Breaks in first intron of elB.
alula & macrochaeta
Class i allele.
Hemizygotes are almost wild-type, but have a reduction in the number of marginal bristles on the alulae and along the posterior wing margin. Wing vein L5 is sometimes shortened.
Intermediate; class ii (Davis, 2003.5.6, personal communication to FlyBase provides contradictory, class i, assignment).
Shows slight but real enhancement of "Sco" alleles.
Lyttle.