Insect morphology least three different positions: prognathous, opisthognathous, and hypognathous. In species with prognathous articulation, the head is positioned vertically aligned with the body, such as species of Formicidae; while in a hypognathous type, the head is aligned horizontally adjacent to the body. An opisthognathous head is positioned diagonally, such as species of Blattodea and some Coleoptera. The mouthparts vary greatly between insects of different orders, but the two main functional groups are mandibulate and haustellate. Haustellate mouthparts are used for sucking liquids and can be further classified by the presence of stylets, which include piercing-sucking, sponging, and siphoning. The stylets are
Infraspecific name agriculture or horticulture. Such names are regulated by the "International Code of Nomenclature for Cultivated Plants" (ICNCP). Although logically below the rank of species (and hence "infraspecific"), a cultivar name may be attached to any scientific name at the genus level or below. The minimum requirement is to specify a genus name. For example, "Achillea" 'Cerise Queen' is a cultivar; "Pinus nigra" 'Arnold Sentinel' is a cultivar of the species "P. nigra" (which is propagated vegetatively, by cloning). Infraspecific name In botany, an infraspecific name is the scientific name for any taxon below the rank of species, i.e. an infraspecific