Octotoma

Species Guides

3

Octotoma is a of tortoise beetles and hispines (Coleoptera: Chrysomelidae) comprising approximately 11–12 described . Members of this genus are leaf-mining beetles with documented associations to camara, an weed. Several species, notably O. championi and O. scabripennis, have been extensively studied and employed as agents. The genus exhibits a leaf-mining larval phase followed by free-living, leaf-chewing .

Octotoma plicatula by (c) Julia Beach, some rights reserved (CC BY), uploaded by Julia Beach. Used under a CC-BY license.Octotoma plicatula by (c) Neal Kelso, some rights reserved (CC BY), uploaded by Neal Kelso. Used under a CC-BY license.Octotoma plicatula by no rights reserved, uploaded by kent ozment. Used under a CC0 license.

Pronunciation

How to pronounce Octotoma: /ˌɒk.təˈtoʊ.mə/

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Habitat

Associated with camara plants; larvae are endophagous leaf miners within leaves, while are free-living on foliage.

Distribution

have been introduced to Hawaii and Australia for purposes; native range not specified in available sources.

Diet

camara (leaf tissue); larvae mine within leaves, chew leaf tissue.

Host Associations

  • Lantana camara - primary Feeding, development, and oviposition restricted almost entirely to this ; confirmed through specificity testing in Hawaii

Life Cycle

Leaf-mining larval phase followed by within leaf tissue; free-living, leaf-chewing stage. Development time accelerated by approximately 10–13 days under elevated temperature conditions.

Behavior

Larvae are endophagous leaf miners; exhibit free-living leaf-chewing . Feeding and oviposition behavior has been studied in field and simulated-field experimental conditions.

Ecological Role

Herbivore; agent candidate for weed camara. Serves as for (Sympiesis sp. near aburiana) and prey for (primarily spiders) in introduced ranges.

Human Relevance

Employed as agents for camara, an important weed in multiple countries. specificity testing demonstrated narrow host range, supporting suitability for programs.

Similar Taxa

  • Uroplata girardiAlso a leafmining used as agent; both share similar ecological role, associations, and were studied concurrently in Hawaii and Australia. Distinguished by taxonomic placement in different within Chrysomelidae: Hispinae.

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