Analysis of biometrical characters of two mallophagan species treated with a phosphoorganic insecticide.

On the basis of biometrical analysis of various parts of the body in M. gallinae and E. stramineus treated with insecticide (Polwet 5) it was found that only the sizes of abdomen were differently changed in both species. The differentiation of these changes depends on the Polwet 5 concentration used and on the specific morphological features of both species.