Stenichnus species

Assing, Volker, Brachat, Volker & Meybohm, Heinrich, 2019, Monograph of the Staphylinidae of Crete (Greece). Part II. Descriptions of new species (Insecta: Coleoptera), Beiträge Zur Entomologie = Contributions to Entomology 69 (2), pp. 239-289 : 277

Key to the Stenichnus species of Crete

1. Body length <1.3 mm. ♂: profemur with angular dilatation; aedeagus as in Fig. 143 . ............... creticus

– Body length> 1.4 mm. ............................................. 2

2. Elytra with pronounced humeral angles. ♂: profemur distally with non-angular dilatation; aedeagus as in Fig. 137 . .................................................... aegialioides

– Elytra without humeral angles ................................. 3

3. Base of pronotum with two small foveae. .............. 4

– Base of pronotum with four large foveae. .............. 5

4. Elytra drop-shaped and depressed, pubescence not conspicuously long. ♂: profemur distally with angular dilatation (angle approximately 135°); abdomen as in Fig. 131 ; aedeagus as in Fig. 132 . ................. brachati

– Elytra neither drop-shaped nor depressed, pubescence conspicuously long. ♂: profemur distally with broader, not angular dilatation; abdomen as in Fig. 135 ; aedeagus as in Fig. 136 ................ orientalis

5. Elytra with very fine, indistinct punctation and with very long erect setae. ♂: profemur with indistinctly angular distal dilatation; aedeagus as in Fig. 145 ...... ................................................................. basimpressus

– Elytra with distinct punctation and long suberect setae. ♂: profemur distally with angular dilatation (angle 90°), with a weakly indicated tooth; aedeagus as in Fig. 144 . .................................................................... hummleri

Figures

Figs 143–155: Stenichnus creticus (143), S. hummleri (144), S. basimpressus (145), S. aegialioides (146), Leptomastax cretica (147–149), L. thriptica (150), L. bisetosa (151), Afropselaphus doernfeldae (152), A. assingi (153), A. diktianus (154), and A. thripticus (155): aedeagus in lateral and dorsal view (143–145, 148–150, 152–155); male profemur (146); labium (147, 151). Scale bars: 0.1 mm.

Figs 127–142: Cephennium chanianum (127–129), Euconnus zakrius (130), Stenichnus brachati (131–133), S. orientalis (134–136), S. aegialioides (137–138), S. aegialius (139–140), and S. godarti (141–142): habitus (127, 134); aedeagus in lateral, ventral, and dorsal view (128–130, 132, 136–137, 139, 141); male abdomen in ventral view (131, 135); spermatheca (133, 138, 140, 142). Scale bars: 127, 134: 0.5 mm; 131, 135: 0.2 mm; 128–130, 132–133, 136–142: 0.1 mm.