Phylinae

Douglas & Scott, 1865

phyline plant bugs

Tribe Guides

Phylinae is a large of plant bugs (Miridae) comprising approximately 400 and over 2000 worldwide. The subfamily underwent significant taxonomic revision in 2013, reorganizing tribal classifications and establishing nine currently recognized tribes. Members exhibit diverse plant associations, with many species specialized on particular plant . The subfamily includes economically significant species, some of which are while others are phytophagous.

Leucophoropterini by (c) Steve Kerr, some rights reserved (CC BY), uploaded by Steve Kerr. Used under a CC-BY license.

Rhinacloa forticornis by no rights reserved, uploaded by Jesse Rorabaugh. Used under a CC0 license.

Pronunciation

How to pronounce Phylinae: /fɪˈlaɪniː/

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Identification

Identification to tribe or requires examination of male genitalia, particularly the left paramere and vesica structure. The reduced wing venation distinguishes Phylinae from other Miridae such as Orthotylinae and Deraeocorinae. Within Phylinae, tribal assignment relies on combinations of structure, pronotal shape, pretarsal structure, and genitalic . -level identification typically requires detailed examination of male genitalia and often plant association data.

Images

Habitat

Occurs in diverse terrestrial including forests, grasslands, shrublands, and agricultural systems. Many are closely associated with specific plants, including restiids (Restionaceae) in Australia, pelargoniums (Geraniaceae) in South Africa, and various other plant worldwide. Some species inhabit specialized microhabitats such as leaf margin roll galls on Ficus.

Distribution

Worldwide distribution with recorded from all major biogeographic regions. Particularly diverse in the Northern Hemisphere temperate zones, Australia, and the Oriental region. Documented from North America, South America, Europe, Asia, Africa, Australia, and Oceania including New Caledonia.

Diet

Phytophagous, feeding on plant sap from various . Some members of the tribe Pilophorini are predatory, feeding on other small arthropods. Host plant associations are often highly specific, with many species restricted to particular plant or .

Host Associations

Restionaceae - primary Restiophylus specialized on Australian restiid clade
Geraniaceae - primary Macrotylus henryi feeds on Pelargonium
Loranthaceae - primary Hypseloecus associated with Taxillus mistletoes
Rosaceae - Pilophorus reoi found on Rubus sieboldii
Ficus benghalensis - some Phylinae inhabit leaf margin roll galls

Life Cycle

Hemimetabolous development with , nymph, and stages. Specific details vary among and are often poorly documented. Multiple per year likely in temperate species.

Behavior

Many exhibit strong plant fidelity, with and nymphs found on the same host species. Some groups show specialized use, such as association with mistletoes or restiid plants. Predatory species in Pilophorini actively hunt prey on vegetation.

Ecological Role

Phytophagous function as herbivores in plant , potentially influencing plant and community composition. Predatory species contribute to . Some species may serve as prey for larger arthropods and vertebrates.

Human Relevance

Some are economically significant as pests of cultivated plants or as beneficial . The includes species used in research. Taxonomic complexity and ongoing revisions present challenges for identification in applied contexts.

Similar Taxa

OrthotylinaeSimilar body form and size; distinguished by different wing venation patterns and genitalic structure
DeraeocorinaeOverlapping size range and general appearance; separated by wing venation and pretarsal structure

More Details

Taxonomic History

The was extensively revised by Schuh & Menard in 2013, resulting in major reorganization of tribal classification. The tribes Auricillocorini and Pronotocrepini were synonymized, and new tribes Decomiini, Exocarpocorini, Cremnorrhini, Nasocorini, and Semiini were established or resurrected.

Research Significance

Phylinae has become a model group for studying plant evolution and diversification, with recent phylogenetic studies reconstructing the timing of evolutionary radiations in relation to host plant repertoire.