What type of development occur in Periplanata americana ? Write about nymphs

The development of Periplanata americana is hemimetabolous.
(a) Nymph look very much like adult cockroaches, which are given no parental care.
(b) The hatching cockroaches are left to feed for themselves.
© They grow by moulting, comprises of 13 moults before it reaches an adult form.
(d) Last nymphal stage possesses wing pads but no wings.