Tuleara sakalava ( de Saussure, 1890 ), 2025

Tuleara sakalava ( de Saussure, 1890) , comb. nov.

( Figs 58A View FIGURE 58 , 66F View FIGURE 66 )

Odynerus sakalavus de Saussure, 1890: 161 , 169, pl. XXII fig. 4, ♀ —[ Madagascar] “ Nosibé ” (female holotype?ZMUH).

Distribution. Madagascar: Antsiranana ( de Saussure 1890; Gusenleitner 2011) ( Fig. 66F View FIGURE 66 ).

Genus Zethus Fabricius, 1804

Zethus Fabricius, 1804 View in CoL : xii, 282, genus (6 species). Type species: “ Zethus coeruleo-pennis Fab. View in CoL ” [= Vespa coeruleopennis Fabricius, 1798 ], by subsequent designation of Latreille (1810: 328, 438).

Heros de Saussure, 1855: 115 View in CoL , division of genus Zethus Fabricius. View in CoL Type species: Zethus gigas Spinola, 1841 View in CoL [= Vespa coeruleopennis Fabricius, 1798 ], by monotypy. Junior subjective synonym of Zethus Fabricius, 1804 View in CoL according to Bohart & Stange (1965: 25).

Euzethus Dalla Torre, 1904: 14 , name for division I of genus Zethus in de Saussure (1852: 9) View in CoL (11 species). Type species. Vespa coeruleopennis Fabricius, 1798 , by subsequent designation of van der Vecht & Carpenter (1990: 24). Junior objective synonym of Zethus Fabricius, 1804 View in CoL .

Key to the Malagasy species of Zethus View in CoL

1. T1 fusiform, sides distinctly concave in apical half ( Fig. 58B View FIGURE 58 ). Propodeum entirely punctate. Male: clypeus subquadrate, about as long as wide, and densely punctate, interspaces at most equal to puncture diameter ( Fig. 58B View FIGURE 58 ); apical margin of clypeus subtruncate in the middle; F11 nearly straight in lateral view ( Fig. 58B View FIGURE 58 )................. Z. madecassus (von Schulthess) View in CoL

- T1 bottle-shaped, sides straight in posterior half ( Fig. 58C View FIGURE 58 ). Propodeum with short but strong transverse striae around median carina, punctate on the rest of the surface. Male: clypeus transverse, distinctly wider than long, and sparsely punctate, interspaces wider than puncture diameter ( Fig. 58C View FIGURE 58 ); apical margin of clypeus weakly but distinctly concave; F11 distinctly curved in lateral view ( Fig. 58C View FIGURE 58 ).............................................................. Z. seyrigi Giordani Soika View in CoL