Key to the Turkish species of the genus Leptobium
The keys to Turkish Leptobium species in Assing (2005, 2006, 2009, 2010b) and Anlaş (2012) are modified as follows:
1. Elytra posteriorly with yellowish spots, anteriorly blackish. From Canary Islands to Middle Asia.... L. gracile (Gravenhorst)
- Elytra posteriorly without yellowish spots................................................................. 2.
2. Pronotum reddish.................................................................................... 3.
- Pronotum blackish.................................................................................... 6.
3. Larger species; body length>8.0 mm..................................................................... 4.
- Smaller species; body length <7.5 mm .................................................................... 5.
4. Body length> 8.5 mm. Southwestern Anatolia: Antalya, Muğla .................................. L. carinatum Assing
- Body length 8 mm. Central southern Anatolia: Karaman ...................................... L. nabozhenkoi Anlaş
5. Ventral process of aedeagus pointed apically. Southwestern Anatolia: Antalya ........................ L. mutabile Assing
- Ventral process aedeagus apically rounded apically. Central southeastern Anatolia: Gaziantep, Kilis ..... L. geminum Assing
6. Elytra blackish. Western Anatolia: İzmir, Manisa ........................................... L. bozdaghense Assing
- Elytra reddish....................................................................................... 7.
7. Body length> 8.5 mm ................................................................................. 8.
- Body length <7.5 mm ................................................................................ 10.
8. Dorsal plate of aedeagus moderately long and with almost straight lateral margins, with distinct median carina dorsally. Wide- spread from Slovenia to southern Turkey .................................................. L. illyricum (Erichson)
- Aedeagus of different morphology; dorsal plate either without dorsal carina, or with pair of carinae................... 9.
9. Both margins of dorsal plate of aedeagus more or less distinctive. Southern Anatolia: Antalya ........ L. wunderlei Bordoni
- Only one margin of dorsal plate of aedeagus distinctive. From southern Turkey to Israel and in Cyprus ....................................................................................................... L. syriacum (Saulcy)
10. Dorsal plate of aedeagus with pair of distinct dorsal carinae................................................... 11.
- Dorsal plate of aedeagus with one dorsal carinae........................................................... 12.
11. Ventral process of aedeagus strongly asymmetric. Central southeastern Anatolia: Hatay................ L. schuelkei Assing
- Ventral process of aedeagus slightly asymmetric. Central southeastern Anatolia: Gaziantep, Hatay, Kilis ..................................................................................................... L. bicarinatum Assing
12. Dorsal plate of aedeagus symmetrical.................................................................... 13.
- Dorsal plate of aedeagus asymmetrical................................................................... 14.
13. Ventral process of aedeagus more transverse, strongly asymmetric. Northern Anatolia: Sinop ........... L. ponticum Assing
- Ventral process of aedeagus weakly transverse, almost symmetrical. Ukrania: Crimea and Turkey: Bursa, İzmir................................................................................................ L. tauricum Gusarov
14. Aedeagus with weakly asymmetric ventral process......................................................... 15.
- Aedeagus with distinctly asymmetric ventral process....................................................... 16.
15. Elytra reddish, with the anterior margin infuscate. Dorsal plate of the aedeagus long. Central Anatolia: Ankara.................................................................................................... L. yagmuri sp. n.
- Elytra uniformly reddish. Dorsal plate of the aedeagus short. Southern Anatolia: Antalya, Gaziantep, Hatay, Kahramanmaraş, Osmaniye .............................................................................. L. assingi Bordoni
16. Aedeagus with apically abruptly narrowed. Central northern Anatolia: Çankırı ...................... L. ilgazicum Assing
- Aedeagus with apically not abruptly narrowed. Western Anatolia: Manisa ............................. L. anlasi Assing