Person Info

R. H. Davidson (Ralph H.)

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Publications
17
Records Collected
131
# of Collecting Events
45
Title Author Publication Year PDF File
A review of the North American species of Balclutha and Agellus (Homoptera: Cicadellidae). 1935-08-01
Studies of the genus Empoasca (Homoptera: Cicadellidae). Part VI. Twenty-two new species of Empoasca from North America. 1939-08-01
A new species of Draeculacephala from California (Homoptera: Cicadellidae). 1949-08-01
Studies of the genus Empoasca (Homoptera: Cicadellidae). Part VII. Six new species of Empoasca from Mexico. 1940-08-01
Studies of the genus Empoasca (Homoptera: Cicadellidae). Part V. Twelve new species of Empoasca from the United States. 1938-08-01
Studies of the genus Empoasca (Homoptera: Cicadellidae). Part VIII. Six new species of Empoasca from southwestern United States, Mexico and Chile. 1942-08-01
Studies of the genus Empoasca (Homoptera: Cicadellidae). Part X. Fourteen new species of Empoasca from Mexico. 1943-08-01
Studies of the genus Empoasca (Homoptera, Cicadellidae). Part IX. Some new species of Empoasca from Southwestern United States and Mexico. 1942-08-01
Studies of the genus Empoasca (Homoptera: Cicadellidae). Part XI. Six new species of Empoasca from Mexico. 1943-08-01
Some new species of Cicadellidae (Homoptera) from the United States. 1934-08-01
Some new North American species of deltocephaloid leafhoppers. 1935-08-01
Further studies of the genus Empoasca (Homoptera: Cicadellidae). Part III. Seventeen new species of Empoasca from the United States and Canada. 1935-08-01
Further studies of the genus Empoasca (Homoptera: Cicadellidae). Part IV. Eleven new species of Empoasca from the United States. 1936-04-01
The genus Agellus gen. nov. (Homoptera: Cicadellidae). 1933-08-01
A new species of Typhlocyba (Homoptera: Cicadellidae) injurious to prune in the Pacific Northwest. 1934-08-01
Description of the neotype of Draeculacephala mollipes (Say) and a new species previously confused with it (Homoptera, Cicadellidae). 1943-02-01
Some new species of Eugnathodus (Homoptera: Cicadellidae). 1933-08-01