Rhagiosoma chapuisi, Sekerka, 2007

Sekerka, Lukáš, 2007, On the genus Rhagiosoma and the identity of R. madagascariense (Coleoptera: Chrysomelidae: Sagrinae: Megamerini), Acta Entomologica Musei Nationalis Pragae 47, pp. 195-202 : 197-198

Rhagiosoma chapuisi nom. nov.

( Figs. 2 a-c)

Rhagiosoma madagascariense Chapuis, 1878 : cxliv (nec Mecynodera madagascariensis Heyden, 1877 ). Megamerus madagascariensis: MONRÓS (1956) : 107, MONRÓS (1958): 5.

Type locality. ‘Madagascar’.

Type material. LECTOTYPE (designated here): J, ‘Coll.et.detrm. / Dr.Chapuis [w, p, bb, h] // Coll. Chapuis [w, p, s] // 1590 [w, p, s] // Madagascar [violet, p, s] // Type [w, p, s] // Coll. R. I. Sc. N. B. [blue, p, h; preceding two labels glued on this label] // TYPE [red, p, bb, h]’ ( IRSN). PARALECTOTYPES: J, ‘Coll.et.detrm. / Dr.Chapuis [w, p, bb, h] // Coll. Chapuis [w, p, s] // 1592 [w, p, s] // Madagascar [violet, p, s] // M.R.Belg. [w, p, s] // Coll. R. I. Sc. N. B. [blue, p, h; preceding two labels glued on this label] // Para- / type [orange, p, bb, h]’ ( IRSN); J, ‘Coll.et.detrm. / Dr.Chapuis [w, p, bb, h] // v. Krogh [w, hw, bb, s] // Coll. Chapuis [w, p, s] // 1590 [w, p, s] // Madagascar [violet, p, s] // M.R.Belg. [w, p, s] // Coll. R. I. Sc. N. B. [blue, p, h; preceding two labels glued on this label] // Para- / type [orange, p, bb, h]’ ( IRSN); ♀, ‘Coll.et.detrm. / Dr.Chapuis [w, p, bb, h] // Coll. Chapuis [w, p, s] // Madagascar [violet, p, s] // Type. [w, p, s] // Coll. R. I. Sc. N. B. [blue, p, h; preceding two labels glued on this label] // Allo- / TYPE [red, p, bb, h, first row hw]’ ( IRSN); J, ‘TYPE [red, p, bb, h] // TYPE [r, p, h] // MUSÉE DU CONGO / Madagascar / Coll. Clavareau [w, p, h, middle row hw] // Madagascar / Coll. Chapuis [w, hw, h] // Rhagiosoma / madagascariense / TYPE Chp. [w, hw, h] // R. DÉT. / C / 1795 [w, p, h, middle row hw] // J [w, p, h]’ ( MRAC). The specimens are provided with the following label: ‘ LECTOTYPUS [or PARALECTOTYPUS] / Rhagiosoma / madagascariense / Chapuis, 1878 / L. Sekerka des. 2006 [red, p, bb, h]’.

Distribution. Madagascar.

Comments. Based on the examination of the type material, Mecynodera madagascariensis fully corresponds with the generic characters of Rhagiosoma , and I propose a new combination, R. madagascariense ( Heyden, 1877) , comb. nov. Thus, R. madagascariense Chapuis, 1878 , nec Heyden, 1877, becomes its junior secondary homonym. Rhagiosoma chapuisi nom. nov. is proposed here as a new substitute name for R. madagascariense Chapuis, 1878 , nec Heyden, 1877.

I found constant differences between R. madagascariense and R. chapuisi nom. nov. based on the study of the type material. Differential diagnosis and additional comments are given under R. madagascariense .

Figures

Figs. 1-3. 1 – Megamerus kingi MacLeay, 1827; 2 – Rhagiosoma madagascariense (Heyden, 1877); 3 – R. chapuisi nom. nov.; a – aedeagus, dorsal view; b – aedeagus, lateral view; c – parameres, dorsal view.