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Egg clutch patterning in Lestes virens （Odonata, Lestidae） with evolutionary emphasis on endophytic oviposition in lestid dragonflies

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Insect Science 2016年第6期23卷 893-902页

作者： Natalia A. Matushkina Denis Buy Philippe Lambret Department of Zoology Institute of Biology Taras Shevchenko National University of Kyiv Kyiv 01033 Ukraine Institute of Food Biotechnology and Genomics NAS of Ukraine Kyiv 04123 Ukraine Tour du Valat Research Centre Le Sambuc Aries 13200 France

Egg deposition within plants is one of the most widely distributed and ancient behaviors in Odonata. The resulting clutch consists of eggs placed in peculiar pattern that can be a characteristic for certain groups of Odonata. Despite their importance for paleontological and evolutionary research, data on egg-clutch positioning are missing or insufficient for most species. Here, patterning of egg clutches in Lestes virens was measured and described in detail for the first time. The female usually produces a linear row of single eggs directed at an angle rightward or leftward to the longitudinal axis of plant substrate. Less often eggs are arranged in egg-sets consisting of up to 4 eggs. Apparently, the female insect follows the rigid behavior stereotypes during oviposition and is unable to easily switch to the alternate stereotypical behavior of single egg deposition or production of multiegg sets. Based on a literature review and original data, egg clutch patterning of European Lestidae is overlaid on preexisting phylogenies. The resulting evolutionary scenario of egg-clutch patterning can be considered in the framework of egg-laying behavior in Lestidae.

关键词： behavior egg deposition endophytic oviposition evolution paleontology phylogeny

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山西中-晚二叠世叶片内寄生产卵的证据（英文）

山西中-晚二叠世叶片内寄生产卵的证据（英文）

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中国古生物学会第十二次全国会员代表大会暨第29届学术年会

作者：何学智万明礼王博黄建东 Jason Hilton 王军 Anhui Geological Museum State Key Laboratory of Palaeobiology and Stratigraphy(LPS) Nanjing Institute of Geology and PalaeontologyChinese Academy of Sciences School of Geography Earth and Environmental SciencesUniversity of Birmingham University of Chinese Academy of Sciences

Laying eggs into plant tissues(endophytic oviposition) is a common reproductive strategy among modern insect groups including Odonata,Orthoptera,Hemiptera,Coleoptera,Lepidoptera,and *** endophytic ovipositional behavior can protect eggs against predation,variations of wetness and *** the fossil record of endophytic oviposition from the Late Palaeozoic to Early Triassic is rare in comparison to that of the Late Mesozoic and Cenozoic,the evidence of leaf endophytic oviposition associated with seed plants are discovered from the Euramerica Flora,the Gondwana Flora and the Angara Flora during the late ***,to date,no data of leaf endophytic oviposition has been reported from the Cathaysia *** this contribution,the first evidences of leaf endophytic oviposition are described from the Cathaysia *** are derived from the Upper Shihhotse Formation of Mengjiagou section,which located at the northern margin of Qingshui Basin in the center Shanxi Province(Guadalupian – Lopingian,Permian).The ovipositional scar is elliptical or round with lengths of about 0.4 mm,deposited on leaves of Taeniopteris *** types of arrangement of the scars are *** A is arranged slightly in "S" shape or longitudinal row parallel the *** B is arranged in *** the basis of the arrangement of the ovipositional scars and their regular size and elliptical to round shapes,we infer that the tracemaker would probably be a member of the extinct odonatopteran suborder *** fossil record of Permian insects from China is extremely *** finding provides new insights into the ancient ovipositional behavior of dragonflies and diversity of Permian insects in China.

关键词： Cathaysia Flora endophytic oviposition plant-insect interaction middle to late Permian Qingshui Basin

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