Broad-nosed Weevils

Pronunciation

How to pronounce Entiminae: /ˌɛn.tɪˈmaɪ.niː/

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Summary

The Entiminae subfamily of weevils is the most diverse Weevil subfamily in North America containing 124 genera and nearly 14,000 species worldwide, primarily characterized by their broad short rostrum and iridescent scales.

Physical Characteristics

Typically characterized by a broad and short rostrum; the presence of a mandibular scar that appears shortly after emergence from the pupal stage; integument colors can range from black, reddish, orange to metallic; many species covered in iridescent scales.

Identification Tips

Look for the broad and short rostrum and the mandibular scar; observe the coloration and presence of scales, which can vary among species.

Habitat

Entimines are commonly found in varied habitats including urban environments, forested areas, and less disturbed sites, with a preference for soil and leaf litter.

Distribution

With over 12,000 described species distributed in more than 1,370 genera, they are widespread globally, particularly in diverse environments.

Diet

Entimines are polyphagous herbivores, feeding on a wide range of plants including angiosperms, and occasionally gymnosperms; preferred plants belong to families such as Fabaceae, Malvaceae, Rutaceae, and Solanaceae.

Life Cycle

The larvae live in soil and feed on roots; eggs are typically laid loosely on the substrate or in clusters glued to vegetation.

Reproduction

Many species are known to be parthenogenetic, and they do not use their rostrum for oviposition.

Economic Impact

Only a few species are noted as significant pests of economic importance despite the subfamily's wide diversity.

Collecting Methods

• Beating sheet
• Manual collecting
• Leaf litter sifting

Similar Taxa

• Brachyderinae
• Leptopiinae
• Otiorhynchinae
• Tanymecinae
• Thylacitinae

Tags

• Entiminae
• Weevils
• Coleoptera