Semilethal: viability at 25oC is 20--60%, at 18oC and 29oC 1--2%. Flightless. Male fertility reduced. Wings often apart and with additional veins.
Some lethality at 25oC, the most sensitive period is the larval stage. At 25oC and 29oC adults display a 'wings up' phenotype and some have an additional vein.
Temperature-dependent semi-lethality at 25oC, lethal at 18oC. Wings apart and with additional veins.
Flight and other behaviors impaired. Allows weak flight. positions in which they are held); male fertility reduced; sex combs reduced. wings abnormal in appearance (intrinsically and in terms of nearly lethal when reared at 18oC and cause poor viability when raised at 25oC. cold-sensitive lethal or semi-lethal
Homyk and Sheppard.