Redescription and Additional Records of Arthurella Albuquerque (Diptera: Muscidae: Cyrtoneurininae)

摘要

Arthurella (Diptera, Muscidae) is known only from a single species from Chile, A. nudiseta Albuquerque. The genus is rare in collections being known previously from only a few specimens. It is placed among the Cyrtoneurininae but its monophyly has not yet been established. The specimens of A. nudiseta found in the California Academy of Sciences collection (San Francisco, California) make possible the observation of different color patterns and sizes, as well as the expansion of the known geographical distribution. Color figures showing patterns of mesothoracic dorsum, pleurae and abdomen are given.