visible
wing vein L2
wing vein L3
L2 and L3 partly fuse with thickness of a crossvein. Less viable, though Dana\amb seems to improve the viability.
Moriwaki, 14 April 1972.
Arose in: + Dana\f2/Dana\amb +; Dana\se/+; Dana\ru /+ x Dana\f2 cross, as two males.