Valid Names Results

Comstockaspis MacGillivray, 1921 (Diaspididae)

Comstockaspis MacGillivray 1921: 391. Type species: Quadraspidiotus perniciosus Comstock . accepted valid name
Comstockiaspis Chou 1985: 310;. . misspelling of genus name

Systematics: Ferris (1937a) synonomized Comstockaspis with Diaspidiotus. Takagi (1974) revived Comstockaspis He regarded Abgrallaspis, Quadraspidiotus, and Diaspidiotus as synonyms of Hemiberlesia, but he regarded Comstockaspis as a separate genus. Takagi's opinion has received detailed support from molecular phylogenetic studies, showing that, C. perniciosa, the type species of Comstockaspis, is indeed only distantly related to the clade that includes the species of Diaspidiotus and Hemiberlesia (Andersen et al. 2010) 2010). Comstockaspis is distinguishable by the presence of a paraphysis-like sclerotization at the base of the medial margin of L1, and by the robust medial paraphysis in the second space (laterad of L2).
Structure: Pygidium rounded, with 2 pairs of lobes (L1 and L2); third lobes (L3) reduced. Bifurcate plates present between L1 & L2, L2 & L3, and lateral to L3. Dorsal ducts 1-barred: with 1 between L1 and in submarginal zones of abdominal segments V–VII; ducts absent from segments I–IV. Perivulvar pores absent. Ventral microducts scattered on thorax and submarginal zone of abdominal segments. (Moghaddam & Watson, 2020)
General Remarks: Description and characters in MacGillvray (1921).