Integrative revision of the Palaearctic owlfly genus Deleproctophylla Lefèbvre (Neuroptera, Myrmeleontidae, Ascalaphinae)

The ascalaphid genus Deleproctophylla Lefèbvre is a characteristic element of insects from dry, warm grasslands across the Palaearctic, currently comprising five described species distributed in northern Africa, southern Europe, and western Asia. As with other colorful owlfly genera, species of Deleproctophylla have traditionally been differentiated based on wing pattern, a trait prone to high variability and misidentification.

The genus currently includes five species: D. australis (Fabricius), D. variegata (Klug), D. dusmeti (Navás), D. gelini Navás, and D. bleusei Kimmins; however, the taxonomic identity of some populations, particularly from Anatolia, has remained uncertain. Even western European species have been affected by taxonomic confusion, as exemplified by D. bleusei, whose presence in southern Spain was only recently detected. A comprehensive revision of all species in the genus demonstrated that the shape of the male ectoproct is the most reliable diagnostic character for species identification.

This study also led to the discovery of two new species, D. dandizenor Badano, Zheng, U. Aspöck & Dobosz, sp. nov. from Afghanistan and Pakistan, and D. tengri Zheng, Badano, H. Aspöck & Liu, sp. nov. from Turkmenistan, Kyrgyzstan, and China, significantly expanding the known range of the genus. Morphological findings were further supported by species delimitation analyses of COI sequences, which helped identify specimens with atypical pigmentation patterns and confirmed the validity of both European species and the newly described D. tengri sp. nov.