Thryallis undatus

(Chevrolat, 1834)

Thryallis undatus is a longhorn (: Lamiinae: Anisocerini) first described by Chevrolat in 1834. The has been documented as a pest of Persian lime (Citrus latifolia) in commercial orchards in Veracruz, Mexico, where oviposit on trunks and branches and create galleries 2–5 cm deep. This represents the first record of the species associated with the Rutaceae . distribution includes Middle America and North America, with records from Guatemala and Honduras.

Pronunciation

How to pronounce Thryallis undatus: /ˈθraɪəlɪs ʌnˈdeɪtəs/

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Habitat

Persian lime orchards in Martínez de la Torre municipality, central Veracruz state, Mexico. requirements are not documented.

Distribution

Middle America and North America; recorded from Guatemala, Honduras, and Mexico (Veracruz). First recorded in association with Rutaceae in Veracruz, Mexico.

Diet

feed internally in galleries within trunks and branches of Persian lime (Citrus latifolia). Natural diet outside of cultivated context is unknown.

Host Associations

  • Citrus latifolia - pestPersian lime; first record of association with Rutaceae. oviposit on trunks and branches, create galleries 2–5 cm deep causing branch drying and tree death.
  • Rutaceae - pestFirst record of this associated with this .

Life Cycle

oviposit on trunks and branches. form galleries 2–5 cm deep in wood. Developmental details beyond larval gallery formation are not documented.

Behavior

form galleries that can surround trunks or branches, preventing nutrient flow. Damage is more severe in trees previously affected by vascular or nutrient deficiencies.

Ecological Role

pest causing to Persian lime production in Mexico's most important Persian lime production region. Average in sampled trees was 10.8%.

Human Relevance

Documented as an agricultural pest in Persian lime orchards. Management strategies for control have not been developed.

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Sources and further reading