Cerophytum

Distinguished from Elateridae (true click beetles) by thoracic morphology: less specialized for jumping but well adapted for rapid walking and flight. Males possess strongly pectinate (comb-like) antennae. Body form is relatively large for the family, with Cerophytum lii measuring 9.3–9.8 mm. Coloration is uniformly reddish brown. The upper distal angle of the profemur is quadrate (square-shaped).

Montane forest environments. Cerophytum lii was collected at 2100 m elevation on Mount Daweishan in Yunnan Province, China. The genus appears to favor higher elevation habitats within its Holarctic range.

Holarctic distribution spanning Europe, Asia, and North America. Documented from Japan, South Korea, Russian Far East, Europe, North America, and most recently China (Yunnan Province). Cerophytum lii is known only from its type locality in Southeast Yunnan.

Exhibits clicking behavior analogous to Elateridae, produced by thoracic structures that allow the body to flex and snap against substrates. Micro-CT studies of thoracic morphology indicate adaptations primarily for rapid walking and flight rather than the powerful jumping characteristic of Elateridae. This represents convergent evolution in clicking structures between Cerophytidae and Elateridae.

• ElateridaeTrue click beetles with which Cerophytum shares convergent clicking behavior; distinguished by greater thoracic specialization for jumping and different locomotor adaptations
• Campsosternus auratusAn elaterid species specifically compared in thoracic morphology studies; Cerophytum shows less jumping specialization and different walking/flight adaptations

• Coleoptera
• Cerophytidae
• click beetles
• rare beetles
• Holarctic
• convergent evolution
• montane
• China
• Yunnan
• thoracic morphology
• 3D reconstruction
• new species 2025

• BugGuide
• Wikipedia
• GBIF taxonomy match
• iNaturalist taxon
• NCBI Taxonomy
• Catalogue of Life
• Cerophytum lii Qiu & Ruan, sp. nov. (Coleoptera: Cerophytidae): First Record of the Family in China with Study on Its Thoracic Functional Morphology Through 3D Reconstruction.