body color defective
visible | recessive
Electroretinograms from t2 flies lack lamina "on" and "off" transients.
Larval mouth part colour: lighter than normal at basal prongs; classifiable with difficulty in larva.
Body colour: darker than t1; antennae color same as t1.
t2 has phenotype, non-suppressible by su(Hw)2
Bridges, 5th April 1919.