Key to species (males) of Parascatopse from the Palearctic and Oriental Regions

1 Male sternite 7 truncate apically in posterior projection (Figs. 3, 8)............................................. 2

- Male sternite 7 rounded posteriorly or with broadly triangular posterior projection (Cook 1955, Figs. 4D,4F)............ 4

2 Male tergite 7 with an obvious concaved median posterior margin (Figs. 4, 9)..................................... 3

- Male tergite 7 only with a shallowly concaved median posterior margin (Haenni and Pollini 2015, Fig. 2)............................................................................................ P. distorta Haenni and Pollini

3 Male tergite 7 strongly concaved, with two sharp angles symmetrically on its posterior margin (Fig. 9)... P. concava sp. nov.

- Male tergite 7 obviously concaved, without two sharp angles symmetrically (Fig. 4).................. P. rotunda sp. nov.

4 Penis with tip entire (Cook 1969, Fig. 24)............................................... P. minutissima (Verrall)

- Penis with bifurcate apex (Cook 1969, Fig. 26).............................................. P. litorea (Edwards)