Expression of B0891B0891 under the control of Scer\GAL4dpp.blk1 results in shortening of the wing. Vein L3 does not extend to the margin and the anterior crossvein is missing.
The wing is shortened distally in flies expressing B0891B0891 under the control of Scer\GAL4dpp.blk1. Wing vein L3 often does not extend to the margin and the anterior crossvein is sometimes missing.