Francis Walker types of Trichoptera in the British Museum, re-described and figured by Cornelius Betten and Martin E. Mosely.
Contributors: Mosely, Martin Ephraim,; British Museum (Natural History)
Publisher: Printed by order of Trustees of the British Museum
Published: 1940
Place of publication: London
Language: eng
Number of pages: 248
Subjects: Walker, Francis, -- 1809-1874; Caddisflies.