A systematic study of Peliococcus Borchsenius (Hemiptera: Coccoidea: Pseudococcidae), with descriptions of a new Palaearctic genus and four new species from Turkey

Zootaxa
Mehmet Bora Kaydan

Abstract

Within the Phenacoccinae (Hemiptera: Coccoidea: Pseudococcidae), there are four nominal genera that include species with clusters or groups of multilocular disc pores and/or oral collar tubular ducts of more than one size, namely Peliococcus Borchsenius (= Spinococcus Borchsenius and Eupeliococcus Săvescu), Peliococcopsis Borchsenius, Erimococcus Ezzat, and Seyneria Goux. This study analysed molecular data (from the mitochondrial gene cytochrome oxidase I, COI, and a fragment of the D<sub>2</sub> and D<sub>3</sub> regions of the large subunit ribosomal DNA gene, 28S) from Palaearctic species of Peliococcus, Peliococcopsis and a new genus, Pelionella Kaydan to demonstrate: (i) that Peliococcus and several morphologically similar genera do not form a monophyletic group; (ii) Peliococcus, as currently understood, is not monophyletic, and (iii) the structure of the multilocular disc pores is important for recognising the systematic position of these genera. The morphological data were fitted to the molecular tree to allow reassessment of the generic classification and to produce morphological diagnoses of the genera. Five species have been moved to the genus Erimococcus Ezzat: Peliococcus kimmericus Kiritchenko, P. montanus Bazarov...Continue Reading

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