Phalacrognathus muelleri - Rainbow stag beetle larvae 3rd Instar

Phalacrognathus muelleri – Rainbow Stag Beetle Larvae (UK-Bred)
One of the most spectacular beetles in the world, the Rainbow Stag Beetle (Phalacrognathus muelleri) is famous for its metallic green/red/purplue adults. These UK-bred larvae give you the opportunity to raise this stunning species from the very beginning, watching them grow and eventually pupate into truly jewel-like beetles.
 
What makes them special
Incredible adults: Known for their vivid, metallic colours and impressive mandibles.
Rewarding to rear: Experience the complete beetle life cycle, from larvae through pupation to adult emergence.
Captive-bred: UK-reared stock means hardy, well-fed larvae with lower risk than wild imports.
Care & housing
Substrate: Keep in a deep container of nutrient-rich, flake soil — this is both their food and burrowing medium.
Housing: Each larva should be kept individually, to avoid canibalism. 
Conditions: Maintain stable, warm temperatures (around 22–25°C) with consistent moisture, but avoid waterlogging.
Feeding: Larvae feed on the substrate itself, which should be topped up or replaced as needed to maintain nutrition.
Why buy from us
UK-bred larvae raised on high-quality substrate.
Healthy, well-grown larvae already established on flake soil. 
Support and care advice to help you successfully raise them through to their stunning adult form.