BIO 326 Lecture Notes - Lecture 3: Binomial Nomenclature, Entognatha, Apterygota
14 Dec 2017
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Document Summary
Developed classification system based on observable characteristics as well as binomial nomenclature and hierarchical classification. Developed modern concept of insect orders, using the mouthparts for classification: p. latreille (1762-1833) Developed modern concept of insect families, using more eclectic mixture of characters than fabricius. First to attempt a natural classification of the arthropods. Classification based on evolutionary relationships, disrupting much of stability in nomenclature. Last to attempt a classification of all insect orders, until . Published first complete insect phylogeny using molecular evidence. Entognatha are named for their entognathous mouthparts, i. e. , retracted inside the head. Most primitive form of mouthparts, suited to organisms that feed underground on fungi and litter. All insects have ectognathous mouthparts, i. e. , the mouthparts are exposed. More complex mouthparts facilitate a greater diversity of feeding strategies, expansion into different habitats. Apterygota are named for their lack of wings, and share flightlessness with the ancestral.
