Trichapiina

Genus Guides

3

Trichapiina is a subtribe of straight-snouted weevils (Brentidae) within the tribe Trichapini. Members of this subtribe are characterized by distinctive morphological features related to their elongated rostrum and antennal structure. The subtribe comprises multiple distributed across tropical and subtropical regions.

Trichapiina by (c) Janet Graham, some rights reserved (CC BY). Used under a CC-BY license.

Pronunciation

How to pronounce Trichapiina: /ˌtrɪkəˈpaɪɪnə/

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Identification

Trichapiina can be distinguished from other brentid subtribes by the combination of: elongated, slender rostrum with specific insertion patterns of ; antennal scape that extends beyond the margin of the pronotum; and particular arrangements of setae on the rostrum and body. These features separate them from the related subtribe Trichapina (without the 'i'), which has historically been confused due to similar naming.

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Distribution

Tropical and subtropical regions, with documented occurrence in Southeast Asia, Oceania, and parts of the Neotropics based on specimen records and iNaturalist observations.

Similar Taxa

  • TrichapinaHistorically confused due to similar names; Trichapina (without 'i') differs in antennal scape length and rostral setation patterns.
  • EubaptiniAnother subtribe of Brentinae with elongated rostra, but distinguished by different antennal club structure and insertion point on the rostrum.

More Details

Taxonomic History

The subtribe Trichapiina was established to accommodate certain brentid previously grouped more broadly within Trichapini. The naming similarity with 'Trichapina' has caused historical confusion in literature.

Observation Data

iNaturalist records indicate 1,227 observations, suggesting moderate documentation in citizen science databases, though many may be identified only to or higher level.

Sources and further reading