Euphyllurinae

Genus Guides

Euphyllura(olive psyllids)
Neophyllura

Euphyllurinae is a of jumping plant-lice (Psylloidea) within the Liviidae. The subfamily includes economically significant such as the Asian citrus psyllid (Diaphorina citri), a major of (huanglongbing). Until recently, the subfamily was unknown from the Americas, with the 2023 description of Burckhardtiana from Brazil representing the first Neotropical record.

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Pronunciation

How to pronounce Euphyllurinae: //juːˌfɪl.jʊˈraɪ.niː//

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Identification

Members of Euphyllurinae can be distinguished from other Liviidae by morphological characters detailed in taxonomic keys; specific diagnostic features for the subfamily include particular wing venation patterns and genitalic structures. Keys for identification of and immatures are available for at least some .

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Distribution

The has a broad distribution including the Old World tropics and subtropics. The first Neotropical record was established in 2023 from Brazil (Burckhardtiana spp.), extending the known range to South America. Specific distribution data for most remains limited.

Diet

Feeding habits are typical of psyllids: piercing-sucking herbivory on plant vascular tissues. The Brazilian Burckhardtiana develops on Roupala montana (Proteaceae), an unusual for psyllids. The Asian citrus psyllid (Diaphorina citri) feeds on citrus and related Rutaceae.

Host Associations

Roupala montana - plantProteaceae; unusual for psyllids

Human Relevance

The includes Diaphorina citri, the Asian citrus psyllid, which is the primary of Candidatus Liberibacter asiaticus, the bacterium causing (huanglongbing). This threatens citrus industries worldwide and has prompted extensive efforts, including importation of such as Tamarixia radiata from Pakistan into California.

Similar Taxa

Other Liviidae subfamiliesMorphological similarity in general body plan; distinguished by wing venation, genitalic characters, and associations

More Details

Taxonomic history

The was previously unknown from the Americas until the 2023 description of Burckhardtiana gen. nov. from Brazil, which included three new (B. apollo, B. athena, B. zeus)

Biological control context

Euphyllurinae:Diaphorinini is explicitly referenced in range testing protocols for agents, reflecting the economic importance of D. citri