Porphyronota antoinei Perissinotto & Rojkoff, 2025, sp. nov.

Porphyronota antoinei sp. nov. (Figs 1, 2, 8) Diagnosis. The new species is most closely related to the recently described P. desfontainei Antoine, 1999, from which it differs in the following characters. Firstly, the dorsal chromatic habitus of P. antoinei is extremely variable, with forms ranging from completely ochreous with black mottling (cf. HT, Fig. 1), to exhibiting a black elytron but an ochreous pronotum and scutellum, to forms completely black (Fig. 2). Conversely, the currently known habitus of P. desfontainei is rather constant, completely ochreous-orange with black mottling across the entire surface but particularly extensive on the pronotum (Fig. 3). Secondly, the elytral surface of P. antoinei is more globose than that of P. desfontainei and its costae are rather flat and not convex like in the latter species. On the ventral side, the mesosternal lobe is significantly narrower in P. antoinei than in P. desfontainei, and the metasternal lobe is far less densely scultured with round punctures in the former than in the latter species (Figs 1 B and 3 B). Finally, in dorsal view the dorsal lobes of the aedeagal parameres are markedly expanded in the apical third in P. antoinei, while they are most constrained in P. desfontainei (Figs 1 F and 3 F). The apical portions of the ventral lobes are also expanded and end with right angles in P. antoinei, while in P. desfontainei these remain subparallel to end in a rather smoothly rounded apex.