Estimated Cost (Pair) | |---|---|---|---|---| | Giant Stag Beetle (Domestic) | Easy | 2-5 years | Over 80mm | ¥3,000-10,000 | | Flat-horned Stag Beetle (Domestic) | Easy-Medium | 2-4 years | Over 70mm | ¥2,000-8,000 | | Mountain Stag Beetle (Domestic) | Difficult | 2-3 months | Over 80mm | ¥3,000-15,000 | | Rainbow Stag Beetle | Easy | 1-2 years | Approximately 70mm | ¥2,000-6,000 | | Palawan Giant Flat-horned Stag Beetle | Medium | 2-3 years | Over 110mm | ¥5,000-20,000 |
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On br-choku, many breeders specializing in stag beetles list both domestic and foreign species. Experienced breeders answer specific questions such as "I'm keeping stag beetles for the first time—what do you recommend?" and "I'm aiming for Guinness size—what bloodline should I look for?" Individuals difficult to find in shops—such as large specimens, rare locality stocks, and captive-bred bloodline individuals—can be obtained directly through br-choku.
Find Insects listings related to this article on BreederDirect. Buy directly from verified breeders.
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