Key to Afrotropical species of Diaparsis with white-banded flagellum
1. Flagellum with a conspicuous white band (Figs 1, 2).......................................................... 2
- Flagellum without a white band, pale basally and gradually darkening towards apex, or more or less entirely brown or black....................................................................................................... Other species of the genus (see Khalaim 2013a and the description of D. umbrosa Khalaim & Sääksjärvi, sp. nov. in the present paper).
2. Flagellum very slender, subbasal flagellomeres 3.5× as long as broad (Fig. 1). Foveate groove of mesopleuron absent (Fig. 6). Flagellum with a white band near its middle, 13 apical flagellomeres black (Fig. 5).................................................................................................... kanyawara Khalaim & Sääksjärvi, sp. nov.
- Flagellum not especially slender, subbasal flagellomeres 1.2–1.5× as long as broad. Foveate groove of mesopleuron well developed. Flagellum with a white band far behind its middle, 1 to 7 apical flagellomeres black....................... 3
3. Head with temple, in dorsal view, 0.4× as long as eye width (Khalaim 2013b: Fig. 7). Propodeum with basal keel as long as apical area (Khalaim 2013b: Fig. 9). Ovipositor sheath distinctly shorter than first tergite.............................................................................................................. nebulosa Khalaim, 2013
- Head with temple, in dorsal view, 0.5–0.6× as long as eye width. Propodeum with basal keel 0.5–0.7× as long as apical area. Ovipositor sheath much longer, 1.8–3.2× as long as first tergite................................................. 4
4. Three subapical flagellomeres black (Fig. 11). Malar space 0.9× as long as basal width of mandible (Fig. 9). Propodeum with basal keel obliterated. Fore wing with second recurrent vein distinctly postfurcal. Ovipositor distinctly sinuate apically, sheath 3.2× as long as first tergite (Fig. 13)....................................... sinuator Khalaim & Sääksjärvi, sp. nov.
- Seven subapical flagellomeres black (Khalaim 2013a: Fig. 16). Malar space 0.4× as long as basal width of mandible. Propodeum with distinct basal keel (Khalaim 2013a: Fig. 20). Fore wing with second recurrent vein interstitial (Khalaim 2013a: Fig. 19). Ovipositor not sinuate apically, sheath 1.8× as long as first tergite (Khalaim 2013a: Fig. 15)..................................................................................................... interstitialis Khalaim, 2013