
31/05/2025
Meet the Blade of the Tropics — Prosopocoilus reni
aka the Hainan Reni’s Stag Beetle 🪲
Straight outta the rainforest of Hainan Island, this rare stag beetle isn’t just another pretty bug with big jaws — it’s got saws. Literally. Those jagged mandibles? Built-in power tools.🪚
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Features: Medium-sized stag beetle with saw-like elongated mandibles, glossy dark brown to reddish-black body. Males have distinct serrated jaws. A lesser-known gem for collectors who love island species.
Size: 35mm ~ 60mm
Adult life span once active: ~3 to 6 months in the wild; can live longer under captive care.
From larva to adult: 10 to 12 months
Temperament: 72–79°F (22–26°C)
Diet: Beetle jelly or fermented tree sap (in the wild)
Difficulty: ★☆☆☆☆ — Beginner-friendly, especially for those interested in rare Southeast Asian species.