Hoplosaenidea abdominalis ( Jacoby, 1884 )

Bezděk, Jan, 2019, Taumacera revisited, with new synonyms, new combinations and a revised catalogue of the species (Coleoptera: Chrysomelidae: Galerucinae), Acta Entomologica Musei Nationalis Pragae (Acta. Ent. Mus. Natl. Pragae) 59 (1), pp. 23-52 : 46-47

Hoplosaenidea abdominalis ( Jacoby, 1884)

( Fig. 107 )

Macrima abdominalis Jacoby, 1884a: 60 (original description)

Oenidea nigriventris Allard, 1889b : cxvii (original description); MOHAMEDSAID (1997a):54 (synonymized with Hoplosaenidea abdominalis )

Platyxantha wallacei Jacoby,1895b:110 (original description), syn. nov.

Type material examined. Macrima abdominalis : SYNTYPE: 1♀, ‘Mesauw / 7.78 [w, h] // Macrima / abdominalis / Jac. [b, h]’ ( RMNH).

Oenidea nigriventris : SYNTYPES: 1 ♀, ‘M. R. Belg. [w, p] // Aenidea nigriventris / All. [w, h] // Jacoby Coll. / 1909-28a [w, p] // nigriventris All / CoType [w, h]’ ( BMNH); 1 ♀, ‘Restit 1885 [w, p] // M. R. Belg. [w, p] // Ex-Musaeo [p] / E. Allard [p] / 1899 [vertically, p, w]’ ( ISNB).

Platyxantha wallacei : HOLOTYPE: ♂, ‘Type / H. T. [white round label with red collar, p] // Sumat [h] / Wallace [w, p] // Jacoby Coll. / 1909-28a [w, p] // Platyxantha / Wallacei / Jac. / Type [b, h] // HOLOTYPE / Platyxantha / wallacei Jacoby, 1895 / J. Bezděk des. 2017 [r, p]’ ( BMNH).

Comments. Hoplosaenidea abdominalis was described by JACOBY (1884a) based on female specimens only, which was mentioned by JACOBY (1884b) when describing the males. The males are characterised by modified metatibiae which are flat and extended in the middle. I examined one of the female syntypes in the RMNH. The male specimen labelled as the type deposited in the MZC cannot be considered as a part of the type series as its label data refer to Serdang and thus belongs to the specimens published by JACOBY (1884b). Hoplosaenidea abdominalis is a species variable in colour as was already described by JACOBY (1892), having the elytra completely orange, completely black, or bicolorous with black basal and orange apical parts.

Platyxantha wallacei was completely overlooked by all subsequent authors and thus missing in all catalogues and publications. I examined the holotype (male, Fig. 107 ) deposited in the BMNH and it has the same structure of hind legs as is visible on the photographs of the male used by JACOBY (1884b) for the description of males of Hoplosaenidea abdominalis . The only difference is in the colouration of the elytra. The holotype of Platyxantha wallacei has completely black elytra but this is only a colour aberration and thus I synonymize Platyxantha wallacei with Hoplosaenidea abdominalis . The female specimen deposited in the MCZ and labelled as a type cannot be considered part of the type series as JACOBY (1895b) explicitely described Platyxantha wallacei from a single male specimen.

Figures

Figs 105–112. Habitus of species excluded from Taumacera. 105 – Fleutiauxia chinensis (Maulik, 1933) (male, syntype); 106 – F. chinensis (female, syntype of F. mutifrons Gressitt & Kimoto, 1963); 107 – Hoplosaenidea abdominalis (Jacoby, 1884) (male, holotype of Platyxantha wallacei Jacoby, 1895); 108 – Hoplosaenidea dohertyi (Jacoby, 1894) (female, syntype); 109 – Hyphaenia balyi (Jacoby, 1895) (female, lectotype); 110 – Pseudoscelida nigrolimbata (Jacoby, 1899) (male, syntype); 111 – Metrioidea grandis (Allard, 1889) (male, syntype of Platyxantha robusta Jacoby, 1895); 112 – Theopella bodjoensis (Duvivier, 1885) (female, syntype of Platyxantha quadraticollis Jacoby, 1896).