Lesion in the 5' end of the Dmau\mariner insertion, where it abuts Dmau\wpch sequences, extending into Dmau\w sequence: 7bp deletion and 14bp insertion.
Eye colour: mosaic peach/red (10-30 spots per eye) in the presence of Dmau\mariner transposase (in an otherwise w- background).
Dmau\mariner has undergone an excision-defective mutation.