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Two New Species of Cicadatra (Hemiptera: Cicadoidea) from Greece

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Two New Species of Cicadatra (Hemiptera: Cicadoidea) from Greece bs_bs_banner Entomological Science (2013) 16, 83–90 doi:10.1111/j.1479-8298.2012.00540.x ORIGINAL ARTICLE Two new species of Cicadatra (Hemiptera: Cicadoidea) from Greece Paula Cristina SIMÕES1, Allen SANBORN2 and José Alberto QUARTAU1 1Centro de Biologia Ambiental, Departamento de Biologia Animal, Faculdade de Ciências da Universidade de Lisboa, Lisboa, Portugal; and 2Department of Biology, Barry University, Miami Shores, Florida, USA Abstract The present study is the description of two new species of Cicadatra Kolenati, 1857 found in some Greek islands during the summers of 1998 and 2001. Cicadatra icari sp. n. is described from Ikaria and Samos and Cicadatra karpathosensis sp. n. from Karpathos. Description of the external morphology is provided. The male genitalia were dissected for close examination and illustration. Acoustic signals produced by males were recorded and analyzed and a description of the calling songs is provided. Discrimination from the closely allied species is also provided. Key words: calling song, cicadas, morphology, taxonomy INTRODUCTION Along the Mediterranean basin, the Aegean Sea islands and the Balkans constitute a high diversity area Cicadas constitute the superfamily Cicadoidea, a group which offered a number of important refugia during the of the Hemiptera Auchenorrhyncha where males typi- last glacial period, and hence where several taxa might cally communicate during pair formation and courtship have evolved and from where species might have through acoustic distinctive signals (Claridge 1985; dispersed, namely in Europe (e.g. Oosterbroek 1994; Boulard & Mondon 1995; Quartau et al. 1999; Simões Taberlet et al. 1998; Hewitt 1999; Çiplak 2004; et al. 2000). These striking acoustic signals make them Augustinos et al. 2005). However, only sporadic atten- an easily recognized group of insects. However, despite tion has been given to cicadas of this area, namely to being common and usually medium to large insects, species of the genera Cicada Linnaeus, 1758 (e.g. cicadas are not easily seen in the field and the taxonomy Quartau & Simões 2005; Simões & Quartau 2007), and biology of the group are in general still poorly Cicadetta Kolenati, 1857 (Gogala & Drosopoulos 2007; known. This is the case of the Mediterranean region, Gogala et al. 2008, 2009, 2011) and Tettigetta Kolenati, notwithstanding the considerable effort that has been 1758 (Boulard 2000; Trilar & Gogala 2010). In fact, made by different authors in studying this cicadofauna, despite the presence of some other genera in the region, such as Sueur et al. (2004) for Portugal, Puissant and very little is known about their species as is the case for Sueur (2010) for Spain, Sueur and Puissant (2007) for species of the genus Cicadatra Kolenati, 1857. France, Hertach (2011) for Italy, Gogala and Drosopou- With a wide geographic distribution, Cicadatra is one los (2007), Gogala et al. (2008, 2009, 2011) for Greece, of the largest cicada genera in the Mediterranean area, Gogala et al. (2006) for Macedonia, and Puissant and with more than 40 species already known. In recent Sueur (2002) for Turkey. years some new species were described from nearby Iran (Mozaffarian & Sanborn 2010; Mozaffarian et al. 2010), but in Greece only four species and three subspe- Correspondence: Paula Cristina Simões, Centro de Biologia Ambiental, Departamento de Biologia Animal, Faculdade de cies of Cicadatra have been recorded so far: C. alhageos Ciências da Universidade de Lisboa, Lisboa, Portugal. (Kolenati, 1857), C. atra atra (Olivier, 1790), C. atra Email: [email protected] hyalinata (Brullé, 1832), C. atra vitrea (Brullé, 1832), Received 31 March 2012; accepted 7 June 2012. C. platyptera Fieber, 1876 and C. hyalina (Fabricius, © 2012 The Entomological Society of Japan P. C. Simões et al. 1798) (Nast 1972; Drosopoulos 1980; Boulard 1992; RESULTS Mozaffarian & Sanborn 2010). The present study is based on fieldwork carried out by The higher classification proposed by Lee and Hill two of the authors on different Greek islands (Samos (2010) is followed. and Ikaria, JAQ) and (Karpathos, PCS). During these Taxonomy trips several specimens were collected and the acoustic Family Cicadidae Latreille, 1802 signals produced by males recorded. Analysis of the Subfamily Cicadinae Latreille, 1802 morphological and acoustic data revealed the presence Tribe Cicadatrini Distant, 1905 of two new species, descriptions of which are here pre- Genus Cicadatra Kolenati, 1857 sented along with notes on their biology. Cicadatra icari sp. n. (Figs 1–3) Type material MATERIAL AND METHODS Greece. Holotype, male, Ikaria, 11.vii.1998, col. J.A. Quartau (IICT); paratype, female, Ikaria, 11.vii.1998, Adults of the Cicadatra species were collected in col. J.A. Quartau (IICT); remaining paratypes – Ikaria, 1 summer during fieldwork carried out in several Greek male, 11.vii.1998, col. J.A.Quartau (JAQC); 1 male, islands. A total of twelve islands were visited, with the 12.vii.1998, col. J.A.Quartau (JAQC); Samos, 1 male, specimens here studied found on Samos and Ikaria 14.vii.1998, col. J.A.Quartau (AFSC). (1998) and on Karpathos (2001). Males were first located by their acoustic signals. Their songs were Etymology recorded and insects were finally collected. Recordings The species is named after Icarus, son of Daedalus in the were made during the warmest hours of the day, at Greek mythology, from whom the name of the island ambient temperatures that ranged from 29 to 33°C was derived and where most of the specimens were using a Sony Dat recorder TCD-D10 ProII (sampling collected. frequency 48 kHz, frequency response 20–22 kHz) with a Sony microphone F-780 (frequency response 22–50 kHz) following the procedures given in Quartau et al. (1999). Acoustic recordings are kept with one of the authors (JAQ) in the general data bank on insect acoustic data, which he has maintained since 1988. Sound recordings were analyzed in time and fre- quency domains and shown as oscillograms, sonograms and spectra using Avisoft Sas-Lab Pro software (Specht 2002) as in previous analyses (Quartau et al. 1999, 2000; Simões et al. 2000). In the frequency domain, spectra were computed with a resolution of 512 points of FFT-length and a hamming window. For each male, recordings of about one minute were analyzed. Song terminology follows that of Gogala and Trilar (1999, 2000) and Gogala and Popov (2000). Description of the general morphology is provided below. The male genitalia have been dissected and some of their structures illustrated, with emphasis given to the aedeagus. This is a structure of particular taxo- nomic interest since it provides useful morphological characters to discriminate species within the Auchenor- rhyncha (e.g. Quartau 1981, 1988; Claridge et al. 1997). Figure 1 Cicadatra icari sp. n. (A) Paratype male habitus. (B) Paratype male dorsum. (C) Paratype male operculum. (D) Specimens are deposited in the Instituto de Investi- Paratype male timbal cover. (E) Holotype male lateral view of gação Científica Tropical, Lisbon (IICT), the Quartau genitalia. (F) Holotype male claspers. Scale for A = 2 cm, collection (JAQC) and the Sanborn collection (AFSC). B–C = 2 mm, D = 1 mm, E–F = 0.05 mm. 84 Entomological Science (2013) 16, 83–90 © 2012 The Entomological Society of Japan New species of Cicadatra from Greece plates of thorax also dark brown. (A) Legs.Brown with brownish yellow longitudinal areas. Segments usually paler at base and darker towards apex. Forefemur with three large spines and sometimes with a (B) fourth small apical spine. Primary spine longer and thicker than the remaining ones. Operculum (Fig. 1C). Large, rounded, dark brown, not Figure 2 Continuous calling song of a male of Cicadatra icari meeting medially. sp. n. from Ikaria; (A) oscillogram and (B) sonogram of a Wings (Fig. 1A). Forewings hyaline and with brown selection of 1.4 s and amplitude spectra showing audible fre- to yellowish brown venation. Veins becoming darker quencies ranging from about 5 to 17 kHz with the maximum energy value at a frequency of 9.4 kHz. distally. Median vein 3 + 4 particularly darker and thicker in males. Sometimes with a small infuscation in radiomedial and radial crossveins. Hind wings transparent and with veins brownish yellow, infusca- (A) tion on radiomedial and radial crossveins of some paratypes. Abdomen. With blackish brown tergites, abdominal (B) sternites and epipleurites with dark brown color and with yellowish areas on lateral margins. Timbals with ten golden ribs and with dark brown, oval shape, incom- plete timbal covers (Fig. 1D). Figure 3 Short echeme song of a male of Cicadatra icari sp. n. Male genitalia (Fig. 1E,F). Pygofer dark brown with from Ikaria; (A) oscillogram and (B) sonogram of a selection of 1.4 s and amplitude spectra showing audible frequencies of the dorsal beak defined as a spine and projecting beyond song ranging from about 5 to 17 kHz with the maximum anal styles. Distal shoulder of the pygofer elongated in energy value at a frequency of 8.5 kHz. the form of a particularly thin spine. Pygofer without basal lobe. Uncus short. Brown claspers close to each other, almost meeting medially and becoming further Description apart distally (Fig. 1F). Aedeagus with apical append- Coloration. Externally very similar to most congeneric ages: one separate membranous expansion with four species, with body from black to dark brown (Fig. 1A). bending star-like spines, one of which is usually bigger In general structure and coloration similar in male and than the remaining; two others much longer projections female. extend apically, the longest one with a claw-like append- Head (Fig. 1B). General color blackish brown. Head age at its base. including eyes narrower than mesonotum but as broad Measurements. Length (measured from the apex of as anterior margin of pronotum. Compound eyes brown crown to tips of the tegmina in position of rest alongside to greenish brown and ocelli reddish. Postclypeus the body): male, 29–31 mm (mean 30.0 mm; n = 4); dark brown, sometimes light brown around transverse female, 29 mm (n = 1); forewing length: male, 24– grooves.
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