Eggs are laid singly on a flower bud, the calyx or pedicle of a flower of the host plant. Each egg is light green in color, small and circular with a slightly depressed micropylar. The surface is covered with hexagonal pits which have tiny lumps littering the pit floor. Diameter: 0.7mm.
Three days later, the egg hatches with the young caterpillar eating away the upper portion of the egg shell to emerge. Measured at a length of about 1mm, its pale yellow body is cylindrical in shape, sporting long setae (hairs) and a yellowish brown head capsule.
The 1st instar caterpillar starts feeding on the flower buds and other tender parts of the flowers in the vicinity. As it feeds and grows, it gradually takes on a light greenish coloration.
After 2-3 days of growth and reaching a length of about 2mm, the caterpillar moults to the next instar. Numerous short setae cover the caterpillar body which has taken on a woodlouse shape. It has a yellowish green body color with a faint pinky undertone. In contrast to the features-rich adults, the early stages of Fluffy Tit are all rather unremarkably plain in appearance. Caterpillars in subsequent instars will look rather similar to the 2nd instar caterpillar with only minor changes in appearance.
3rd instar caterpillar, length: 8mm The 4th (and final) instar caterpillar still has the same general appearance as the earlier two instars, but now the dorsal nectary organ on the 7th abdominal segment has become rather prominent.Two views of a 4th instar caterpillar dining on a flower bud, early in this stage, length: 10.5mm. Note the dorsal nectary organ on the caterpillar in the bottom picture.
- The Butterflies of The Malay Peninsula, A.S. Corbet and H.M. Pendlebury, 4th Edition, Malayan Nature Society.
- Butterflies of Borneo, Vol.2, No.1 Lycaenidae, Y. Seki, Y Takanami & K. Otsuka, Tobishima Corporation 1991.