Anthribidae

Billberg, 1820

fungus weevils

Subfamily Guides

Anthribinae(fungus weevils)
Choraginae(fungus weevils)

is a of beetles commonly known as fungus weevils, distinguished from true weevils (Curculionidae) by their straight, non-elbowed . Members of this family typically possess thread-like antennae that may exceed body length, representing the longest antennae among all Curculionoidea. The appears as a separate segment from the , and maxillary palps are notably long and projecting. Most feed on fungi or decaying plant matter, with larvae developing within dead wood. Some members exhibit unusual feeding habits: Choraginae includes seed-feeding species, a few are stored product pests, and the Anthribus uniquely preys upon soft scale insects.

Piesocorynus by (c) Katja Schulz, some rights reserved (CC BY). Used under a CC-BY license.

Phoenicobiella schwarzii by (c) John Rosford, some rights reserved (CC BY), uploaded by John Rosford. Used under a CC-BY license.

Goniocloeus bimaculatus by (c) skitterbug, some rights reserved (CC BY), uploaded by skitterbug. Used under a CC-BY license.

Pronunciation

How to pronounce Anthribidae: //ænˈθrɪbɪˌdiː//

These audio files are automatically generated. While they are not always 100% accurate, they are a good starting point.

Identification

can be distinguished from Curculionidae (true weevils) by their straight, non-elbowed . The antennae are thread-like and may occasionally be longer than the body, representing the longest antennae found in Curculionoidea. The appears as a separate segment distinct from the , and the maxillary palps are long and projecting. These features are shared with , though Anthribidae are more diverse and widely distributed.

Images

Habitat

Most anthribids are associated with fungi or decaying plant matter. Larvae develop within dead wood. Some inhabit stored products, particularly tropical and subtropical regions where they infest commodities such as coffee beans, maize, cassava, and dried fruits.

Distribution

Worldwide distribution, with greatest diversity in tropical and subtropical regions. presence documented across North America, South America, Europe, Asia, and Africa.

Diet

Most feed upon fungi or decaying plant matter. Some Choraginae feed on seeds. A few species are stored product pests. The Anthribus is exceptional, feeding upon soft scale insects rather than plant material.

Life Cycle

Larvae feed within dead wood. Development from to varies by and : in Araecerus fasciculatus, egg-to-adult development ranges from 51 days on coffee beans to 70 days on less suitable hosts. stages include egg, larva, and pupa.

Ecological Role

Decomposers of dead wood and fungal material. Some are significant pests of stored agricultural products, causing quantitative losses and qualitative degradation of commodities including coffee, cassava, and maize. The Anthribus serves as a agent of soft scale insects.

Human Relevance

Several are economically important stored product pests. Araecerus fasciculatus (coffee bean weevil) attacks more than 100 types of stored products and can cause severe damage to coffee, cassava, cocoa, and traditional Chinese medicine materials. Some Choraginae species also damage stored seeds. Anthribus species may provide beneficial pest control of scale insects in agricultural settings.

Similar Taxa

CurculionidaeTrue weevils possess elbowed (geniculate) with a distinct club, whereas have straight, thread-like antennae without an elbow.
NemonychidaeShares the characteristic of straight and separate from , but are less diverse and primarily associated with pollen feeding on conifers.