Insect pupae do not feed. Pyrethroids These are synthetic compound produced to duplicate or improve more or less successfully on the biological activity of the active principles of the pyrethrum plant. S Segment A ring of subdivision of the body or of an appendage between areas of flexibility associated with muscle attachments. A hardened, hairlike projection surrounded at the base by a small ring. Species The basic unit of classification in biology.
Examples are the bald eagle, the polar bear, the monarch butterfly, and the tawny mole cricket.
Species are grouped into genera , and genera are grouped into family . The words kind, sort, type, strain , and variety are not part of this classification even though newspaper reporters often use them as if they were. These arthropods are not insects, but are in the same order as ticks. They are very small and require strong hand lens to see. Most are plant feeders and can do considerable damage.