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      A new species of Neopanorpa with an extremely long notal organ from Sichuan, China (Mecoptera, Panorpidae)

      research-article
      1 ,
      ZooKeys
      Pensoft Publishers
      Gonostylus, Insecta, mating behavior, postnotal organ

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          Abstract

          Abstract

          Neopanorpa setigera sp. n. is described and illustrated from Sichuan, China. It is characterized by an extremely long notal process, a well-developed postnotal organ, and a pair of setiferous gonostyli. This is the second species of Neopanorpa van der Weele with an extremely long notal organ in Sichuan. A key to Sichuan species of Neopanorpa is provided.

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          Biology of the Mecoptera

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            The notal organ of the scorpionfly (Panorpa vulgaris): an adaptation to coerce mating duration

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              Mating Behaviour and Copulatory Mechanism in the Scorpionfly Neopanorpa longiprocessa (Mecoptera: Panorpidae)

              Sexual conflict during copulation may drive morphological and behavioral evolution in insects. Although nuptial feeding behaviour is well studied in Panorpa, whether this behaviour is universal in Panorpidae remains unknown. The scorpionfly Neopanorpa longiprocessa Hua & Chou, 1997 was investigated for its mating behaviour, functional morphology of the notal organ, and external genitalia using light microscopy and scanning electron microscopy. The results show that the mating behaviour is not associated with nuptial feeding in N. longiprocessa. The morphological basis of this non-nuptial copulation is likely related to the developed notal organ of the male. The notal organ serves a function to seize wings of the female during copulation. Only males that succeed in seizing the female with the notal organ are able to establish genital contact and copulate. The male genitalia exhibit distinct species-specific modification. The epandrium (tergum IX) has evolved a pair of ventral bulbs to grasp the subgenital plate of the female. The hypandrium (sternum IX) has a pair of dorsal processes to control the abdominal end of the female. These results indicate that nuptial feeding is not a universal behaviour in Panorpidae. Presumably, these grasping apparatuses compensate the scorpionflies that fail to provide nuptial gifts, as exemplified by N. longiprocessa.
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                Author and article information

                Journal
                Zookeys
                Zookeys
                ZooKeys
                ZooKeys
                Pensoft Publishers
                1313-2989
                1313-2970
                2018
                18 April 2018
                : 750
                : 131-140
                Affiliations
                [1 ] Key Laboratory of Plant Protection Resources and Pest Management, Ministry of Education, Entomological Museum, Northwest A&F University, Yangling, Shaanxi 712100, China
                Author notes
                Corresponding author: Bao-Zhen Hua ( huabzh@ 123456nwafu.edu.cn )

                Academic editor: B. Price

                Article
                10.3897/zookeys.750.23486
                5916897
                f1a2cd4a-3918-49e1-a574-a75fadb904e6
                Meng Wang, Bao-Zhen Hua

                This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

                History
                : 8 January 2018
                : 26 March 2018
                Categories
                Research Article
                Invertebrata
                Mecoptera
                Panorpidae
                Systematics
                Central Asia

                Animal science & Zoology
                gonostylus,insecta,mating behavior,postnotal organ,animalia,mecoptera,panorpidae
                Animal science & Zoology
                gonostylus, insecta, mating behavior, postnotal organ, animalia, mecoptera, panorpidae

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