Platyderus

Guéorguiev, Borislav, 2009, Three new species of Platyderus from South Italy (Coleoptera: Carabidae: Sphodrini), Zootaxa 2268, pp. 41-51 : 50

Key of the species of Platyderus from the South Apennines

1 Species with deeper and foveate frontal impressions on head and foveate basal impressions of pronotum; elytral striae finely punctate, each elytron usually with 4 dorsal SP as last two SP situated in posterior 1/3 of elytra. Apex of aedeagus twin-peaked, sharply bent downwards ( Figs. 1 , 7 , 11 )............................................... P. casalei new species

- Species with shallow and sublinear frontal impressions on head and linear or sublinear basal impressions of pronotum; elytral striae impunctate, each elytron usually with 3 dorsal SP as single SP situated in posterior 1/3 of elytra. Apex of aedeagus one-peaked, straight or obliquely bent downwards........................................................................ 2

2 Intervals of elytra finely punctate; elytral intervals 1-3 with reduced microsculpture (elytra of males throughout with reduced microsculpture).............................................................................................................. P. vignai new species

- Intervals of elytra impunctate; all elytral intervals in both sexes with distinct microsculpture .................................. 3

3 Median lobe of aedeagus more or less humpedbacked in middle dorsally, more or less widest in middle ( Figs. 2, 4 , 8, 10 , 12, 14 ). Copulatory piece ventrally without medial lobe protruding in front ( Figs. 12, 14 ) ................................ 4

- Median lobe of aedeagus not humpedbacked in middle dorsally, having equal width at middle and at apex ( Fig. 3 ). Copulatory piece ventrally with medial lobe protruding in front ( Fig. 13 ) ......................... P. neapolitanus Chaudoir

4 Inclination of apex of median lobe of aedeagus at 35º–45º in relation to medial part of ventral margin ( Figs. 4 , 8 ). Copulatory piece ventrally with single lobe protruding in front ( Fig. 14 )............................ P. paganettii new species

- Inclination of apex of median lobe of aedeagus at 20º–25º in relation to medial part of ventral margin ( Fig. 2 ). Copulatory piece ventrally with two lobes equally protruding in front ( Fig. 12 )............................ P. magrinii Degiovanni

Figures

FIGURES 1 - 6. Median lobe of aedeagus left lateral view and parameres of Italian Platyderus: Fig. 1. Platyderus casalei sp. n., holotype; Fig. 2. P. magrinii Degiovanni, “ Mte Graeco ”; Fig. 3. P. neapolitanus Chaudoir, “ Emery Napels ”; Fig. 4. P. paganettii sp. n., holotype; Fig. 5. P. vignai sp. n., holotype; Fig. 6. P. vignai sp. n., holotype, parameres.

FIGURES 7 - 10. Median lobe of aedeagus right lateral view and copulatory piece of Italian Platyderus: Fig. 7. Platyderus casalei sp. n., holotype; Fig. 8. P. paganettii sp. n., holotype; Fig. 9. P. vignai sp. n., holotype; Fig. 10. P. paganettii sp. n., holotype, dorsal and ventral shape of copulatory piece.

FIGURES 11 - 18. Median lobe of aedeagus, ventral and dorsal views of Italian Platyderus: Fig. 11. Platyderus casalei sp. n., holotype, ventral view; Fig. 12. P. magrinii Degiovanni, “ Mte Graeco ”, ventral view; Fig. 13. P. neapolitanus Chaudoir, “ Emery Napels ”, ventral view; Fig. 14. P. paganettii sp. n., holotype, ventral view; Fig. 15. P. vignai sp. n., holotype, ventral view; Fig. 16. Platyderus casalei sp. n., holotype, dorsal view; Fig. 17. P. neapolitanus Chaudoir, “ Emery Napels ”, dorsal view; Fig. 18. P. vignai sp. n., holotype, dorsal view.