Macedomeris Antić, 2021

Antić, Dragan Ž. & Makarov, Slobodan E., 2021, Macedomeris, a new monotypic doderiinine genus (Diplopoda, Glomerida) from a cave in North Macedonia, Balkan Peninsula, Zootaxa 4908 (3), pp. 393-408 : 394

Genus Macedomeris Antić , new genus

Etymology. The new genus is named for its terra typica, North Macedonia, with the addition of the suffix - meris, which is commonly used in the order Glomerida . The name is a feminine noun.

Diagnosis. The new genus is clearly distinguished from all other genera of the order Glomerida , with the exception of Trachysphaera , Epiromeris and Tectosphaera Mauriès, 2005 , by the presence of a characteristic deep lateral pit (“Ohrgrube”) on both sides of the thoracic shield (e.g. Fig. 5F, H ). Macedomeris gen. nov. differs from Trachysphaera by the absence of striking ornamentation on tergites (vs. present in Trachysphaera ); from Epiromeris and Tectosphaera by tergite 11 and the anal shield being fused and lacking a large medial hump/protrusion (vs. tergite 11 not fused with the anal shield and featuring a very conspicuous medial hump/protrusion on tergite 11 in Epiromeris and Tectosphaera ). In addition, Macedomeris gen. nov. differs from other Glomerida by its general appearance, the presence of 2 or 3 vestigial ommatidia and a very wide syncoxite of a 2-segmented leg-pair 17 in the male.

Type species: Macedomeris ivoi Antić sp. nov., by present designation and monotipy.

Description. See below.

Figures

FIGURE 5. Macedomeris ivoi gen. et sp. nov. (IZB) A. Paratype subadult male, habitus, lateral view. B. Paratype female I, head, anterior view. C. Paratype female I, head and thoracic shield, anterolateral view. D. Paratype male, collum, dorsal view. E. Holotype male, collum, dorsal view. F. Paratype female I, thoracic shield, left lateral view. G. Paratype female II, right side of the head, anterior view. H. Paratype female II, left thoracic pit, lateral view. I. Holotype male, anal shield, posterior view. Abbreviations: as: anal shield; c: collum; to: organ of Tömösváry; ts: thoracic shield; r1, r2, r3: ridges on collum and thoracic shield; r2a, r2b: parts of thoracic r2; the numbers indicate tergites. White arrows indicate sclerotized nodules in C or vestigial ommatidia in G. Scale bars: 0.5 mm (A–F, H, I), 0.1 mm (G).