Orthoptera Species File (Version 5.0/5.0)
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Characters to separate taxa in Vilerna

Pronotal disc posterior margin angular or with a small median lobe projecting towards the posteriorPronotal disc posterior margin not or hardly angular
Aedeagus upper sclerites diverging at the apex

Aedeagus upper sclerites not diverging at the apex
Vilerna (partial) Vilerna (partial)
Source: Descamps & Amédégnato. 1989. Revue Française d'Entomologie (Nouvelle Serie). 11(1):17-28
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