The Francis Walker types of Trichoptera in the British museum
Betten, Cornelius
The Francis Walker types of Trichoptera in the British museum re-described and figured by Cornelius Betten and Martin E. Mosely - London Printed by order of the Trustees of the British museum 1940 - ix, 248 p. front. 26 cm. port. illus.
At head of title: British museum (Natural history).
Caddisflies
Insecta (Sistematica - Ordens Menores)
595.745 B 565 F
The Francis Walker types of Trichoptera in the British museum re-described and figured by Cornelius Betten and Martin E. Mosely - London Printed by order of the Trustees of the British museum 1940 - ix, 248 p. front. 26 cm. port. illus.
At head of title: British museum (Natural history).
Caddisflies
Insecta (Sistematica - Ordens Menores)
595.745 B 565 F