Incomplete excision of the P-element; a 1kb insertion is still present.
Eye colour: red pigments are 87 +/- 6% of wild-type levels, brown pigments are 78 +/- 9% of wild-type levels in males. Malpighian tubule colour: yellow (wild-type colour is orange). Testis colour: bright yellow (wild-type colour is bright yellow).
Revertant.