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The insect body is divided into three parts: the head, thorax, and abdomen. [2] The head is specialized for sensory input and food intake; the thorax, which is the anchor point for the legs and wings (if present), is specialized for locomotion; and the abdomen is for digestion , respiration , excretion , and reproduction.
Tympanal organ on the tibia of the katydid Zabalius aridus Tympanal organ of two species of moths, ventral view of abdomen (Tineidae and Pyralidae). A tympanal organ (or tympanic organ) is a hearing organ in insects, consisting of a tympanal membrane stretched across a frame backed by an air sac and associated sensory neurons. [1]
A pair of mating D. femorata in the Hudson Highlands region of New York. The common walkingstick is a slender, elongated insect that camouflages itself by resembling a twig. . The sexes differ, with the male usually being brown and about 75 mm (3 in) in length while the female is greenish-brown, and rather larger at 95 mm (3.7 i
An insect uses its digestive system to extract nutrients and other substances from the food it consumes. [3]Most of this food is ingested in the form of macromolecules and other complex substances (such as proteins, polysaccharides, fats, and nucleic acids) which must be broken down by catabolic reactions into smaller molecules (i.e. amino acids, simple sugars, etc.) before being used by cells ...
Print/export Download as PDF; Printable version; ... Pages in category "Insect anatomy" The following 122 pages are in this category, out of 122 total.
A few taxa of the Trichoptera (caddisflies), which are the sister group to the Lepidoptera, have hair-like scales, but always on the wings and never on the body or other parts of the insect. [13] Caddisflies also possess caudal cerci on the abdomen, a feature absent in the Lepidoptera. [7]
In insects, the sterna are usually single, large sclerites, and external. However, they can sometimes be divided in two or more, in which case the subunits are called sternites , [ 1 ] and may also be modified on the terminal abdominal segments so as to form part of the functional genitalia , in which case they are frequently reduced in size ...
An imaginal disc is one of the parts of a holometabolous insect larva that will become a portion of the outside of the adult insect during the pupal transformation to the imago. [1] Contained within the body of the larva, there are pairs of discs that will form, for instance, the wings or legs or antennae or other structures in the adult.