Western distribution area of Campylomorphus homalisinus. Red colour signs administrative regions of Spain, Portuguese ones are in orange. Blue points sign occurrences of C. homalisinus according to literature, databases and museums collections. Administrative provinces of occurrence are Oviedo, Lugo, A Coruña, Orense, Pontevedra (Spain) and Viana do Castelo, Braga, Vila Real, Lisboa, Guarda, Coimbra, Aveiro (Portugal).