Table 1. Sampling spots in Belgium, Germany, Switzerland, Austria and Slovenia, listed in order of decreasing latitude.
| Federal state or province/canton or statistical region | Location | Latitude | Longitude | Date | NS | Nm |
| Namur, Belgium | Natoye, Hamois | 50.3389 N | 05.0447 E | 08/14/2008 | 6 | 6 |
| 08/31/2010 | 12 | 12 | ||||
| North Rhine-Westphalia, Germany | Altenrath | 50.8597 N | 07.1959 E | 08/29/2012 | 25 | 35 |
| Walberberg | 50.7933 N | 06.9094 E | 08/23/2012 | 32 | 40 | |
| Bonn-Hoholz | 50.7365 N | 07.1979 E | 08/23/2012 | 38 | 40 | |
| Rhineland-Palatinate, Germany | Linz | 50.5748 N | 07.2962 E | 08/23/2012 | 32 | 41 |
| Bad Hönningen | 50.5197 N | 07.3104 E | 08/24/2012 | 27 | 41 | |
| Aargau, Switzerland | Möhlin | 47.5696 N | 07.8256 E | 06/29/2012 | 7 | 7 |
| Laufenburg | 47.5561 N | 08.0611 E | 09/04/2008 | 3 | 3 | |
| Gebenstorf | 47.4842 N | 08.2386 E | 08/28/2008 | 6 | 6 | |
| Zurich, Switzerland | Dietikon | 47.3979 N | 08.4060 E | 09/02/2008 | 2 | 6 |
| Südweststeiermark, Austria | Graz Straβgang | 47.0219 N | 15.3984 E | 09/23/2011 | 2 | 2 |
| Dietersdorf | 46.9197 N | 15.4021 E | 09/10/2011 | 2 | 2 | |
| Kitzeck | 46.7814 N | 15.4541 E | 09/10/2011 | 4 | 4 | |
| Arnfels | 46.6762 N | 15.4037 E | 09/24/2011 | 5 | 5 | |
| Glanz | 46.6620 N | 15.5355 E | 09/10/2011 | 2 | 2 | |
| Steiermark, Austria | Haag | 46.8477 N | 15.9046 E | 08/30/2011 | 5 | 5 |
| Kärnten, Austria | Lavamünd | 46.6358 N | 14.9539 E | 09/24/2011 | 6 | 6 |
| Koroška, Slovenia | Brezno | 46.5961 N | 15.3169 E | 09/24/2011 | 5 | 4 |
| Drava, Slovenia | Kamnica | 46.5718 N | 15.5965 E | 09/24/2011 | 6 | 6 |
A total of 227 individuals were sequenced at nad4 (NS) and 273 were genotyped at 7 microsatellite loci (Nm). “Date” refers to the day of collection from the field. The same order of specimens was used in the Bayesian multilocus genotype analysis (Fig. 2).