hypomorphic allele - genetic evidence
lethal - all die before end of pupal stage
some die during pupal stage
Abl3/Abl2, eyaA188/eya2 has lethal - all die before end of larval stage phenotype
The pupal lethality of hemizygous flies is not affected if the flies are also mutant for Ptp99A (Ptp99AHA64/Ptp99AR3).