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      A review of the genus Lankaphthona Medvedev, 2001, with comments on the modified phallobase and the unique abdominal appendage of L. binotata (Baly) (Coleoptera, Chrysomelidae, Galerucinae, Alticini)

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          Abstract

          The flea beetle genus Lankaphthona Medvedev, 2001 is redescribed and a new species L.yunnantarsella sp. nov. Ruan, Konstantinov & Prathapan is described. Longitarsella Medvedev, 2009, syn. nov. and Philotarsa Medvedev, 2009, syn. nov. are newly synonymized with Lankaphthona. Philotarsalaosica Medvedev, 2009, syn. nov. is synonymized with Lankaphthonaphuketensis (Gruev, 1989). The following new combinations are proposed: Lankaphthonabinotata (Baly, 1876), comb. nov.; Lankaphthonacostata (Medvedev, 2016), comb. nov.; Lankaphthonacyanipennis (Medvedev, 2017), comb. nov.; Lankaphthonanigronotata (Jacoby, 1896), comb. nov.; Lankaphthonanotatipennis (Medvedev, 2009), comb. nov.; and Lankaphthonaphuketensis (Gruev, 1989), comb. nov., status restored. A highly specialized spoon-shaped ‘appendage’ is discovered on the first abdominal ventrite of males of Lankaphthonabinotata. Aedeagus of the same species has aberrant sheath-shaped phallobase encircling the median lobe. Morphology and possible function of these structures are discussed. Menispermaceae are newly reported as the host plants of the genus.

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          Most cited references 13

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          XI. The comparative anatomy of the male genital tube in Coleoptera.

           D. Sharp,  F. Muir (1912)
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            Genus-group names of Afrotropical flea beetles (Coleoptera: Chrysomelidae: Alticinae): Annotated catalogue and biogeographical notes

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              Secondary Sexual Characteristics in the Galerucinae (Sensu Stricto) (Coleoptera: Chrysomelidae)

              A list of 1298 species and 172 genera of Chrysomelidae from the subfamily Galerucinae ( sensu stricto ) with the males having at least one form of secondary sexual characteristic (SSC) is presented. The number of species amounts to 24% of the total Galerucinae presently known from all over the world—a very significant amount. The SSCs comprise various types of modified structures found on all parts of the body—head, thorax, and abdomen. They are not variable but species specific. Illustrations from selected 87 species that include 84 images and 15 line drawings showing various types of SSC are provided. The amazing array of SSCs from the Galerucinae offers a large and taxonomically diverse set of data that are not comparable with other subfamilies in the Chrysomelidae and may be useful in phylogenetic analysis of the family.
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                Author and article information

                Journal
                ZooKeys
                ZK
                Pensoft Publishers
                1313-2970
                1313-2989
                June 25 2019
                June 25 2019
                : 857
                : 29-58
                Article
                10.3897/zookeys.857.34465
                6606673
                31303804
                © 2019

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