Some studies of the haemolymph of Lucilia cuprina (Calliphoridae: Diptera)

The haemolymph proteins, glucose and lipids of different developmental stages of L. cuprina were estimated quantitatively. Starting with the early 2nd-instar larvae, protein contents decreased gradually as the fly reached the late pupal stage. Glucose levels increased prior to each larval moult, but decreased as the pupa aged. Lipid contents were higher in early 2nd-instar larvae and decreased prior to moulting, but in the 3rd instar the values were reversed and in pupae this also increased with age