Charidotis circumscripta Boheman, 1855

Sekerka, Lukáš, 2016, Taxonomic and nomenclatural changes in Cassidinae (Coleoptera: Chrysomelidae), Acta Entomologica Musei Nationalis Pragae 56 (1), pp. 275-344 : 291

Charidotis circumscripta Boheman, 1855

Charidotis circumscripta Boheman, 1855: 24 (original description).

Charidotis rubrocincta Boheman, 1855: 23 (original description), syn. nov.

Type localities. Charidotis circumscripta : ‘Brasilia’; C. rubrocincta : ‘Brasilia’.

Type material examined. Charidotis circumscripta : LECTOTYPE (designated by BOROWIEC 1999a):pinned, ‘ Brasil.[w, p, s] || Schneid. [w, p, s] || Type. [w, p, s] || LECTOTYPE | des. L. Borowiec [r, p, cb] || NHRS-SRAH | 000000552 [w, p, cb]’ ( NHRS) .

Charidotis rubrocincta : HOLOTYPE: pinned, ‘ Brasil [w, p, s] || Bhn. [w, p, s] || Type. [w, p, s] || NHRS-JLKB | 000021829 [w, p, cb]’ ( NHRS).

Remarks. BOHEMAN (1855) described C. rubrocincta based on a dark coloured specimen with explanate margins and a reddish-brown ventral surface. The colouration was the only character used to separate this taxon from C. circumscripta , as other characters are identical in both descriptions. Types of both taxa have the same size, punctation and convexity of elytra, proportion of antennae and differ only in colouration of pale parts, which are yellow in C. circumscripta and reddish-brown in the other specimens of C. rubrocincta . The latter taxon is known only from the holotype while C. circumscripta is a relatively common species in eastern Brazil and I attribute the colouration of C. rubrocincta to a preservation artefact. Since both taxa were described in the same publication I followed the Principle of the first reviser ( ICZN 1999: Article 24.2) and chose C. circumscripta as the valid name for this species, as it was correctly applied and used in literature until recently.

Distribution. Brazil: Mato Grosso, Paraná ( BOROWIEC 1996), Rio de Janeiro ( BOHEMAN 1855; BOROWIEC 1996, 2002, 2009c).