Figs. 31–34 in Wing polymorphism in European species of Sphaeroceridae (Diptera)

Figs. 31–34. Spelobia pseudonivalis (Dahl, 1909), wings. 31 – submacropterous male (Czech Republic: Nízký Jeseník Mts.– Slunečná Mt.); 32 – slightly brachypterous female (Czech Republic: Hrubý Jeseník – Kouty nad Desnou); 33 – typical brachypterous female (Czech Republic: Horní Benešov env.); 34 – strongly brachypterous female with dm-cu cross-vein lost (Czech Republic: Moravský kras – Babice). Scale: 0.5 mm. Photo by J. Roháček.