The Lymantriinae are a subfamily of moths of the Erebidae family.
Many of its component species are referred to as “tussock moths” of one sort or another. The caterpillar, or larval, stage of these species often has a distinctive appearance of alternating bristles and haired projections. Many tussock moth caterpillars have urticating hairs [often hidden among longer, softer hairs], which can cause painful reactions if they come into contact with skin.
The subfamily Lymantriinae includes about 350 known genera and over 2,500 known species found in every continent except Antarctica.
Photos: Pasir Ris Park and Nature Reserve, Singapore [20160228]
Source: Wikipedia