Polytene chromosomes normal.
Spreading of veins most marked for L2 and L5. Posterior crossvein thickened, coalescing with the delta of L5. L2 slightly thickened. Expression more extreme at higher temperature, especially in males. Spreading of veins apparent in the 40- to 41-hour-old pupa. Suppressed by Hunspecified. RK2.
Complementation behavior based on recessive lethality.
Clark.