Caused by a deletion that starts just upstream of the cic start site and extends away from the gene.
wing vein | ectopic, with cic08482
bwkΔ4, cic1 has wild-type phenotype
bwkΔ4, cic1 has wing vein | ectopic phenotype
bwkΔ4, cicD49 has wing vein | ectopic phenotype
bwkΔ4 combined with cic1 produces wild-type animals, with cicD49 produces animals with an extra veins phenotype.