Lethality occurs before the wandering third larval instar stage in homozygotes.
Homozygous clones in the third larval instar brain consist of only one or two cells, but the neuroblasts in them do not show any gross morphological defects.
Separable from: a lethal mutation in the 61C5--62A8 region region (which is uncovered by Df(3L)Ar14-8).