AN ANNOTATED LIST OF GENERIC NAMES OF THE COCCOIDEA 59 



concluded that Diaspidiotus should be credited to Berlese, 1896, and that 

 patavinus Berlese, 1896, —A. pyri Lichtenstein, 1881, is its type-species. Cur- 

 rent publications on aspidiotine coccids generally recognize Diaspidiotus, based 

 on Diaspis ancylus Putnam, 1877, as type-species, as a zoologically valid coccid 

 segregate, generically separated from related forms and especially from Quad- 

 raspidiotus MacGillivray, 1921, which had Aspidiotus ostreaeformis Curtis, 1843, 

 designated as its type-species. 



We believe that the zoological distinction between Diaspidiotus and Quad- 

 raspidiotus, as they are now constituted (i.e., each with the type-species indicated 

 and each with numerous included species), can be maintained on present knowl- 

 edge only with considerable uncertainty. In our view much more critical study of 

 included species would be needed to confirm the zoological separation of these two 

 generic units. If patavinus is accepted as type-species of Diaspidiotus, then 

 Quadraspidiotus clearly becomes a synonym of it. Such synonymy was indicated 

 by Borchsenius, 1950b : 224. Perhaps this synonymy is valid zoologically as well, 

 even if the currently accepted concept of Diaspidiotus rests on the occurrence of 

 a reduced number of pygidial marginal lobes as compared with Quadraspidiotus. 

 We conclude that a rigid conformity to the applicable Articles of the 1961 Code 

 will disrupt the zoological standards for the genus Diaspidiotus that were estab- 

 lished in 1897 and 1898 and that are currently accepted by many active students 

 of the Coccoidea. We further conclude that, in the interest of stability, the genus 

 can best stand as Diaspidiotus Berlese and Leonardi 1897, 1898, with type-species 

 Diaspis ancylus Putnam, 1877, by designation of Leonardi, 1898a : 50 [210]. 



Diaspidistus Hempel, 1900, [Sao Paulo] Rev. Mus. Paulista 4 : 497, 

 522. 



type-species : Diaspidistus mvltilobis Hempel, 1900, by original designation 

 and monotypy. 



Its describer keyed this genus to a relationship with Diaspis Costa. Cockerell, 

 1902p: 257, suggested a close affinity with Pseudoparlatoria Cockerell. Lin- 

 dinger, 1937 : 183, said : "=Pseudoparlatoria Ckll." 



Diaspidopus Brimblecombe, 1959, Queensland Jour. Agr. Sci. 16 : 129. 



type-species : Diaspidopus distinctus Brimblecombe, by original designa- 

 tion and monotypy. 



The describer suggested a relationship to Pseudotargionia Lindinger for this 



Diaspis O. G. Costa, 1828, Prospetto di Una Nuova Divisione Meto- 

 dica del Genere Coccus, Lin. Lam. EC. Napoli, Dalla Tipografia 

 Trani, pp. 6-7, nomen nudum; 1835, Fauna del Begno di Xapoli, 

 Famiglia de' Coccinigliferi, o de' Gallinsetti. Emitteri Xapoli, p. 19. 



type-species: (Diaspis calyptroides Costa, 1835) = Aspidiotus echinocactus 

 Bouche, 1833, by subsequent designation of Cockerell, 1902d : 58. 



While Diaspis was first proposed by Costa in 1828, he did not include in it at 

 that time any definitely named species. Therefore it did not acquire status until 

 its appearance in his coccid Fauna of Naples paper, of uncertain date, but here 

 accepted as 1835 (see footnote under Calimmata Costa). Costa set no type- 

 species for his genera. Targioni-Tozzetti, 1867: 9, stated that the type-species 

 for this genus was Coccus aonidum, or a form that has been confused with 



208-496—66 5 



