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      Variation in the number of testicular follicles and ovarioles among 18 lacewing species of the families Myrmeleontidae, Ascalaphidae, and Nemopteridae (Insecta, Neuroptera, Myrmeleontiformia)

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          Abstract

          Abstract

          The representatives of the lacewing families Myrmeleontidae , Ascalaphidae , and Nemopteridae (the suborder Myrmeleontiformia ) were studied with reference to the number of testicular follicles in males and the number of ovarioles in females. We have found that the number of follicles is highly variable, at least in the first two families. In the comparatively more fully explored family Myrmeleontidae , the species studied have three to several hundred follicles per testis, the dominant values being six and five. In Ascalaphidae , two main patterns were revealed: testes with a low number of follicles (six and twelve per testis) and testes with multiple follicles (several dozens). Moreover, differences in the follicle number were often observed both between males of the same species and different testes of a male. In Nemopteridae , considered a sister group to the [ Myrmeleontidae + Ascalaphidae ] clade, the testes in males were found to consist of six or five follicles each. This implies that a low number of follicles, most likely six, is an ancestral trait in Myrmeleontiformia . All other numbers are thus the derived traits and are probably due to a simple oligomerization or a simple polymerization, the latter process having been very intensive in the evolution of the suborder. Conversely, females were found to have ten ovarioles per ovary in each of the three families studied.

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          Most cited references 62

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          Cladistic analysis of Neuroptera and their systematic position within Neuropterida (Insecta: Holometabola: Neuropterida: Neuroptera)

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            What limits insect fecundity? Body size- and temperature-dependent egg maturation and oviposition in a butterfly

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              The Insect Ovary

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                Author and article information

                Contributors
                Journal
                Zookeys
                Zookeys
                2
                urn:lsid:arphahub.com:pub:45048D35-BB1D-5CE8-9668-537E44BD4C7E
                urn:lsid:zoobank.org:pub:91BD42D4-90F1-4B45-9350-EEF175B1727A
                ZooKeys
                Pensoft Publishers
                1313-2989
                1313-2970
                2019
                03 December 2019
                : 894
                : 33-51
                Affiliations
                [1 ] Zoological Institute, Russian Academy of Sciences, Universitetskaya emb. 1, 199034, St. Petersburg, Russia Zoological Institute, Russian Academy of Sciences St. Petersburg Russia
                [2 ] Institute of Systematics and Evolution of Animals, Polish Academy of Sciences, Sławkowska 17, 31-016, Kraków, Poland Institute of Systematics and Evolution of Animals, Polish Academy of Sciences Kraków Poland
                [3 ] Prikaspiyskiy Institute of Biological Resources, Dagestan Scientific Centre, Russian Academy of Sciences, M. Gadzhieva street 45, 367025, Makhachkala, Russia Prikaspiyskiy Institute of Biological Resources, Dagestan Scientific Centre, Russian Academy of Sciences Makhachkala Russia
                [4 ] Scientific Center of Zoology and Hydroecology NAS RA, P. Sevak 7 Yerevan 0014, Armenia Scientific Center of Zoology and Hydroecology Yerevan Armenia
                Author notes
                Corresponding author: Valentina Kuznetsova ( valentina_kuznetsova@ 123456yahoo.com )

                Academic editor: S. Grozeva

                Article
                47040
                10.3897/zookeys.894.47040
                6904352
                Valentina G. Kuznetsova, Anna Maryańska-Nadachowska, Gadzhimurad N. Khabiev, Gayane Karagyan, Victor A. Krivokhatsky Krivokhatsky

                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.

                Categories
                Research Article
                Insecta
                Myrmeleontiformia
                Neuroptera
                Evolutionary Biology
                World

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