Vrydagh (1942) variously treated the form nigrescens named by him as melanistic mutation, separate species, or hybrid between D. nigrofasciatus and D. melanoderes Karsch.
%LABEL% (%SOURCE%)
Vrydagh (1942) variously treated the form nigrescens named by him as melanistic mutation, separate species, or hybrid between D. nigrofasciatus and D. melanoderes Karsch.
%LABEL% (%SOURCE%)