Acizzia uncatoides

(Ferris & Klyver, 1932)

Acacia Psyllid

Acizzia uncatoides is a native to Australia, primarily associated with Acacia species, especially Acacia melanoxylon, and some Albizia species. It has been introduced to multiple regions worldwide, including La Réunion, where it poses a significant threat to Acacia heterophylla forests. Though capable of reaching high densities, it is not generally regarded as a major pest species in most of its range. The species serves as prey for psyllid and has been targeted for programs.

Acizzia uncatoides adult nymphs sugars Hamptons Rd 22 Aug 2009 by Warricknelson. Used under a CC BY 3.0 license.

Pronunciation

How to pronounce Acizzia uncatoides: /æˈsɪtsiə ʌnˌkætoʊˈaɪdiːz/

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

Identification

As a member of Psyllidae, this exhibits the typical including a compact body, relatively large , and wings held roof-like over the body when at rest. Specific diagnostic features distinguishing it from are not documented in available sources.

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Habitat

Associated with Acacia and Albizia plants; in its native range, occupies Australian where these leguminous trees occur. In invaded regions, found in highland forests of La Réunion dominated by Acacia heterophylla, as well as in various environments where planted or naturalized Acacia occur.

Distribution

Native to Australia; introduced and established in multiple parts of the world including La Réunion (Indian Ocean) and the Azores (Portugal: Flores, Graciosa, Pico, Santa Maria, Terceira islands). Distribution closely tracks that of its Acacia and Albizia plants.

Diet

Phloem-feeding on Acacia , with strong preference for Acacia melanoxylon; also feeds on some Albizia species.

Host Associations

Acacia melanoxylon - primary especially favored
Acacia heterophylla - in La Réunion, subject to conservation concern
Albizia - some

Ecological Role

Herbivore that can reach high densities on plants; serves as prey for . In La Réunion, its proliferation threatens Acacia heterophylla forest , prompting intervention.

Human Relevance

Not generally regarded as a pest in most regions, though capable of proliferating to high numbers. In La Réunion, considered a critical threat to highland forests, motivating efforts using the Harmonia conformis. Introduced to new regions presumably with plant material.

Similar Taxa

Other Acizzia species share similar associations with Acacia; specific identification requires detailed morphological examination not covered in available sources.
Other psyllid species on AcaciaMultiple utilize Acacia; A. uncatoides distinguished by preference patterns and presumably morphological characters.

More Details

Biological Control Context

In La Réunion, A. uncatoides invasion threatens the Acacia heterophylla, prompting evaluation of Harmonia conformis as a agent. Risk assessment indicates manageable environmental risk due to climatic segregation between the and vulnerable resident coccinellid .