Expression of B0176B0176 under the control of Scer\GAL4dpp.blk1 results in the 1st cell of the wing being slightly smaller than normal. The anterior crossvein is missing. Vein fusions or ectopic bristles are also seen.
The anterior crossvein is missing in flies expressing B0176B0176 under the control of Scer\GAL4dpp.blk1.