Phytomyza triostevena

Eiseman & Lonsdale, 2021

Phytomyza triostevena is a recently described leaf-mining fly in the Agromyzidae, first recognized as a distinct by Eiseman & Lonsdale in 2021. It was previously conflated with the native holly leafminer Phytomyza ilicicola, from which it has been taxonomically separated based on morphological and biological distinctions. The species develops as a larva within leaves of its plant, creating serpentine mines between the upper and lower epidermal layers. Its and host associations appear similar to those of related holly-feeding Phytomyza species, though specific details remain under investigation due to its recent description.

Pronunciation

How to pronounce Phytomyza triostevena: /faɪtoʊˈmaɪzə ˌtraɪoʊˈstiːvɛnə/

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Identification

Phytomyza triostevena can be distinguished from the closely related Phytomyza ilicicola through careful examination of and plant association. The was formally separated from P. ilicicola based on diagnostic morphological characters identified by Eiseman & Lonsdale (2021). Identification requires expert taxonomic analysis; the mines and larvae are not reliably distinguishable from those of P. ilicicola by casual observation.

Similar Taxa

  • Phytomyza ilicicolaPreviously considered ; separated in 2021 based on morphological and biological differences. Both are leafminers on holly (Ilex) species, but P. triostevena has been associated with Triosteum (horse-gentian) rather than Ilex opaca.

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