Excision of the P-element removing some of the P-element sequences; 3' breakpoint is at position 2891, 5' breakpoint is at position 404 of the P-element (coordinates according to FBrf0038996).
Flies have darker pigmentation of the body and wing compared to the y2s phenotype.
y+ls3 has abnormal body color | recessive phenotype, suppressible by su(Hw)V/su(Hw)2