Peltastica

Distinguished from other Derodontidae by the combination of tuberculate elytra (in P. tuberculata) and the structure of the prosternal process. Within Peltasticinae, Peltastica differs from the related genus Peltastes by details of the prosternal tooth and elytral sculpture. Accurate identification to species level requires examination of elytral tuberculation patterns and male genitalia.

Members of Peltastica are small beetles with the characteristic 'tooth-necked' condition: the prosternum bears a median tooth or projection that fits into a mesosternal cavity. The body is compact and somewhat convex. P. tuberculata is distinguished by tuberculate elytra with raised, wart-like projections. General coloration tends toward brown to black.

Associated with fungal substrates, including polypore fungi and decaying wood with fungal growth. Specific microhabitat preferences for P. amurensis remain undocumented.

P. tuberculata has been recorded from northern Europe and Russia. P. amurensis is known from the Amur region of far eastern Russia and adjacent areas. The genus has a Palearctic distribution with disjunct populations suggesting relictual range patterns.

Presumed to feed on fungal mycelia and spores based on family-level associations, though direct observations of feeding in Peltastica are lacking.

Likely contributes to nutrient cycling in forest ecosystems through consumption of fungal biomass, though quantitative ecological data are absent.

No known economic or medical significance. Occasionally collected by beetle specialists and mycophagous beetle researchers.

• PeltastesAlso in subfamily Peltasticinae with prosternal tooth; differs in elytral sculpture and body proportions
• DerodontusIn family Derodontidae but in subfamily Derodontinae; lacks pronounced prosternal tooth and has different antennal structure

• Coleoptera
• Derodontidae
• fungus beetles
• mycophagy
• Palearctic
• rare

• BugGuide
• Wikipedia
• GBIF taxonomy match
• iNaturalist taxon
• NCBI Taxonomy
• Catalogue of Life