Diacanthous triundulatus

Members of the genus Diacanthous can be recognized by their strongly serrate antennae and the presence of paired, spine-like projections on the pronotum. The specific epithet 'triundulatus' suggests three wavy or undulating markings or structures, though the exact referent requires examination of type material. Separation from other Diacanthous species requires detailed comparison of pronotal armature and elytral sculpture.

Observations recorded from Mexico.

As with other Elateridae, adults possess the ability to perform a 'clicking' jump using a prosternal process that engages with a mesosternal groove, allowing them to right themselves when flipped or to escape predators. Whether this species exhibits additional behavioral specializations is unknown.

• Other Diacanthous speciesShare the distinctive pronotal spines and serrate antennae that define the genus; require careful examination of spine number, arrangement, and body proportions for differentiation.
• Other Elateridae with pronotal armatureVarious click beetle genera (e.g., some Ampedus, Agriotes) possess pronotal projections or spines, but differ in antennal structure, body form, and the specific morphology of the prosternal process.

• beetle
• click beetle
• rare
• data deficient
• Mexico

• BugGuide
• iNaturalist taxon