FLP-mediated recombination between the two progenitor insertions has deleted the genomic sequence between and produced a P+PBac{XP5.WH5} hybrid element.
Mutant embryos have a wild-type somatic muscle pattern and attachment of the muscles to the epidermis appears normal. Gut constrictions are formed normally and there are no irregularities in dorsal closure, or in formation of the central nervous system or heart.