Key to species of Physciolagria

Confident identification is yet possible only for males. Female remains unknown for P. pollocki . Since pronotal colour varies in Physciolagria, this feature should be used carefully for treating species.

1 Elytral pubescence double, with distinct, short undersetae and longer ordinary setae; parameres of male aedeagus apically with distinct, curved spine apically; pronotum pale, disc with rufobrunneous, median, longitudinal spot......................................................................................................... P. pollocki (Telnov)

- Elytral pubescence simple (without undersetae); parameres of male aedeagus not spinose apically; pronotum nearly uniformly dark or pale, without contrasting median dark spot.......................................................... 2

2 Tegmen of aedeagus as in Figs 28–29; median lobe as in Figs 36–38; female terminal antennomere as in Fig. 1, comparatively long, with an inconspicuous basal denticle at inner margin.......................................... P. liturata Pic

- Tegmen and median lobe of aedeagus different; female terminal antennomere comparatively long, with an inconspicuous basal denticle at inner margin (Figs 18–19) or distinctly shorter, with conspicuous basal denticle at inner margin (Figs 45, 47)... 3

3 Tegmen of aedeagus as in Figs 30–32; median lobe as in Figs 39–41; female terminal antennomere rather short, with conspicuous basal denticle at anterior margin (Figs 45, 47); pronotum pale, about same colour as elytra; pronotal dorsal setae about same colour as pronotum................................................................. P. singularicornis (Pic)

- Tegmen of aedeagus as in Figs 33–35; median lobe as in Figs 42–44; female terminal antennomere comparatively longer, with inconspicuous median denticle at anterior margin (Figs 18–19); pronotum distinctly darker than elytra; pronotal dorsal setae distinctly paler than pronotum.............................................................. P. smithi sp. nov.