Figure 4.

Typical cuticles manifesting a “complete” “intermediate” or “ablation” phenotype. Darkfield micrographs of wild-type pure species larval cuticles of Drosophila melanogaster (A) and D. santomea (B) with the major thoracic and abdominal segments mapped below. (C–D) Hybrid larval cuticles typifying the three major categories of defects in those embryos that failed to hatch.