UASt regulatory sequences drive expression of an inverted repeat.
macrochaeta, with Scer\GAL4pnr-MD237
mesonotum, with Scer\GAL4pnr-MD237
Expression using Scer\GAL4pnr-MD237 results in irregular bristle patterning and loss of bristles, and necrosis and tissue death at multiple places in the notum.