Lethality occurs from the third larval instar through to the pupal stage.
ActnG0077, vri[+]/vriunspecified has abnormal locomotor behavior | dominant phenotype
Actn[+]/ActnG0077, vriunspecified has abnormal locomotor behavior phenotype
ActnG0077, vri5R7.2 has wing margin | anterior phenotype
ActnG0077, vriunspecified has metathoracic leg phenotype
ActnG0077 vriunspecified double heterozygotes have progressive locomotory defects affecting the rear legs. vri5R7.2 ActnG0077 double heterozygotes have missing hairs at the anterior wing margin and on the wing surface.
P{lacW} verified as causing the lethality.