segments was found (arrow) (Fig. 3h). Figure 3i shows an
abnormal pupa that died as deformed pupa with enlarged
cephalothorax (arrow).Figure 4 shows morphological abnormalities among Ae.
aegypti adults emerging from the pupal case (PA). During
adult eclosion, some specimens died immediately after
splitting of the pupal shell and the adult thorax was patially extruded (Fig. 4a) (arrow). Adult’s main trunk was
exuviated, but the remainder was still retained within the
pupal exuvium (Fig. 4b) (arrow). Sometimes, the head and
thorax were freed, but the abdomen remained enclosed
(Fig. 4c). Some adults died when they had almost completely emerged from the pupal exoskeleton, but the
wings and legs were still attached (Fig. 4d). Figure 4e
shows completely emerged adults, but the wings and legs
are twisted and they are unable to leave the water surface.
Other adults completely emerged and appeared normal but
were unable to fly and remained trapped on the water
surface until death (Fig. 4f)