Lindsley & Grell, 1972, p. 106
discoverer: Bridges, 12a10.
references: Bridges and Morgan, 1919, Carnegie Inst. Wash. Publ. No. 278: 208 (fig.). Morgan, Bridges, and Sturtevant, 1925, Bibliog. Genet. 2: 212 (fig.), 226.
phenotype: Vein L4 weak or has section missing beyond posterior crossvein. Overlaps wild type when homozygous; semidominant as heterozygote. RK3.
color figure: P. A. Otto (original)
b & w figure: Bridges and Morgan, 1919, Carnegie Inst. Wash. Publ. No. 278: 209 (original drawn by Edith M. Wallace)