Prothorax
In this article we are going to explore the exciting world of Prothorax, a topic that has captured the attention of millions of people around the world. From its origin to its impact on modern society, Prothorax has played a crucial role in our history and daily lives. Over the years, various interpretations and perspectives on Prothorax have emerged, further enriching its value and relevance in different areas. Through this article, we will delve into the many facets of Prothorax, exploring its historical, cultural and social dimensions to better understand its influence and importance today.
The prothorax is the foremost of the three segments in the thorax of an insect, and bears the first pair of legs. Its principal sclerites (exoskeletal plates) are the pronotum (dorsal), the prosternum (ventral), and the propleuron (lateral) on each side. The prothorax never bears wings in extant insects (except in some cases of atavism), though some fossil groups possessed wing-like projections. All adult insects possess legs on the prothorax, though in a few groups (e.g., the butterfly family Nymphalidae) the forelegs are greatly reduced. In many groups of insects, the pronotum is reduced in size, but in a few it is hypertrophied, such as in all beetles (Coleoptera). In most treehoppers (family Membracidae, order Hemiptera), the pronotum is expanded into often fantastic shapes that enhance their camouflage or mimicry. Similarly, in the Tetrigidae, the pronotum is extended backward to cover the flight wings, supplanting the function of the tegmina.
See also
References
- ^ Medved, Victor; Marden, James; Fescemyer, Howard; Der, Joshua; Liu, Jin; Mahfooz, Najmus; Popadic, Aleksander (December 2015). "Origin and diversification of wings: Insights from a neopteran insect". Proceedings of the National Academy of Sciences of the United States of America. 112 (52): 15946–15951. Bibcode:2015PNAS..11215946M. doi:10.1073/pnas.1509517112. JSTOR 26466262. PMC 4702999. PMID 26668365. Retrieved 19 November 2020.
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