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Ottavio Janni

  • Biodiversity Journal, 8 (1): 033-038

    Andrea Corso, Ottavio Janni, Maurizio Pavesi & Michele Viganò
    Update to the status of Pantala flavescens (Fabricius, 1798) and Trithemis kirbyi Selys, 1891 for Italy and Central Mediterranean basin (Odonata Libellulidae)

    ABSTRACT
    An overview of the records of Pantala flavescens and Trithemis kirbyi for the Sicilian Channel islands and mainland Sicily, with comments on their possible status in this area, is provided. In light of the number of observed individuals, P. flavescens is likely to be regular in the studied area, with up to 30 individuals recorded per year since autumn 2012. Trithemis kirbyi, conversely, is only known from few scattered records, so that its status in the area remains to be elucidated. No evidence of reproductive behaviour nor of actual breeding in this area was hitherto found for any of the two species.

  • Biodiversity Journal, 3 (4): 459-478

    Andrea Corso, Ottavio Janni, Maurizio Pavesi, Michael Sammut, Arnold Sciberras & Michele Viganò
    Annotated checklist of the dragonflies (Insecta Odonata) of the islands of the Sicilian Channel, including the first records of Sympetrum sinaiticum Dumont, 1977 and Pantala flavescens (Fabricius, 1798) for Italy

    ABSTRACT
    In this paper we report data on the historical and recent status of all dragonfly species (Insecta, Odonata) recorded for the Sicilian Channel islands: the Pelagie islands and Pantelleria, politically belonging to Italy, and Maltese Archipelago islands. The number of species known for the former group of islands raises from 7 to 20. Of these, 2 are new for the Italian fauna, namely the Desert Darter Sympetrum sinaiticum, noticed through likely sightings starting from 2010 on Lampedusa, and confirmed through voucher specimens collected in April 2012, and the Wandering Glider Pantala flavescens, first noticed in October 2012 on Lampedusa and Linosa; while Calopteryx sp. cf. haemorrhoidalis, Ischnura genei, Aeshna mixta, Orthetrum nitidinerve, Orthetrum coerulescens anceps, Crocothemis erythraea, Sympetrum striolatum, S. meridionale, Brachythemis impartita, Trithemis annulata and T. kirbyi, already known for Italy, are new for the Italian islands of the Sicilian channel. The Maltese fauna includes at present 18 recorded species; the previously reported Trithemis arteriosa is to be deleted from the list, since the concerned specimen upon re-examination proved to be T. annulata.