Catalogue of Papilionoidea from Noguera de Albarracín (Teruel, Spain), including new distributional data for the Sierra de Albarracín (Insecta: Lepidoptera)

We present a catalogue of butterflies from Noguera de Albarracín (Teruel, Spain), based on field surveys conducted in 2024 and 2025 within the framework of the Iberozoa Entomology Course. A total of 52 species were recorded, representing 20.15% of the Iberian butterfly fauna. The material belongs to 5 families, 13 subfamilies, 33 genera and 52 species. Lycaenidae was the richest family with 16 species, followed by Nymphalidae (15), Pieridae (12), Hesperiidae (8) and Papilionidae (1). Several taxa of conservation interest were detected, including the Iberian endemics Iolana debilitata, Lycaena bleusei and Polyommatus nivescens. Threatened species such as Scolitantides orion and Euphydryas aurinia were also recorded, the latter listed in Annex II of the EU Habitats Directive. Additionally, the occurrence of Boloria dia represents the southwesternmost distributional record of the species in the Iberian Peninsula. This study highlights the importance of the Sierra de Albarracín as a refuge for Iberian butterfly diversity, including rare and endemic taxa, and provides baseline data for future conservation and monitoring programmes.