visible | recessive
anterior scutellar bristle
posterior scutellar bristle
Anterior scutellar bristles absent; posterior scutellar bristles usually absent.
Dwil\sc2 has phenotype, enhanceable by Dwil\re1
Dwil\sc2 is an enhancer of phenotype of Dwil\re1
R.C. Lancefield, February 1920.