Key to the females of Palaearctic species of Misetus

(modified from Selfa and Diller 1995. Females of M. nigritulus Kolarov, 1985 and M. tyloidalis Kolarov, 1985 are unknown).

1 Metasoma with apical tergites apically strongly concave....................................................... 2

- Metasoma with apical tergites apically weakly concave (as in Fig. 12)............................................ 3

2 Metasoma with tergites III–VII concave apically. Occipital carina meeting hypostomal carina near the base of mandible. Propodeum with area basalis not delimited. Middle field of postpetiole punctate. Flagellum with 31–33 segments. Hind tibia completely blackish-brown...................................................... M. borealis Kusigemati, 1974

- Metasoma with tergites V–VII concave. Occipital carina meeting hypostomal carina far from the base of mandible. Propodeum with area basalis delimited. Middle field of postpetiole strigose. Flagellum with 27 segments. Hind tibia mostly red......................................................................................... M. nordicator Selfa, 1995

3 Tergite II coriaceous-rugose on the basal 2/3, the remaining part of the tergite with a weak trace of coriaceous sculpture (Fig. 11). Postpetiole apically with punctures and rugae. Clypeus with apical medial tooth strong (Fig. 10). Scutellum red or red and more or less yellow marked (Fig. 11). Hind femur completely red; hind coxa red. Metasoma extensively red, sometimes with apical tergites brownish-black (Fig. 9)............................................... M. oculatus Wesmael, 1845

- Tergite II coriaceous-strigose only basally.................................................................. 4

4 Clypeus with apical median tooth visible in frontal view (Fig. 14). Postpetiole strongly punctate and less striated apically. Tergite II basally strigose (Fig. 16). Propodeum with area superomedia subpentagonal, anterior transverse carina strong (Fig. 15). Scutellum black. Hind femur apically brown marked; hind coxa reddish-brown. Metasoma from tergite II brownish marked (Fig. 13)................................................................. M. hispanator Selfa, 1995

- Clypeus with apical median tooth weak, hardly visible in frontal view (Fig. 6). Postpetiole weakly punctate. Tergite II almost entirely polished and with few scatted punctures, slightly coriaceous only at the basal 0.1 (Fig. 8). Propodeum with area superomedia elongated, anterior transverse carina weak (Fig. 7). Scutellum red. Mesosoma and metasoma entirely red (Fig. 5)........................................................................................ M. strumiai sp. nov.