MUDr. Kryštof Rückl
Leviellus stroemi (Thorell, 1870) VU
Leviellus thorelli (Ausserer, 1871) CR
Zygiella atrica (C. L. Koch, 1845) ES
Zygiella montana (C. L. Koch, 1834) ES
Zygiella x-notata (Clerck, 1757) ES
Males of Zygiella atrica can easily be identified by their long palps. Females and juveniles of Zygiella atrica and Zygiella x-notata cannot be distinguished only by the pattern and colouration on the prosoma and opisthosoma. Zygiella atrica can be dark and can have a pattern on the prosoma like Zygiella x-notata. Zygiella x-notata also has light and reddish forms. In Czechia, both species can occur syntopically, so an examination of the genitals is necessary.
Rückl K. (2022): Můžeme v terénu či z fotografií spolehlivě rozeznat středoevropské křižáky rodu Zygiella? Can we distinguish Central European sector orb-weavers of the genus Zygiella also in the field or from a photo? Pavouk 53: 10–17 (in Czech, English abstract)