Cylas

Pronunciation

How to pronounce Cylas: //ˈsaɪlæs//

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Summary

Cylas is a genus of sweet potato weevils notable for its role as an agricultural pest in southern U.S. agriculture, primarily feeding on plants of the Convolvulaceae family, including sweet potatoes.

Physical Characteristics

Cylas species are characterized by their elongated bodies and distinctive snouts, typical of weevils. They exhibit a variety of coloration patterns, often blending with the plants they inhabit.

Identification Tips

Look for the characteristic elongated snout and the smooth, shiny body typical of weevils. Specific species may have distinct coloration or marking on the elytra.

Habitat

Cylas weevils are primarily found in habitats where their host plants, particularly those in the Convolvulaceae family, are present. They favor warm, humid environments commonly associated with southern US landscapes.

Distribution

Native to the Neotropics, Cylas is adventive and widespread in the southern United States.

Diet

Cylas weevils feed on members of the Convolvulaceae family, with a notable preference for sweet potatoes (Ipomoea batatas).

Life Cycle

The life cycle of Cylas includes egg, larval, pupal, and adult stages, typically occurring within or near the host plants.

Reproduction

Cylas weevils lay eggs in the soil or directly on the host plant, where larvae hatch and feed on the plant tissues.

Predators

Cylas weevils may be preyed upon by various birds and insects, including parasitic wasps and predatory beetles.

Ecosystem Role

As herbivores, Cylas species play a role in the ecosystem dynamics of their habitats, particularly in the context of plant health and agricultural systems.

Economic Impact

Cylas weevils are considered agricultural pests, particularly affecting sweet potato crops, which can lead to significant economic losses for farmers.

Collecting Methods

• Traps can be set near host plants to capture adult weevils.
• Manual collection from infested plants.

Preservation Methods

• Ethanol preservation for genetic studies.
• Drying specimens for entomological collections.

Evolution

Cylas belongs to the family Brentidae and has evolved to capitalize on host plants like sweet potatoes, showcasing adaptations such as specialized mouthparts for feeding.

Similar Taxa

• Other genera in Brentidae family
• Other weevil species in the Curculionoidea superfamily.

Misconceptions

There may be a misconception that all weevils are harmful; however, while Cylas can be pests, many weevils play beneficial roles in ecosystems.

Tags

• Cylas
• weevils
• agricultural pests
• Convolvulaceae
• sweet potato weevils