Pholeuon

Key to subgenera of Pholeuon (numbers represent average values for the two sexes; see also Table 1)

1 Median lobe of the aedeagus without dorsal invagination (Fig. 8 a). Small body (length 3.6–3.8 mm) and small pronotum (length/maximum width ratio 0.91–0.93 mm); ellongated elytra........................................ ........................................................................................................................ Protopholeuon Jeannel, 1923

- Median lobe of the aedeagus with dorsal invagination .................................. Pholeuon C. Hampe 1856... 2

2 Dorsal invagination of the median lobe present, more or less deep........................................................... 3

- Dorsal invagination of the median lobe reduced in its median part (Fig. 8 b); aedeagus small, but with relatively long basal and apical blades; apex of the parameres thin and slightly inflected. Body small (less than 3.5 mm), with short antennae (less than 2.3 mm); pronotum relatively large (length/maximum width ratio 0.93–0.95 mm), very narrow anteriorly (anterior/maximum widths ratio 0.55–0.56 mm); elytra covered by short and dense pubescence............................................................................................................. ................................................... Pholeuon (Mesopholeuon Moldovan, Racoviţă & Dunay, new subgenus)

3 Median lobe with deeper dorsal invagination (Figs. 8, c-d); apex of parameres thin, inflected and Sshaped. Body robust (length more than 4.3 mm); pronotum relatively large (length/maximum width ratio 0.94–0.98 mm); elytra longer than 3.1 mm, with rare and rough punctation at the apex .. Pholeuon (s. str.)

- Median lobe with less deep invagination (Fig. 8 e); apex of parameres clubed and not inflected. Body smaller (less than 4.3 mm); pronotum relatively small (length/maximum width ratio 0.86–0.89 mm); elytra narrow (1.75–1.77 mm width) with uniform punctation; very long antennae.................................... ................................................................................................ Pholeuon (Parapholeuon Ganglbauer, 1887 )