Nitela, Latreille, 1809

Schmid-Egger, Christian & Harten, Antonius Van, 2022, Additions to the digger wasps (Hymenoptera, Spheciformes) of the United Arab Emirates with description of ten new species, Zootaxa 5219 (6), pp. 543-575 : 562

Key to the genus Nitela of the Arabian Peninsula, females and males

1 Clypeus roof-like, with median keel along whole length ( Fig. 88 ). Clypeus and lower face covered with dense, silver pilosity, microsculptured. Mesonotum with dense fine punctation and fine striae in beetween (punctures 0.5-1.0 diameter apart). Hypoepimeral area finely microsculptured. Male: Clypeus medio-apically with 3 teeth, lateral teeth directed laterally. AS 3 as long as or somewhat shorter than AS 2........................................... Nitela feltoni Gayubo & Schmid-Egger

2 Clypeus flat in female, in male convex, shiny, without keel. Clypeus and lower face covered with sparse pilosity or without pilosity. Mesonotum with large shiny interspaces, punctures in medial part 2-3 diameters apart. Hypoepimeral area shiny. Male: Medial part of apical clypeal margin with rounded corners. AS 3 longer as AS 2.... Nitela arabica Gayubo & Schmid-Egger

Figures

FIGURES 81–88. 81–86. Gastrosericus waltlii; 81. ♀ from Yemen, lateral view. 82. ♀ from Yemen, face. 83. ♀ from Yemen, clypeus. 84. ♁ from Morocco, lateral view. 85. ♁ from Morocco, forewing. 86. ♁ from Morocco, sterna. 87–88. Nitela feltoni ♁; 87. lateral view. 88. Face.