Phacopteronidae

jumping plant-lice

Genus Guides

Pseudophacopteron

is a of psyllids (jumping plant-lice) within the superfamily Psylloidea. The family contains at least 31 Afrotropical , primarily in the Pseudophacopteron, with additional species in the genus Phacopteron reported from southern India. Most species are associated with plants in the order Sapindales, particularly Burseraceae and Rutaceae. Some species are gall-inducers, while others are free-living phloem feeders. The family has been documented as containing pests of cultivated plants, including species damaging to Dacryodes edulis in Cameroon.

Pronunciation

How to pronounce Phacopteronidae: //fæˌkɒptəˈroʊnɪˌdiː//

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Identification

and fifth instar nymphs can be identified using morphological keys. The Afrotropical fauna has been revised with illustrated keys provided for both adults and fifth instar larvae. -level identification relies on detailed morphological examination; sympatric species may occur on the same plant requiring careful differentiation.

Habitat

Associated with woody plants in natural and cultivated settings. Documented from nursery environments on cultivated Dacryodes edulis in Cameroon. specifics otherwise tied to host plant distribution in Afrotropical and Oriental regions.

Distribution

Afrotropical region (primary diversity center) including Kenya, Cameroon, Angola, Nigeria, and Uganda. Oriental region: southern India (Kerala State, Dehra Dun) for Phacopteron.

Diet

Phloem-feeding. Some are gall-inducers on plant leaves.

Host Associations

Sapindales - primary order26 of 31 Afrotropical
Burseraceae - Commiphora africana, Dacryodes edulis, Garuga pinnata
Rutaceae - Ekebergia benguelensis, Vepris nobilis, Zanthoxylum gilletii
Meliaceae - Khaya senegalensis
Apocynaceae - Tabernaemontana stapfiana (single )
Myrtaceae - indirectTriozidae gall-inducer on Syzygium association only

Life Cycle

hatch and develop through five instar larval stages before becoming . Two Afrotropical (Pseudophacopteron pusillum and P. eastopi) have been documented sharing different oviposition sites on the same plant.

Behavior

Sympatric occurrences of multiple Pseudophacopteron on single species recorded. Oviposition site partitioning observed between P. pusillum and P. eastopi on Dacryodes edulis. Some species induce leaf galls.

Ecological Role

Phloem feeders on woody plants; gall-inducers modify plant tissue. Serve as hosts for in Encyrtidae (Ooencyrtus, Psyllaephagus, Syrphophagus). Some are pests of cultivated plants requiring .

Human Relevance

Pest status: Pseudophacopteron pusillum and P. eastopi cause important damage to cultivated Dacryodes edulis (safou, African plum) in Cameroon, a significant food crop. Integrated pest control measures have been necessitated. Taxonomic importance as a group for understanding diversification and associations.

Similar Taxa

TriozidaeAlso gall-inducing psyllids; both Encyrtidae and may co-occur on similar host plants. Distinguished by morphological characters and host associations.
PsyllidaeOther major ; distinguished by Afrotropical center of diversity, specific associations with Sapindales, and morphological features of and nymphs.

More Details

Taxonomic revision

The Afrotropical fauna was comprehensively revised in 2009, recognizing 31 including 18 new species descriptions. Two large, probably were recognized within the Afrotropical .

Parasitoid associations

First record of Ooencyrtus Ashmead on psylloid was documented from Phacopteron in India. Multiple Encyrtidae (Psyllaephagus, Syrphophagus) parasitize .

Host data gaps

Four of 31 Afrotropical lack reliable data, indicating incomplete biological knowledge for the .