Phytomyza-ilicicola-complex
Guides
Phytomyza triostevena
Phytomyza triostevena is a recently described leaf-mining fly in the family Agromyzidae, first recognized as a distinct species 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 host plant, creating serpentine mines between the upper and lower epidermal layers. Its life cycle and host associations appear similar to those of related holly-feeding Phytomyza species, though specific details remain under investigation due to its recent description.