Mutant larvae and adults show melanisation around the wound site after clean needle injury, as occurs in wild type.
Mutant larvae show melanisation of crystal cells after heating at 65[o]C for 10 minutes, as occurs in wild-type larvae.
Mutant larvae infested with eggs from the parasitoid wasp Leptopilina boulardi produce a melanized capsule around the wasp egg, as occurs in wild type.