Revision of the genus Pilemostoma Desbroches, 1891 (Coleoptera: Chrysomelidae: Cassidinae: Cassidini) Author Sekerka, Lukáš text Zootaxa 2008 1859 40 48 journal article 10.5281/zenodo.274450 e7db11e0-1086-407a-b029-a0cc06e11b2f 1175-5326 274450 Pilemostoma Desbroches, 1891 Cassida sg. Pilemostoma Desbrochers (1891) : 14 ( type species: Cassida fastuosa Schaller, 1783 , by monotypy); Hincks (1952) : 339 ; Seeno and Wilcox (1982) : 177 . Pilemostoma : Spaeth (1914b) : 89; Spaeth and Reitter (1926) : 20 ; Borowiec (1999) : 314 . Glyphocassis Spaeth, 1914 is a genus very close to Pilemostoma . Both genera have similar body shape and elytral pattern. Glyphocassis is divided into two subgenera: the nominotypical subgenus with one species and Hebdomecosta Spaeth, 1915 with two species. The nominotypical subgenus shares many characters with Pilemostoma : deep antennal grooves, marginalia forming gutter, tarsal claws toothed basally and elongate. It differs in having an elongate prosternal collar with angulate sides (short and without angulation in Pilemostoma ); an antennal groove bordered externally by a sharp carina (by an obtuse carina in Pilemostoma ) and a marginalia of pronotum and elytra impunctate (punctate in Pilemostoma ). Both genera are also separated geographically: Glyphocassis s. str. occurs in S China , NE India , and Indochina, while Pilemostoma is known exclusively from the Palaearctis. Hebdomecosta is Palaearctic like Pilemostoma but differs in simple tarsal claws; short, circular body and impunctate marginalia. Both genera also have different feeding habits. Glyphocassis feeds exclusively on Convolvulaceae ( Kalaichelvan et al. 2004 ; Lee & Cho 2006 ) while Pilemostoma is associated with Asteraceae ( Brovdij 1983 ; Sekerka 2006 ). Based on the characters mentioned above I treat Pilemostoma as an independent genus close to Glyphocassis .