Numerous ectopic bristles are present on h1/h26 wings, both in intervein regions (79% penetrance) and on the L2 wing vein (100% penetrance).
Homozygous embryos have segmentation defects; only 18% of embryos have more than 4 segments.
30% of h30/h26 embryos die and do not hatch.
h26/h30 embryos have a pair-rule phenotype, leading to the loss of every second segment.
h26/h30 embryos show a pair-rule cuticle phenotype.
Larvae display an extreme 'lawn' phenotype. h26/h30 transheterozygous larvae display a pair-rule phenotype.
Reduced rate of germ band extension.
Legs from hcosh; h-/h- adults show a bristle patterning defect that correlates with the expression pattern of h in pupal leg imaginal discs.
h26 mutant clones in the eye have very few defective ommatidia.
h19/h26 heterozygote has loss of h expression in the longitudinal preveins L3 and L5, location coincides with the ectopic expression of ac.
Deletion of even denticle bands and odd naked cuticle.
Class IV allele: has a strong segmentation phenotype either when homozygous or in trans with h25, and fails to complement the bristle phenotype of h1.