Caryedon
Caryedon
Classification
- Phylum: Arthropoda
- Subphylum: Hexapoda
- Class: Insecta
- Order: Coleoptera
- Suborder: Polyphaga
- Superfamily: Chrysomeloidea
- Family: Chrysomelidae
- Subfamily: Bruchinae
- Tribe: Pachymerini
- Genus: Caryedon
Pronunciation
How to pronounce Caryedon: /ˈkæriːɪˌdɒn/
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Images
Summary
Caryedon is a genus of pea and bean weevils in the Chrysomelidae family, with about 11 described species known to infest legumes, making them significant agricultural pests.
Physical Characteristics
Caryedon species are characterized by their small size and robust, ovoid body shape typical of weevils. They have elongated snouts and well-developed antennae.
Identification Tips
Look for distinctive elongated snouts and ovoid body shape. Specific species can be identified based on color patterns and size.
Habitat
Caryedon species are typically found in habitats where their host plants, primarily legumes, are abundant. They are commonly associated with agricultural fields where peas and beans are grown.
Distribution
Caryedon species can be found in various regions around the world, depending on the specific species, with a notable presence in agricultural areas of Europe, Asia, and Africa.
Diet
Caryedon weevils primarily feed on legumes, particularly peas and beans. They often infest seeds and pods of these plants.
Life Cycle
Caryedon weevils undergo complete metamorphosis, developing from egg to larva, pupa, and adult. The larvae typically develop inside the seeds or pods of their host plants.
Reproduction
Mating occurs on or near host plants. Females lay eggs within the seeds or pods, where the larvae will then develop.
Predators
Natural predators include various species of birds and other insects such as parasitoids and predatory beetles.
Ecosystem Role
Caryedon species play a role in the decomposition process by breaking down plant material, although they are also considered pests in agricultural systems due to their feeding habits on crops.
Economic Impact
Caryedon species are known pests of legumes, leading to significant economic losses in agricultural production of peas and beans.
Collecting Methods
- Hand collection from host plants
- Using insect nets over crops
- Traps baited with attracting substances
Preservation Methods
- Drying specimens
- Preserving in ethanol
- Pinning specimens for display
Evolution
Caryedon is a representative of the subtribe Caryedontina, illustrating the evolutionary diversity within the family Chrysomelidae, particularly among seed-feeding beetles.
Misconceptions
Some people may confuse Caryedon weevils with similar-looking beetles that do not infest legumes, leading to an underestimation of their pest status.
Tags
- Caryedon
- bean weevil
- peas
- legumes
- agriculture