Inflated-elytra
Guides
Cysteodemus armatus
inflated beetle, inflated blister beetle
Cysteodemus armatus is a flightless blister beetle in the family Meloidae, distinguished by its dramatically inflated elytra that form a rounded, dome-like covering. The species occurs in arid and semi-arid regions of southwestern North America and Central America. Its fused wing covers render it incapable of flight, an unusual trait among beetles. The beetle's distinctive appearance and defensive chemistry align with typical meloid characteristics, though specific ecological details remain poorly documented.