Pink boll worm belong to the order

Pink boll worms belong to the order Lepidoptera.
Bollworm, any larvae of various moths belongs to order Lepidoptera, including the pink bollworm (Pectinophora gossypiella, family Gelechiidae) and some Helicoverpa species.
The pink bollworm is an insect known for being a pest in cotton farming. The adult is a small, thin, gray moth with fringed wings. The larva is a dull white caterpillar with eight pairs of legs with conspicuous pink banding along its dorsum. The larva reaches one-half inch in length.