Flügelabnormität bei Erythromma najas HANSEMANN

Abstract

A female Erythromma najas HANSEMANN 1823 bearing an abnormous venation of the right
forewing is described and illustrated. This might have been induced during the larval period by an
injury of the median part of the upper wing sheat. Sometimes a comparably irregulär venation of the
wing-tips is seen which might also be caused by injury during larval life.