 The size is included for both sexes between 9 and 12 mm.The eggs produced are of a spherical shape and compared to the others similar species present in Italy (C. kerkyrensis, C. salinus, C. sibyllae, C. diaphanous and C. ruffoi) result from the ones of bigger dimension with an average diameter of 0.43 mm.The Chirocephalus marchesonii has an anamorphic development where the embryo opens as Nauplius larva and the adult shape is touched after a series of gradual modifications of the physical morphology, and the new sections and appendix are gradually added.