The P{lacZ.ry+} enhancer trap element in P{lacZ.ry+}hdcB5 has been replaced with a P{GawB} enhancer trap element by the simultaneous mobilization of P{lacZ.ry+}hdcB5 and a P{GawB} insertion. The P{GawB} element is located 8bp upstream of the original P{lacZ.ry+}hdcB5 insertion, being located 1025bp upstream of the hdc start codon.
Reporter expression is observed in the imaginal discs, in abdominal histoblasts, in the genital disc, and in the lymph gland in larvae. No expression is observed in adults.