The structure of the cephalic foregut of Neopachygaster (Diptera, Stratiomyidae, Pachygasterinae)

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• 作者：A. A. Panov (1)
  
• 刊名：Entomological Review
• 出版年：2006
• 出版时间：June 2006
• 年：2006
• 卷：86
• 期：5
• 页码：598-600
• 全文大小：211KB
• 参考文献：1. Panov, A.A., 鈥淗istological Structure of the Cibarial Pump and Cephalic Part of Stomodeum in Adults of Asilomorpha (Diptera): 2. Xylophagidae, Xylomyidae, and Stratiomyidae,鈥?Zool. Zh. 80(11), 1355鈥?366 (2001) [Entomol. Rev. 81 (8), 1022鈥?033 (2001)].
  2. Panov, A.A., 鈥淗istological Structure of the Skeletal Structures and Musculature in the Clypeo-Cibarium and Labrum of Lower Asilomorpha (Diptera): 2. Stratiomyoidea,鈥?Zool. Zh. 84(7), 850鈥?69 (2005) [Entomol. Rev. 85 (8), 859鈥?77 (2005)].
  3. Rozko拧ny, R., / A Biosystematic Study of the European Stratiomyidae (Diptera) (Dr. W. Junk Publ., The Hague etc., 1982), Vols. 1, 2.
  
• 作者单位：A. A. Panov (1)
  
  1. Severtsov Institute of Ecology and Evolution, Russian Academy of Sciences, Moscow, 117071, Russia
  

文摘

The cephalic portion of the foregut of Neopachygaster is clearly subdivided into the pharynx and oesophagus. The precerebral pharynx is transformed into a well-developed anterior pharyngeal pump with two unpaired dilators and an intrinsic layer of the muscle fibers. There are two pairs of the posterior pharyngeal dilators, attached to the pharynx just behind the brain. According to these features, the pharynx of Neopachygaster has the most plesiomorphic structure among all the members of Stratiomyidae studied so far.