Zetheumenidion hessei ( GiOrdani SOika, 1944 )

Selis, Marco, 2024, Revision of the Afrotropical genus Zetheumenidion Bequaert (Hymenoptera: Vespidae: Eumeninae), Zootaxa 5406 (1), pp. 37-65 : 49

Zetheumenidion hessei ( GiOrdani SOika, 1944)

( Figs. 6 , 12 )

Eumenes Hessei Giordani Soika 1944: 162 , ♀, ♂ (in subgenus Zetheumenidion )—“ Namaqualand: Bowesdorp” (lectotype female MSNVE).

Diagnosis. Distinguished from all other Zetheumenidion species by the shiny and wide interspaces on mesosoma exceeding the puncture diameter, the deep punctures on whole surface of T2, and the apical lamella of T2 strongly reflexed and exceeding the height of the preapical swelling ( Fig. 6E ).

Material examined. LECTOTYPE OF EUMENES HESSEI : ♀ labeled “Bowesdorp / Namaqualand / Museum Staff / Nov. 1931 // South African Museum. / Cape Town No.38 // HOLOTYPUS / Hessei n.sp. / A. Giordani Soika ” ( MSNVE). SOUTH AFRICA: Cape of Good Hope, 1♂ ( MSNVE, paralectotype of Eumenes hessei ).

Distribution. South Africa: Northern Cape ( Giordani Soika 1944) ( Fig. 13 ).

Notes. Giordani Soika labeled the female type as “ holotype ” but it is in fact the lectotype, as designated by Giordani Soika (1973) himself.

Figures

FIGURE 6. Zetheumenidion hessei (Giordani Soika, 1944). A, female habitus in dorsal view. B, male head in frontal view. C, female head in frontal view. D, male hind femur in lateral view. E, female metasoma in lateral view.

FIGURE 12. Male genitalia of Zetheumenidion species: aedeagus in ventral view, aedeagus in lateral view and digitus + volsella.

FIGURE 13. Distribution maps of Zetheumenidion species.