Definition of litre: A metric unit of capacity, formerly defined as the volume of one kilogram of water under standard conditions, now equal to 1,000 cubic centimetres (about 1.75 pints): 5 cc is about 5 ml. For details see wWkipedia: Litre and Metre. Views.
The thorax is the midsection of the insect body. It holds the head, legs, wings and abdomen. It is also called mesosoma in other arthropods. It is formed by the prothorax, mesothorax and metathorax and comprises the scutellum; the cervix, a membrane that separates the head from the thorax; and the pleuron, a lateral sclerite of the thorax.
The thorax of the butterfly is devoted to locomotion. Each of the three thoracic segments has two legs (among nymphalids, the first pair is reduced and the insects walk on four legs). The second and third segments of the thorax bear the wings.