Petiole (insect anatomy) a pedicel, but in entomology, that term is more correctly reserved for the second segment of the antenna; while in arachnology, 'pedicel' is the accepted term to define the constriction between the cephalothorax and abdomen of spiders. The plump portion of the abdomen posterior to the petiole (and postpetiole in the Myrmicinae) is called the gaster. The structure of the petiole is an easy way to visually classify ants, because the major subfamilies of Formicidae have structural differences: some ants have two-segmented petioles, while others have a single-segmented petiole. Petiole may also be used in the context of wing veins,
Conservation and restoration of insect specimens kind of documentation through digitization, bringing high quality images and associated information to anyone with access to the Internet. Large databases can hold vast amounts of information improving research efforts. Scientific illustration of insects is an older technique used to preserve information about collected insects. It visually documents insects, and unlike photography, can add intellectual ideas about anatomy and behavior of the insect through artists' renditions. Scientifically informed observation of specimens combined with technical and aesthetic skill yields the highly detailed illustrations necessary for the documentation of each species that is illustrated. This area of insect specimen documentation comes after