Trachyphloeosoma

Wollaston, 1869

Species Guides

1

Trachyphloeosoma is a of small, wingless broad-nosed weevils in the Entiminae. are terricolous and covered by brownish earth-like encrustation formed by specialized setae containing soil. The genus now includes at least six species, with recent discoveries in China expanding its known range.

Trachyphloeosoma advena by (c) Even Dankowicz, some rights reserved (CC BY), uploaded by Even Dankowicz. Used under a CC-BY license.Trachyphloeosoma advena by (c) Even Dankowicz, some rights reserved (CC BY), uploaded by Even Dankowicz. Used under a CC-BY license.Trachyphloeosoma advena by (c) Even Dankowicz, some rights reserved (CC BY), uploaded by Even Dankowicz. Used under a CC-BY license.

Pronunciation

How to pronounce Trachyphloeosoma: /ˌtrækɪfloʊˈiːoʊsəmə/

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Identification

Small weevils (approximately 2–3 mm) with wingless condition; body covered by specialized setae that accumulate soil, creating an earth-like encrustation that obscures underlying . Members possess elevated ridges behind the and slender protibiae. Specific may be distinguished by pronotal sculpturing, such as a longitudinal furrow along the entire pronotum, and distribution of erect setae on elytral interstriae.

Images

Habitat

Leaf litter in deciduous layers of mixed secondary broad-leaved and bamboo forests; found at elevations of 158–274 m.

Distribution

Recorded from China (Guangdong Province: Guangzhou City, Heyuan City), with -level records from Hawaii, Japan, and South Korea.

Seasonality

have been collected in August–September.

Behavior

Wingless with limited ability; terricolous adapted to ground-dwelling in leaf litter.

Ecological Role

Leaf litter beetle; component of ground-dwelling in forest .

Sources and further reading