Blacus chillcotti
van Achterberg, 1976
Blacus chillcotti is a of in the Braconidae, described by van Achterberg in 1976. Members of the Blacus are known as parasitoids of larvae, particularly those in the family Curculionidae (weevils). The species is part of the diverse ichneumonoid wasp radiation, which contains thousands of species specialized in of insect pests. Specific details about B. chillcotti remain limited in published literature.
Pronunciation
How to pronounce Blacus chillcotti: /ˈblɑːkəs tʃɪlˈkɒti/
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Identification
Blacus are small braconid wasps, generally 2–5 mm in length, with reduced wing venation and a characteristic metasomal formed by the tergites. Specific diagnostic features for B. chillcotti have not been separately documented; identification to species level requires examination of microscopic characters including antennal segment proportions, ovipositor length relative to body, and details of the propodeum . Reference to the original description (van Achterberg 1976) or specialized taxonomic keys for Palearctic or Nearctic Blacus species would be necessary for reliable identification.
Ecological Role
As a member of the Blacus, B. chillcotti likely functions as a koinobiont of concealed larvae, particularly weevils (Curculionidae). This ecological role contributes to natural suppression of herbivorous beetle in terrestrial .
Human Relevance
of Blacus have potential or documented value in programs targeting weevil pests of agriculture and forestry. The specific utility of B. chillcotti for biocontrol has not been established in published literature.
More Details
Taxonomic history
Blacus chillcotti was described by Dutch hymenopterist Cornelis van Achterberg in 1976. Van Achterberg is a prolific taxonomist of Braconidae, having described hundreds of . The specific epithet honors an individual, presumably a colleague or collector, though the etymology is not detailed in readily accessible sources.
Data deficiency
This has zero observations in iNaturalist and appears to lack any species-level records in major biodiversity databases beyond taxonomic catalog entries. This pattern suggests either genuine rarity, under-collection due to small size and cryptic habits, or possible synonymy with better-known species pending revisionary study.