Davidson, R. H. (Ralph H.)

Person Info

Davidson, R. H. (Ralph H.)

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Publications
17
Records Collected
134
# of Collecting Events
47
Citation Publication Year PDF File
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
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
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
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
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