Davidson, R. H. (Ralph H.)

Person Info

Davidson, R. H. (Ralph H.)

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Publications
17
Records Collected
133
# of Collecting Events
46
Citation Publication Year PDF File
Davidson R. H., DeLong D. M. 1935; A review of the North American species of Balclutha and Agellus (Homoptera: Cicadellidae). Proceedings of the Entomological Society of Washington. 27:97-112 1935
Davidson R. H., DeLong D. M. 1938; Studies of the genus Empoasca (Homoptera: Cicadellidae). Part V. Twelve new species of Empoasca from the United States. Ohio Journal of Science. 38:90-97 1938
Davidson R. H., DeLong D. M. 1939; Studies of the genus Empoasca (Homoptera: Cicadellidae). Part VI. Twenty-two new species of Empoasca from North America. Ohio Journal of Science. 39(2):110-118 1939
Davidson R. H., DeLong D. M. 1940; Studies of the genus Empoasca (Homoptera: Cicadellidae). Part VII. Six new species of Empoasca from Mexico. Annals of the Entomological Society of America. 33:608-611 1940
Davidson R. H., DeLong D. M. 1942; Studies of the genus Empoasca (Homoptera: Cicadellidae). Part VIII. Six new species of Empoasca from southwestern United States, Mexico and Chile. Annals of the Entomological Society of America. 35:105-109 1942
Davidson R. H., DeLong D. M. 1942; Studies of the genus Empoasca (Homoptera, Cicadellidae). Part IX. Some new species of Empoasca from Southwestern United States and Mexico. Ohio Journal of Science. 42(3):123-126 1942
Davidson R. H., DeLong D. M. 1943; Studies of the genus Empoasca (Homoptera: Cicadellidae). Part X. Fourteen new species of Empoasca from Mexico. Ohio Journal of Science. 43:214-220 1943
Davidson R. H., DeLong D. M. 1943; Studies of the genus Empoasca (Homoptera: Cicadellidae). Part XI. Six new species of Empoasca from Mexico. Annals of the Entomological Society of America. 36:636-640 1943
Davidson R. H., Frazier N. W. 1949; A new species of Draeculacephala from California (Homoptera: Cicadellidae). Ohio Journal of Science. 49:127-128 1949
DeLong D. M., Davidson R. H. 1933; The genus Agellus gen. nov. (Homoptera: Cicadellidae). Ohio Journal of Science. 33:210-210 1933
DeLong D. M., Davidson R. H. 1933; Some new species of Eugnathodus (Homoptera: Cicadellidae). Ohio Journal of Science. 33:55-58 1933
DeLong D. M., Davidson R. H. 1934; Some new species of Cicadellidae (Homoptera) from the United States. Journal of the New York Entomological Society. 42:221-224 1934
DeLong D. M., Davidson R. H. 1934; A new species of Typhlocyba (Homoptera: Cicadellidae) injurious to prune in the Pacific Northwest. Ohio Journal of Science. 34:161-162 1934
DeLong D. M., Davidson R. H. 1935; Some new North American species of deltocephaloid leafhoppers. The Canadian Entomologist. 67:164-172 1935
DeLong D. M., Davidson R. H. 1935; Further studies of the genus Empoasca (Homoptera: Cicadellidae). Part III. Seventeen new species of Empoasca from the United States and Canada. Ohio Journal of Science. 35:29-39 1935
DeLong D. M., Davidson R. H. 1936; Further studies of the genus Empoasca (Homoptera: Cicadellidae). Part IV. Eleven new species of Empoasca from the United States. Ohio Journal of Science. 36:225-230 1936
DeLong D. M., Davidson R. H. 1943; Description of the neotype of Draeculacephala mollipes (Say) and a new species previously confused with it (Homoptera, Cicadellidae). Ohio Journal of Science. 43:193-194 1943