Tarsostenus

Distinguished from other clerid genera by the combination of: oblong pronotum with glabrous discal streaks and absence of lateral tubercles; ten rows of elytral punctations; and unguis without denticle. The transverse white elytral band present in several species provides additional visual cue. Size range (3.5–8.0 mm) and slender oblong body form separate it from more robust or rounded clerid genera.

Oblong beetles measuring 3.5–8.0 mm in length and 1.0–2.0 mm in width. Pronotum distinctly oblong with glabrous streaks on the disc and lacking lateral tubercles. Elytral disc bears ten rows of punctations. Unguis (claw) lacks a denticle. Several species exhibit a transverse white band positioned halfway along the elytra.

Associated with wood-boring beetle infestations in timber and wooden structures. Documented from lumber and furniture derived from multiple tree species including ash, hickory, persimmon, white oak, pecan, Cercis siliquastrum, Corymbia maculata, Ficus retusa, Schinus terebinthifolius, and Triplochiton sclerodendron. T. hilaris collected from Eucalyptus trees. T. kanak collected from rainforest vegetation.

Papua New Guinea (T. antehelvis); New Caledonia (T. bicolor, T. kanak, T. tricolor); Australia (T. hilaris); cosmopolitan (T. univittatus). GBIF records indicate presence in Northern Europe and Southern Europe.

Predators on wood-boring beetles. T. univittatus preys on bostrichids including Lyctus, Sinoxylon, Xylobiops, and Trogoxylon, as well as anobiines. T. hilaris associated with cerambycid-infested Eucalyptus.

• Lyctus - preybostrichid wood-borer
• Sinoxylon - preybostrichid wood-borer
• Xylobiops - preybostrichid wood-borer
• Trogoxylon - preybostrichid wood-borer
• anobiines - preywood-boring beetles
• cerambycids - preylonghorn beetles, associated with T. hilaris on Eucalyptus

Predatory behavior targeting wood-boring beetles. T. univittatus has been found in borer-infested lumber and wooden furniture, indicating active searching or colonization of infested wood. T. kanak collected by beating vegetation, suggesting at least some species may be found in foliage.

Predator of wood-boring beetles, potentially functioning as a biological control agent in timber and wooden products. May help regulate populations of economically significant pests including powderpost beetles (Lyctus spp.) and furniture beetles.

T. univittatus has documented presence in commercial lumber and wooden furniture, where it preys on pest beetles. Potential value as a natural biocontrol agent in stored timber and wood products. No documented negative impacts to human interests.

• Other Cleridae generaTarsostenus distinguished by unique combination of oblong pronotum with glabrous streaks, ten elytral punctation rows, and denticle-lacking unguis; most other clerids have different pronotal shapes, punctation patterns, or claw morphology

• Cleridae
• checkered beetles
• predator
• wood-borer predator
• biocontrol
• timber pest
• cosmopolitan

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