Plagiognathus

Fieber, 1858

Species Guides

Plagiognathus albatus(Sycamore plant bug)
Plagiognathus alboradialis
Plagiognathus arbustorum(Common Nettle Flower Bug)
Plagiognathus atricornis
Plagiognathus blatchleyi(Blatchley's mirid)
Plagiognathus brevirostris
Plagiognathus brunneus
Plagiognathus chrysanthemi(trefoil plant bug)
Plagiognathus cornicola

Plagiognathus is a large of plant bugs in the Miridae, comprising over 120 described . Members are commonly known as jumping tree bugs or plant bugs. The genus exhibits diverse associations with various flowering plants, including agricultural crops and wild species. Individual species show specialized relationships with particular host plants, though broader patterns across the genus remain incompletely documented.

Plagiognathus viticola by no rights reserved, uploaded by Ingolf Askevold. Used under a CC0 license.

Plagiognathus albatus by (c) Justin Williams, some rights reserved (CC BY), uploaded by Justin Williams. Used under a CC-BY license.

Pronunciation

How to pronounce Plagiognathus: //ˌpleɪˌdʒiˈoʊnəθəs//

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Images

Distribution

occur across the Palearctic Region and North America. Documented records include Turkey, with specific locality data from Karaman province, and Ontario, Canada.

Diet

Phytophagous. Plagiognathus chrysanthemi feeds on birdsfoot trefoil (Lotus corniculatus). Plagiognathus ozgurkocaki is associated with the Phlomis leucophracta (Lamiaceae). plant associations for most are unknown.

Host Associations

Lotus corniculatus (birdsfoot trefoil) - plantDocumented for Plagiognathus chrysanthemi; pest of cultivated birdsfoot trefoil in Ontario
Phlomis leucophracta (Lamiaceae) - plantDocumented for Plagiognathus ozgurkocaki; locally in Karaman, Turkey

Life Cycle

Five nymphal instars precede the stage. The fifth instar of Plagiognathus albatus has been described.

Human Relevance

Plagiognathus chrysanthemi is recognized as an agricultural pest of birdsfoot trefoil in Ontario, Canada. Other have no documented economic impact.

More Details

Taxonomic scope

The contains at least 110-123 described , making it one of the larger genera within Miridae. Species-level identification requires examination of genitalic structures and detailed morphological characters.

Host specificity

Available evidence suggests varying degrees of specialization among . Plagiognathus ozgurkocaki appears unique among Palearctic in its exclusive association with Phlomis leucophracta, while P. chrysanthemi is a documented pest of a cultivated legume. The extent of oligophagy versus polyphagy across the is unknown.