Tanysphyrus ater

Blatchley, 1928

Tanysphyrus ater is a small weevil described by Blatchley in 1928. It belongs to the Erirhinidae (sometimes placed in Brachyceridae or Curculionidae in different classifications), a group of primitive weevils. The species epithet 'ater' refers to its black coloration. Very little published information exists on its or , with only scattered collection records from North America.

Pronunciation

How to pronounce Tanysphyrus ater: //tænɪˈsfɪrəs ˈeɪtər//

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Distribution

Recorded from Belgium (present and absent records noted) and British Columbia, Canada. Additional observations from iNaturalist suggest limited but widespread occurrence in northern regions.

More Details

Taxonomic placement

The placement of Tanysphyrus ater varies across sources: GBIF places it in Brachyceridae, NCBI in Erirhinidae, and iNaturalist in Curculionidae. This reflects ongoing taxonomic uncertainty regarding the circumscription of these weevil families. Erirhinidae is generally treated as a valid family of primitive weevils (superfamily Curculionoidea), sometimes subsumed within Brachyceridae or treated as a of Curculionidae in broader classifications.

Data scarcity

This is exceptionally poorly documented in the literature. No comprehensive biological studies, ecological investigations, or detailed morphological descriptions beyond the original species description are readily available. The iNaturalist observation count of only 2 records underscores its rarity in citizen science databases.