▁height ▁( d ome ▁sh aped ). ▁They ▁are ▁of ▁cre am ▁to ▁white ▁colour ▁when ▁depos ited ▁and ▁turn ▁black ▁on ▁the ▁day ▁before ▁h atch ing . ▁They ▁are ▁laid ▁sing ly ▁or ▁in ▁batch es ▁on ▁the ▁unders ide ▁of ▁leaves . ▁The ▁duration ▁of ▁eggs ▁is ▁ 5 – 6 ▁days . ▁The ▁lar va e ▁feed ▁at ▁night . ▁Their ▁head ▁is ▁smooth ▁and ▁their ▁body ▁is ▁covered ▁with ▁dark , ▁pl um ose ▁set ae ▁( fe ath ery ▁hair s ). ▁At ▁m atur ity ▁they ▁reach ▁a ▁size ▁of ▁ 2 6 . 4   mm . ▁P up ae ▁is ▁about ▁half ▁the ▁length ▁of ▁the ▁lar va e , ▁and ▁the ▁pup al ▁stage ▁is ▁ 1 1 – 1 2 ▁days . ▁ ▁Ad ult s ▁of ▁this ▁moth ▁are ▁mostly ▁of ▁m ott led ▁sh ades ▁of ▁grey ▁with ▁white ▁and ▁with ▁black ▁spot ting ▁on ▁the ▁for ew ings . ▁The ▁whole ▁life ▁span ▁of ▁this ▁moth s ▁is ▁about ▁ 4 1 ▁days , ▁producing ▁up ▁to ▁nine ▁generation ▁in ▁a ▁year ▁under ▁labor atory ▁conditions . ▁ ▁The ▁lar va e ▁of ▁this ▁moth s ▁feed ▁on ▁fire we ed ▁( S ene cio ▁mad ag asc ari ensis ▁an ▁A ster aceae ), ▁a ▁plant ▁also ▁native ▁to ▁Mad agas car ▁that ▁has ▁been ▁introduced ▁to ▁Australia ▁and ▁Hawai i , ▁where ▁it ▁has ▁become ▁an ▁invas ive ▁p est . ▁ ▁To ▁a ▁less er ▁extent