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(Insecta Odonata) of the Islands of the Sicilian Channel, Including the First Re Biodiversity Journal , 2012, 3 (4): 459-478 Annotated checklist of the dragonflies (Insecta Odonata) of the islands of the Sicilian Channel, including the first re - cords of Sympetrum sinaiticum Dumont, 1977 and Pantala flavescens (Fabricius, 1798) for Italy Andrea Corso 1* , Ottavio Janni 2, Maurizio Pavesi 3, Michael Sammut 4, Arnold Sciberras 5 & Michele Viganò 6 1MISC - Via Camastra, 10 - 96100 Siracusa, Italy; e-mail: [email protected] 2Via G.G. D'Amore, n. 21 - 81016 Piedimonte Matese, Caserta, Italy 3Museo di Storia Naturale - Corso Venezia, 55 - 20121 Milano, Italy; e-mail: [email protected] 411, Sqaq Rigu, Birkirkara, BKR 2131, Malta; e-mail: [email protected] 524 'Camilleri Court' flat 5, il-Marlozz Str, Mellieħa (Ghadira), Malta; e-mail: [email protected] 6 MISC - Via Ongetta, 5 - 21010 Germignaga, Varese, Italia ; e-mail: [email protected] *Corresponding author ABSTRACT In this paper we report data on the historical and recent status of all dragonfly species (In - secta, Odonata) recorded for the Sicilian Channel islands: the Pelagie islands and Pantel - leria, 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 Ita - lian fauna, namely the Desert Darter Sympetrum sinaiticum , noticed through likely si - ghtings starting from 2010 on Lampedusa, and confirmed through voucher specimens collected in April 2012, and the Wandering Glider Pantala flavescens , first noticed in Oc - tober 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 an - nulata 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 . KEY WORDS Odonata; Sicilian Channel Islands; Sympetrum sinaiticum , Pantala flavescens ; new for Italy . Received 12.05.2012; accepted 22.12.2012; printed 30.12.2012 Proceedings of the 1 st International Congress “Insularity and Biodiversity”, 11 th -13 th May 2012, Palermo, Italy INTRODUCTION leria (Consiglio, 1960; Lohmann, 1989; Pavesi & Utzeri, 1995), while material from these islands is Because of local scarcity of aquatic biotopes, re - also briefly discussed in other works (Carchini & sulting in low species richness, the dragonfly fauna Di Domenico, 1992; Carfì & Terzani, 1993). Only (Insecta, Odonata) of the Italian islands of the Sici - 7 species are reported in the literature for the Italian lian Channel has received little attention. Indeed, islands of the Sicilian Channel, including one only there are only three publications specifically dealing known from historical records and considered lo - with the Odonata of the Pelagie islands and Pantel - cally extinct (Pavesi & Utzeri, 1995); of recently 460 A. C ORSO , O. J ANNI , M. P AVESI , M. S AMMUT , A. S CIBERRAS & M. V IGANÒ reported ones, only 2 were found to breed, and of other aspects of islands biodiversity, including Odo - these only 1 with a doubtless viable population. nata. This paper presents the results of our field This very low species richness no doubt largely re - work, together with an overview of existing publi - sults from near-absence of permanent or even tem - shed data. As a result of our field work, the number porary water bodies, suitable for Odonata breeding of species recorded for the Pelagie and Pantelleria and larval development. Yet a lot of dragonfly spe - has more than doubled, with 20 species, including cies are strong fliers, able to cover long distances 2 new for the Italian fauna. as occasional vagrants or regular true migrants, ABBREVIATIONS. AC = A. Corso; AS = A. more so when supported by favourable winds, and Sciberras; COM = Comino; GOZ = Gozo; LIN = Li - often also to breed, at least temporarily, even in ar - nosa; LMN = Lampione; LMP = Lampedusa; tificial, newly formed water bodies. Therefore the MAL = Malta; MISC (Malati di Isolitudine allo Sta - little number of recorded species is also due to li - dio Cronico) = a birding and nature group focused mited field work carried out over the years; on the on islands of Mediterranean Basin; MP = M. Pavesi; other hand, the number of actually occurring spe - MS = M. Sammut; MV = M. Viganò; OJ = O. Janni; cies may be subject to rapid changes, due to modi - PNT = Pantelleria. fications of local conditions, e.g. newly created suitable biotopes. Other insect groups attracted greater interest and have been the object of more MATERIALS AND METHODS detailed studies, in parallel with the situation on mainland Sicily (Corso, personal unpublished data), Taxonomy and nomenclature follow Dijkstra & which resulted in a clear, although limited, increase Lewington (2006) and Dijkstra & Kalkman (2012). in the number of recorded species. We consulted all the available literature on the The islands of the Maltese archipelago, com - Odonata of our study area, and analysed both re - pared to Pantelleria and the Pelagie, despite of in - cent and historical works in order to note any po - tensive habitat destruction still harbour many more pulation trends (increasing/decreasing/stable) and bodies of either fresh or brackish water, and local have a baseline checklist against which to compare Odonata received a greater deal of interest. Lite - our findings. rature about Malta and its satellite islands is varied Three of us (AC, OJ and MV) have visited Pan - and extensive; in addition to historical works (Val - telleria and the Pelagie in spring (February-May), letta, 1949, 1957), an increasing number of papers summer (June-August), autumn (September-No - in recent years focused on single species or on the vember), and a few winter visits in December and whole odonate fauna, including discussions of late January. More specifically, between April 2004 their biology and local status (Ebejer et al., 2008; and November 20 12 they have visited the Pelagie for Sciberras, 2008; 2011; Sciberras & Sammut, 2008; a total of almost 400 days, in the following periods: 2013; Sciberras et al., 2010; Gauci & Sciberras, April-May 2004, September-October 2005, March- 2010). This resulted in a more diverse known odo - May 2006, September-October 2006, March-May natological fauna, as far as certainly or supposedly 2007, September-October 2007, January 2008, breeding species are concerned: not less than 15 March-May 2008, June 2008, October-November of the 18 species so far recorded. Even so, further 2008, March-July 2009, September-November 2009, additions are to be expected, since climate changes January 2010, March-May 2010, October-November may result in formerly occasional or never found 2010, February-April 2011, July-August 2011, Oc - species becoming established, even with large po - tober-November 2011, October-November 2012. As pulations. For example, two of the present-day part of a LIPU-spo nsored study on raptor migration most abundant dragonflies, Orthetrum trinacria across the Mediterranean, they visited Pantelleria for and Trithemis annulata , were first recorded only 30-days periods in April-May 2005-2012 and Au - after 2000. gust-September 2008, during which they prospected From 2006 to 2012, we have visited the Pelagie all potentially suitable habitats, and as general rule islands and Pantelleria with the primary purpose of tried to cover as much ground as possible, in order gathering ornithological data, but we kept a high in - to find both odonates breeding in local water bodies terest in and have paid a great deal of attention to and migrating individuals. Occasional field trips Annotated checklist of the dragonflies (Insecta Odonata) of the islands of the Sicilian Channel 461 were also made by AS (April 2010 and September rain pool at Ponente, within the island’s nature re - 2010) and MP (November 2012). serve, a water-filled, shallow gravel pit at Albero As for Maltese islands, two of the authors (AS, Sole, a temporary pool at the mouth of a mostly MS) are resident on Malta, the largest one, and dry creek at Cala Pulcino, or again man-made were able to monitor the local odonate fauna all small water reservoirs (see below, under Sympe - over the last three decades. All species but very few trum fonscolombii ). Newly built-up water cat - have been photographed; voucher specimens for chments or reservoirs, to be kept filled with some many have also been collected and are now housed water throughout the year, where also aquatic ve - in the private collections of three of the authors getation may develop (e.g. within the Lampedusa (AC, MP and AS). Each specimen collected, whe - Island Natural Reserve), could indeed result in ther mounted or in an envelope, is accompanied by conspicuous increase of breeding species, with the following data: species (and subspecies if ap - some populations possibly becoming established. plicable), sex, locality (including GPS coordinates) Some species may also, at least occasionally, breed and date of collection, number of observed indivi - on Linosa, where no natural water bodies, yet here duals, collector (legit) and responsible for the iden - and there some small reservoirs exist. Lampione tification (det.). Determinations for each record, on the other hand is a
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