exoskeleton (PP). All of the external characteristics are larval,
but the pupae are formed and contained within the larval exoskeleton. Figure 2d shows morphological changes in a larvawhich died as an abnormal pre-pupa, showing deformed cephalothorax (arrow). Death in this stage occurred during the late
fourth instar and early stage of pupation (Fig. 2e). Grossly
deformed pre-pupa with attachment of larval exuvium at the
posterior end (arrow) is shown in Fig. 2f. In Fig. 2g, the pupa
died before hardening and darkening of cuticle and was
known as “albino.” The abdomen is held in an abnormally
straight position (arrow). A white pupa or albino pupa that
has completely escaped from the larval cuticle but remains