Madagascar; the type locality is Antsianaka.
Fine-art photographic collection
Agnelius nageli
A flattened Madagascan stag beetle built less like a wrestler and more like a bark-dwelling wedge.
About this species
Madagascan stag beetle
Agnelius nageli(Kriesche, 1926)
Information reviewed15 July 2026
Agnelius nageli is an endemic Madagascan stag beetle whose compact, flattened body contrasts sharply with the towering jaws of familiar stag beetles. A modern revision shows a beetle adapted to tight spaces, with toothed forelegs and unusually little external difference between the sexes.
Taxonomy
Animalia · Arthropoda · Insecta · Coleoptera · Lucanidae · Lucaninae · Figulini · Agnelius
Accepted · checked 2026-07-15
Madagascar (type locality: Antsianaka)Known from Madagascar; the marker represents the historical type-locality region, not a complete occurrence map.
Species-specific habitat information was not detailed in the cited revision.
Solitary.
What makes this species remarkable?
Its body is strongly flattened from above to below, allowing the beetle to press into narrow spaces beneath loose bark and decaying wood.
The front tibiae carry a row of saw-like teeth that turns each foreleg into an efficient digging and anchoring tool.
Male and female bodies are remarkably alike for a stag beetle, lacking the spectacular male jaw exaggeration seen in many larger relatives.