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Insects have segmented bodies, jointed legs, and exoskeletons. They are distinguished from other arthropods by their body, which has three major regions: the head, the three-segmented thorax, and the many-segmented abdomen.
Physical Features. Insects are members of a larger group called the arthropods. This group also includes spiders, ticks, centipedes, lobsters, and crabs. Like all arthropods, insects have a body that is divided into segments, or sections. They also lack a skeleton inside the body.
Insect bodies have three segments: head, thorax (which bears three pairs of legs and usually two pairs of wings), and many-segmented abdomen. Many species undergo complete metamorphosis. There are two subclasses: Apterygota (primitive, wingless forms, including silverfish and bristletails) and Pterygota (more advanced, winged or secondarily ...
Despite their diversity, all adult insects share some basic external and internal anatomical features. Insects are distinguished from other members of the animal kingdom by having six legs; one pair of antennae; a ringed, or segmented, body; and three well-defined body regions.
Hymenopterans are any member of the third largest—and perhaps the most beneficial to humans—of all insect orders. More than 115,000 species have been described, including ants, bees, chalcids, sawflies, wasps, and lesser-known types.
Insect - Orders, Morphology, Behavior: The class Insecta has about 1,000,000 named species and is divided into the subclasses Apterygota and Pterygota. The homopteran and heteropteran orders are sometimes considered suborders of an order Hemiptera.
Arthropod, any member of the phylum Arthropoda, the largest phylum in the animal kingdom, which includes such familiar forms as lobsters, crabs, spiders, mites, insects, centipedes, and millipedes. About 84 percent of all known species of animals are members of this phylum.
Coleopteran, (order Coleoptera), any member of the insect order Coleoptera, consisting of the beetles and weevils. It is the largest order of insects, representing about 40 percent of the known insect species. Among the over 360,000 species of Coleoptera are many of the largest and most conspicuous.
ladybug, (family Coccinellidae), family of approximately 5,000 widely distributed species of beetles. The name originated in the Middle Ages, when the beetle was dedicated to the Virgin Mary and called “beetle of Our Lady.”. Taxonomy. Kingdom: Animalia.
Insects (class Insecta) have segmented bodies, jointed legs, and external skeletons. Insects are distinguished from other arthropods by their body, which is divided into three major regions: (1) the head, which bears the mouthparts, eyes, and a pair of antennae, (2) the three-segmented thorax,