Fig. 617-621 in Guide to preparing scientific illustrations in Entomology on an example of Ichneumonidae (Hymenoptera)

Fig. 617-621: Operations on giving of volumetric appearance to tergites 1-2 of abdomen of ichneumon fly. (617-628) 1st tergite: (617) first stage of darkening (Feather=150px, Brightness= – 10), (618) second stage of darkenings (Feather=150px, Brightness= –10), (619) third stage of darkening (Feather=100px, Brightness= –20), (620) fourth stage of darkening (Feather=100px, Brightness= –20), (621) darkening and contrasting of tergite base and lateral fields of postpetiolus (Feather=100px, Brightness= –13, Contrast= –30).