Tarsal segments are shortened, segmentation is disturbed and the number of segments is reduced. Wings are an irregular shape and are shortened. Wings are slightly moved apart and raised. In some mutant the L2 vein is broken. Fourth antennal segment is reduced. Body size is reduced. Outer components of the genitalia are normal, inner components are aberrant. Lifetime of adults is normal at 25oC.
Allelism assumed.
Isolated from: Uman', Ukraine population, 1989.