CUMHURIYET SCIENCE JOURNAL, cilt.46, sa.2, ss.377-383, 2025 (Hakemli Dergi)
The genus Tenthredopsis (Tenthredinidae: Hymenoptera), characterized by a Palearctic distribution, is widely
recognized as a taxonomic challenge due to its limited morphological variation. This study aims to evaluate the
phylogenetic and biogeographical characteristics of Tenthredopsis species in Anatolia by analyzing their
morphological and molecular traits. Initially, morphotypes were defined based on morphological characters, and
the taxonomic validity of each morphotype was assessed through phylogenetic analyses using three
mitochondrial gene regions. The findings revealed congruence between morphological and molecular data. The
study identified the distribution of 27 taxa within Anatolia, comprising 17 confirmed and 10 potential taxa,
represented by 250 individuals belonging to the genus Tenthredopsis. The results underscore Anatolia's
significance as a hotspot for genetic and morphological diversity within the genus Tenthredopsis and highlight
its critical role in the evolutionary adaptations of these species. Additionally, the observed distribution patterns
further support the importance of Anatolia as a refugium during the last glacial periods.