Sphecodogastra Ashmead, 1899

Subgenus Sphecodogastra Ashmead, 1899

Sphecodogastra Ashmead 1899: 92 . Type species: Sphecodes texana Cresson, 1872 , by original designation. Halictus ( Calchalictus) Warncke 1975: 99 . Type species: Apis calceata Scopoli, 1763 , by original designation. Halictus ( Inhalictus) Warncke 1975: 96 . Type species: Hylaeus interruptus Panzer, 1798 , by original designation. Minutulaeus Pesenko 2007a: 11. Type species: Hylaeus minutulus Schenck, 1853 , by original designation. Nodicornevylaeus Pesenko 2007a: 11. Type species: Halictus nodicornis Morawitz, 1889 , by original designation and

monotypy.

Monilevylaeus Pesenko 2007a: 13. Type species: Halictus immunitus Vachal, 1895 , by original designation and monotypy. Tricinctevylaeus Pesenko 2007a: 14. Type species: Halictus tricinctus Schenck, 1874 , by original designation. Fratevylaeus Pesenko 2007a: 14. Type species: Halictus fratellus Pérez, 1903 , by original designation. Malachevylaeus Pesenko 2007a: 15. Type species: Melitta malachura Kirby, 1802 , by original designation. Pauxevylaeus Pesenko 2007a: 11. Type species: Hylaeus pauxillus Schenck, 1853 , by original designation.

Diagnosis. This subgenus is generally separated from the other subgenera in Hemihalictus series occurring in eastern Asia by a combination of the following character states: head and mesosoma black in both sexes (except for the apristum group with weak green-metallic luster in female as in Fig. 2A View FIGURE 2 ); female mandible with an apical tooth; female labrum with well developed basal elevation; mesepisternum coarsely reticulate-rugulose over entire surface in both sexes ( Fig. 2 View FIGURE 2 C); posterior surface of propodeum with complete lateral carina reaching to posterior edge of metapostnotum as in Fig. 3 View FIGURE 3 B ( L. boreale Svensson et al. , L. solisortus Ebmer & Sakagami , and L. subtropicum Sakagami et al. with short lateral carina not reaching to posterior edge of metapostnotum as variation); and male S6 straight apically.

Comments. Palearctic species is classified into 9 species groups combined Pesenko’s system ( Pesenko 2007a) and apristum group ( Ebmer 2002 and Murao & Tadauchi 2005): apristum group ( Ebmer 2002), calceatum group, fulvicorne-fratellum group ( Ebmer 1995), immunitum group, malachurum group ( Ebmer 1995), minutulum group ( Ebmer 1976b), nodicorne group, tricinctum group ( Ebmer 1995), and pauxillum group ( Ebmer 1995) (treated in Pesenko 2007a, as Evylaeus ( E.), E. ( Fratevylaeus), E. ( Monilevylaeus), E. ( Malachevylaeus), E. ( Minutulaeus), E. ( Nodicornevylaeus),, E. ( Tricinctevylaeus), E. ( Pauxevylaeus). Three groups of them occur in the Korean Peninsula: apristum , calceatum , fulvicorne - fratellum