Walkeriana Signoret, 1876

Gavrilov-Zimin, Ilya A., 2021, New and poorly known giant scale insects (Homoptera: Coccinea: Margarodidae s. lat.) from the Oriental region with taxonomic and nomenclatural notes on the subfamily Monophlebinae, European Journal of Taxonomy 746 (1), pp. 50-61 : 58

Genus Walkeriana Signoret, 1876

Remarks

Morrison (1928: 143) noted the presence of large bitubular glands in the adult female of Walkeriana florigera (Walker, 1858) , the type species of the genus, but he did not illustrated such glands in the appropriate figure (in contrast to all other described morphological structures). Green (1922), describing the same species, didn’t mention such glands in the adult female. However, these glands are present in primolarvae of W. florigera , according to the descriptions and figures of both authors. According to Green (1922), also the other species of Walkeriana do not have bitubular glands in adult female stage, but only in larvae. Thus, the note of Morrison (l.c.) about the presence of glands in the adult female was probably a mistake. This possible mistake was also reproduced in the key to the genera of Labioproctini ( Gavrilov-Zimin 2018: 165). To avoid any misunderstanding in the future, a slightly corrected key to the genera of the tribe is provided here.