American two-winged flies of the genus Microphthalma Macquart, with notes on related forms
Published in Proceedings of The United States National Museum, in 1926, in volume 69, issue 2639, pages 1-8
Date published:1926
Published in Proceedings of The United States National Museum, in 1926, in volume 69, issue 2639, pages 1-8
Date published:1926