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A revision of the genus Diceropyga Stål, 1870 (Homoptera, Cicadidae)
J. P. Duffels · Nederlandse Entomologische Vereniging
227 sayfa · 1977
Insects / Diceropyga / Classification
The cicadas of the Fiji, Samoa and Tonga Islands
J. P. Duffels, A. Ewart · E.J. Brill/Scandinavian Science Press
108 sayfa · 1988
Geographical distribution / Cicadas / Classification / Science/Mathematics / Homoptera
Taxonomy, phylogeny, and biogeography of the genus Cosmopsaltria
J. P. Duffels · Bishop Museum Press, Dept. of Entomology, Bishop Museum
127 sayfa · 1983
Cosmopsaltria / Insects / Cicada (Genus)