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,
Insect Habitat Insect Habitat The Insect Habitat was a science payload intended for the International Space Station as part of the Space Station Biological Research Program (SSBRP). The project was put on hold when Space Shuttle flights were interrupted after the destruction of Orbiter Columbia in February 2003. The insect research element of the program was managed by the Canadian Space Agency, and the prime contractor for the Insect Habitat was Routes AstroEngineering, of Ottawa, Ontario. The Insect Habitat would enable studies of the fruit fly to learn how microgravity affects development, nervous system function, movement and behavior, growth, reproduction, aging, gene