. The anatomy of the honey bee. Insects; Bees; Bees Anatomy; Honeybee Anatomy. 12 THE ANATOMY OF THE HONEY BEE. tion of a form with complex organs from the simple protoplasmic mass of the egg. The part of development that takes place in the eggshell is known as embryonic development; that which takes place subsequent to hatching is known as postembryonic development. In insects there are often two stages in the postembryonic development, an active one called the larval stage and an inactive one called the pupal stage. During the first of these the young insect is termed a larva; during the sec
. The anatomy of the honey bee. Insects; Bees; Bees Anatomy; Honeybee Anatomy. 12 THE ANATOMY OF THE HONEY BEE. tion of a form with complex organs from the simple protoplasmic mass of the egg. The part of development that takes place in the eggshell is known as embryonic development; that which takes place subsequent to hatching is known as postembryonic development. In insects there are often two stages in the postembryonic development, an active one called the larval stage and an inactive one called the pupal stage. During the first of these the young insect is termed a larva; during the second, a pupa. When there is no resting stage the immature creature is often called a nymph. The final and fully de- veloped form is an adult, or imago. Since this paper is to deal only with the anatomy of the adult, the attractive fields of embryonic and postembryonic development must be passed over, except for a few statements on fundamental embryonic structure, a knowledge of which is necessary to a proper understanding of the adult anatomy. When the embryo, in its course of development, first takes on a form suggestive of the definitive insect, it consists of a series of segments called metameres, or somites, and shows no differentia- tion into head, thoracic, and abdominal regions. Typically, each segment but the first is provided with a pair of latero-ventral appendages, hav- ing the form of small rounded protuberances. These appendages are of different sizes and take on different shapes in different parts of the body, for some of them are destined to form the antennas, some the mouth parts, others the legs and perhaps the cerci, while the rest of them remain very small and finally disappear. What we know of the embryology of insects is based on the observations of a number of men who have worked mostly on the development of dif- ferent species. Their observations are not all alike, but this is probably due in large part to the fact that the embryos of different insects are
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