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ConservaZione invertebrati 5: 255–268 (2011) CnbFvr Notes on , and from (, )*

Fabio CIANFERONI Museo di Storia Naturale dell'Università degli Studi di Firenze, Sezione di Zoologia "La Specola", Via Romana 17, I­50125 Florence, . E­mail: fabio.cianferoni@unifi .it; [email protected]

*In: Nardi G., Whitmore D., Bardiani M., Birtele D., Mason F., Spada L. & Cerretti P. (eds), of Marganai and Montimannu (Sardinia). Research in the framework of the ICP Forests network. Conservazione Habitat Invertebrati, 5: 255–268.

abstraCt

Records of 22 from Sardinia of Gerromorpha, Nepomorpha and Leptopodomorpha are provided. For each species, detailed records, chorotype, Italian distribution and notes are reported. New updated checklists of the Gerromorpha (13 species), Nepomorpha (26 species) and Leptopodomorpha (16 species) of Sardinia are also given, and doubtful taxa records are discussed. (Plesiovelia) muelleri Tamanini, 1947 () is excluded from the fauna of Sardinia.

Key words: Gerromorpha, Nepomorpha, Leptopodomorpha, Sardinia, Italy, checklist, chorotypes, polymorphism.

riassuNto

Note su Gerromorpha, Nepomorpha e Leptopodomorpha di Sardegna (Hemiptera, Heteroptera)

Nel presente articolo sono riportate segnalazioni per la Sardegna relative a 22 specie di Gerromorpha, Nepomorpha e Leptopodomorpha. Per ciascuna specie trattata sono riportati i materiali esaminati, il corotipo, la distribuzione italiana ed eventuali note. È inoltre stilata una checklist ag- giornata e ragionata dei Gerromorpha (13 specie), Nepomorpha (26 specie) e Leptopodomorpha (16 specie) di Sardegna, integrata con discussioni sui taxa la cui presenza risulta dubbia o da confermare. Velia (Plesiovelia) muelleri Tamanini, 1947 (Veliidae) è esclusa dalla fauna della Sardegna.

INTRODUCTION Their systematic knowledge is quite good in Italy, but taxonomic problems exist. Faunistically, Italy Infraorders Gerromorpha, Nepomorpha and Lep- needs further investigations, especially in the south- topodomorpha belong to the suborder Heteroptera, ern regions. Hemiptera. The order also includes four other No specifi c studies on these groups in Sardinia had monophyletic suborders: , Cicado- been previously published. Records of the taxa can be morpha, Fulgoromorpha and (Bour- found in some contributions on Hemiptera of Sar- goin & Campbell 2002). dinia (e.g. Singer & Mancini 1938; Singer 1940) or The three infraorders represent signifi cant groups for in Costa's works on the island (Costa 1882, 1883, water (Polhemus & Polhemus 2008) with 1884, 1886), which represent the fi rst account on almost 5,000 described species and subspecies world- the Sardinian fauna, and in Servadei (1952), a fun- wide and about 115 (belonging to 16 families) in Italy. damental work on Sardinian Hemiptera, in which Most of the species inhabit freshwater or marine bi- all most relevant contributions were reported. The otopes and so they are the "aquatic Heteroptera" sensu current status of the three infraorders on the island Polhemus & Polhemus (2008); a small proportion is is mainly known from the review works of Servadei not water dependent, sometimes with strictly terres- (1952, 1967), Bacchi & Rizzotti Vlach (2005, 2007) trial and xerothermic elements (mostly in the Lep- and Carapezza & Faraci (2005, 2007). Further fau- topodomorpha). nistic data can be found in sporadic contributions (cf.

255 Fabio Cianferoni

Ferrari 1888; Marcialis 1892; Champion 1911; Pois- 1995). The Sardo-Corso-Balearic chorotype (SCBA), son 1938; Tamanini 1948; Grandi 1957; Serra & Ta- subgroup of the W-Mediterranean chorotype, was gliasacchi Masala 1980; Margraf & Maass 1982; Pis- newly created. ano et al. 1982; Prota 1993; Zimmermann & Scholl Italian distributions were obtained by combining 1993; Santamaria & Rossi 1999; Pisano et al. 2003; records found in Servadei (1967), Bacchi & Rizzotti Fonnesu et al. 2005a, 2005b; Nuvoli et al. 2007), Vlach (2005, 2007) and Carapezza & Faraci (2005, whereas some records are reported in general works 2007); data deriving from other sources are indicated (cf. Péricart 1990; Faraci & Rizzotti Vlach 1992). in the text. Other important accounts with records for the region Data in the Italian editions of Bacchi & Rizzotti are Servadei's Catalogue (1967) with many old cita- Vlach (2005) and Carapezza & Faraci (2005) are tions, Tamanini's Guide (1979) and "Fauna Euro- identical to those in the following English editions: paea" (Aukema 2011). Bacchi & Rizzotti Vlach (2007) and Carapezza & Fifty-five species of these groups of Heteroptera, be- Faraci (2007); because of this in the text only the Ital- longing to 13 families, are at present recorded for ian version is reported. Sardinia: Gerromorpha – (7 species), Heb- Records are listed by province (in alphabetical order), ridae (1), (1), (1), Veli- followed by locality, altitude (when known), date of idae (3); Nepomorpha – (13), Micronecti- collection (when known), collector (when known), dae (2), (2), (2), number of specimens, sex and larval instar, and collec- (6), (1); Leptopodomorpha – tion (in brackets). The current subdivision into eight (3), (13) (Servadei 1952, 1967; Bacchi provinces is used (cf. Bardiani 2011). & Rizzotti Vlach 2005, 2007; Carapezza & Faraci Under the examined material, chorotype, Italian 2005, 2007). distribution and notes (especially on polymorphism when present) are also given for each species. All material is stored at the Centro Nazionale per lo MATERIAL AND METHODS Studio e la Conservazione della Biodiversità Forestale "Bosco Fontana" (Marmirolo, Italy), at the Museo di This paper concerns Hemiptera Heteroptera of the Storia Naturale dell'Università degli Studi di Firenze infraorders Gerromorpha, Nepomorpha and Lep- (Sezione di Zoologia "La Specola") (Florence, Italy) topodomorpha. The aim of this article is to add new and in my private collection (CFC). Further infor- data to the knowledge of these in Sardinia and mation (UTM coordinates, etc.) on sites sampled by also to create an updated checklist for the island, con- CNBFVR staff are provided by Bardiani (2011). sidering the few published records for these groups. An updated and reasoned checklist of the Gerromor- The contribution is mainly based on field trips car- pha, Nepomorpha and Leptopodomorpha recorded ried out from 2003 to 2008 by CNBFVR staff (cf. from Sardinia and their relative chorotypes is provid- Mason et al. 2006; Cerretti et al. 2009; Bardiani ed. This list is based on Servadei (1952, 1967), Bac- 2011) and on specimens held in my collection (CFC) chi & Rizzotti Vlach (2005) and Carapezza & Faraci and in the collection of Museo di Storia Naturale (2005), integrated with Poisson (1928, 1933) and dell'Università degli Studi di Firenze (Sezione di Zoo- Jansson (1995) and by my personal observations (see logia "La Specola"). notes of checklist). Only reliable records are reported Samplings were widely carried out in aquatic biotopes in the checklist. Doubtful records are excluded from using water nets. the list as indicated in its introduction. The systematic order of upper-level taxa follows Schuh & Slater (1995), with the exception of Micro- nectidae which are considered a according to ABBREVIATIONS Nieser (2002). Under-family nomenclature and sys- tematics follow Andersen (1995), Jansson (1995), Collectors. AK = A. Krausse; AM = A. Campanaro; AN = A. Lindskog (1995), Polhemus (1995a, 1995b, 1995c, Nistri; AT = A. Targioni Tozzetti; BC = B. Cipriani; BL = B. 1995d) and Andersen & Weir (2003). Lanza; CC = C. Corti; DB = D. Birtele; DW = D. Whitmore; Chorotypes, assigned according to Vigna Taglianti EMa = E. Marras; ET = E. Talenti; FT = F. Terzani; GCe = G. et al. (1993, 1999) and Vigna Taglianti (2005) with Cesaraccio; GMa = G. Mazza; GMs = G. Masuri; GN = G. indication of possible extensions, were derived from Nardi; LF = L. Fancello; L? = no collector mentioned; MA = M. the geonemies found in the "Catalogue of the Heter- Armeni; MB = M. Bardiani; MTr = M. Trizzino, PA = P. Audisio; optera of the Palaearctic Region" (Aukema & Rieger PCe = P. Cerretti; PCo = P. Cornacchia; PLa = P. Lanza; PM = P.

256 Notes on Gerromorpha, Nepomorpha and Leptopodomorpha from Sardinia (Hemiptera, Heteroptera)

Malenotti; RB = R. Brizzi; RC = R. Cipriani; RSe = Regia Stazi- Riu Tolovisco, 760 m, 20.III.2008, RC BC, wn, 1 ♂ 1 ♀ brach one Entomologica; SCa = S. Campanelli; SCi = S. Cianfanelli; (CFC), 2 ♂♂ 2 ♀♀ brach (CJD). Ogliastra prov.: , dintorni SL = S. Lanza; SR = S. Rocchi. Monte Tonneri, Sorgente Nuletta, 892 m, 5.IX.2006, GN, wn, 1 Depositories. AMC = ex M. Armeni collection c/o CNBFVR; ♂ brach (CNBFVR); , dintorni, 478 m, 15.V.2008, GN CFC = F. Cianferoni collection (Florence, Italy); CFMB = F.M. PA MB MTr, wn, 1 ♂ brach (CNBFVR). -Tempio prov.: Buzzetti collection (Arzignano, Vicenza, Italy); CFT = F. Terzani , Riu Lulino, tra Vaccileddi e Santa Giusta, collection, c/o MZUF; CJD = J. Daamgard collection (Copen- 29.VI.2008, FT, wn, 2 ♀♀ (CFT). prov.: /Mores, hagen, Denmark); CNBFVR = Centro Nazionale per lo Studio Riu Butule, tra Ozieri e Mores, 245 m, 27.VI.2008, FT, wn, 1 ♀ e la Conservazione della Biodiversità Forestale "Bosco Fontana" brach (CFT). di Verona (Marmirolo, Mantua, Italy); DBE = Dipartimento di Biologia Evoluzionistica "Leo Pardi", Università degli Studi Chorotype. Turano-Europeo-Mediterranean. di Firenze (Florence, Italy); MZUF = Museo di Storia Naturale Italian distribution. All regions, except Aosta Valley dell'Università degli Studi di Firenze, Sezione di Zoologia "La (cf. Cianferoni 2009). Specola" (Florence, Italy). Notes. Dimorphic species: usually brachypterous, Other abbreviations and recurrent terms used in faunistic less frequently macropterous. list. apt = apterous; brach = brachypterous; c. = casa (house); ca = about; Cantoniera = roadman's house; confluenza...col = conflu- ence...with; cn = car net; Codula/e = stream/s; dc = direct collec- VELIIDAE Amyot & Serville, 1843 tion; dintorni = environs of; dopo = after; dune = dunes; Fiume = River; foce = mouth; fosso = ditch; grotte = caves; in lecceta = in 2. Velia (Velia) rivulorum (Fabricius, 1775) Quercus ilex forest; Lago = Lake; macr = macropterous; Monte = Mount; M.ti = Mounts; ny = nymph/s; nyV = fifth nymph instar; Material examined. Carbonia-Iglesias prov.: Domusno- ovile = sheep-fold; PNAM = Parco Nazionale dell'Arcipelago del- vas, dintorni , 16.V.1992, CC AN, wn, 1 ♂ 1 ♀ ; pozza/e residue = residual pool/s; pozza stagnante macr (MZUF); Domusnovas, dintorni Domusnovas, dopo = stagnant pool; P.ta = Punta = Peak; Ponte = bridge; Rio or Riu Grotta di San Giovanni, 16.V.1992, FT, wn, 1 ♀ macr (CFT); = stream, small river; riva/e = shore/s; sdb = same data but; sn = Domusnovas, dintorni sa Duchessa (strada per Perda Niedda), sweep net; S.S. = State Road; Sorgente = Spring; stagno = pond; torrente in lecceta, 350 m, 8.VI.2004, GN, dc, 1 ♂ 1 ♀ macr stagni salmastri = brackish ponds; sotto = under; strada = road; (CNBFVR); Domusnovas, Valle Oridda, 592 m, 12.VI.2004, strada per = road to; torrente = stream/torrent; tra = between; GN, dc, 1 ♀ macr (CNBFVR); Domusnovas, Valle Oridda, 643 vasca artificiale raccolta acqua = water collected in bath; versante m, 7.VI.2004, GN, sn, 1 ♀ macr (CNBFVR); Iglesias, M.ti Mar- = slope; wd = without date of collection (XIXth century); wt = ganai, Tintillonis, 480 m, 7.VI.2004, GN, dc in flight and\or window flight trap; wn = water net. landed on a green car, 4 ♂♂ 2 ♀♀ macr (CNBFVR); Iglesias, P.ta Serra Pirastu, sorgente, 656 m, 7.VI.2004, GN, dc, 1 ♂ macr (CNBFVR); Iglesias, Cantoniera Marganai, 491 m, 9.VI.2004, results GN, wt, 1 ♂ macr (CNBFVR). Medio Campidano prov.: Gon- nosfanàdiga, dintorni Ovile Linas, 710 m, vasca artificiale raccolta acqua, 22.V.2006, PCo MB DB DW, wn, 1 ♂ macr (CNBFVR); faunistic LIST , Canale Monincu, 450 m, 21.V.2006, DW MB DB PCo, wn, 4 ♀♀ macr (CNBFVR); Villacidro, dintorni P.ta pis- cina Argiolas, torrente, 282 m, 13.XI–9.XI.2006, MB GN DW, GERROMORPHA wt, 1 ♂ macr (CNBFVR); Villacidro, dintorni Torrente Leni, 300 m, 9.XI.2006, GN, dc, 1 ♀ macr (CNBFVR); Villacidro, HYDROMETRIDAE Billberg, 1820 Rio Cannisoni, 375 m, pozze residue, 21.V.2006, PCo MB DB DW, wn, 3 ♂♂ macr (CNBFVR). prov.: , 1. stagnorum (Linnaeus, 1758) Torrente Cedrino, Funtana Bona, 950 m, 10.IX.1981, EMa, 2 ♀♀ macr (MZUF); sdb PM, wn, 2 ♀♀ macr (MZUF); Sini­ Material examined. Carbonia-Iglesias prov.: Domusnovas, scola, P.ta Cupetti, 23.IV.1979, BL et al., 3 ♂♂ 1 ♀ macr 1 nyV Lago Siuru, 322 m, 23.V.2006, PCo MB DB DW, wn, 1 nyV (MZUF); , tra Siniscola e la Caletta, 22.IV.1979, BL et (CNBFVR). Nuoro prov.: /, confluenza Riu Su Fr- al., 1 ♀ macr (MZUF). Ogliastra prov.: Talana, dintorni, 478 m, uscu col Fiume Flumendosa, 520 m, 10.VI.2007, RC BC, wn, 15.V.2008, GN PA MB MTr, wn, 1 ♂ macr (CNBFVR). Olbia- 1 ♂ brach (CFC); Siniscola, P.ta Cupetti, 23.IV.1979, BL et al., Tempio prov.: PNAM, La Maddalena, Isola Caprera, Arbuticci, 2 ♀♀ brach (MZUF); Siniscola, tra Siniscola e la Casa Cantoni- 13.IV.1984, GCe, 2 ♂♂ 2 ♀♀ brach (MZUF). Sassari prov.: era S. Anna, 22.VII.1978, RB et al., 1 ♀ brach (MZUF); , Ozieri, VII.1869, AT, 1 ♂ macr (MZUF).

257 Fabio Cianferoni

Chorotype. W-Mediterranean. Material examined. Sassari prov.: , Riu Mannu, 150 m, Italian distribution. Species more common in west- 25.VI.2008, FT, wn, 1 ♂ apt (CFC). ern regions of peninsular Italy, which also inhabits several Tyrrhenian islands. It is recorded from the fol- Chorotype. W-Mediterranean. lowing regions: Piedmont, Liguria, Emilia-Romagna, Italian distribution. Calabria, Sicily and Sardinia Tuscany, Umbria, Marches, Latium, Abruzzi, Campa- (Bacchi & Rizzotti Vlach 2005). nia, Apulia, Basilicata, Calabria, Sicily, Sardinia (Man- Notes. Species mainly apterous, rarely macropter- cini 1956; Bacchi & Rizzotti Vlach 2005). Literature ous. Hybridization with A. najas (De Geer, 1773) is records before the fundamental revisions of Tamanini possible in laboratory conditions but has never been (1947, 1949) are not considered (cf. Servadei 1967). observed in natural populations (Zimmermann & Notes. Dimorphic species: macropterous specimens Scholl 1993). are very common, brachypterous morphs are more rare (fig. 1). 5. najas (De Geer, 1773)

Material examined. prov.: Cagliari, 1878, RSe, 1 ♂ apt (MZUF). Carbonia-Iglesias prov.: Villamassargia, versante E Conca de Quaddu, ca 8 km SE Villamassargia, sorgente, 200 m, 7.VIII.1984, BL, 1 ♀ apt (MZUF); sdb PLa, 1 ♂ 2 ♀♀ apt (MZUF); sdb SL, 2 ♀♀ apt 1 nyV ♂ apt (MZUF). Medio Campidano prov.: Gonnosfanàdiga, Monte Linas, din- torni Ovile Linas, 710 m, 12.IX.2006, GN DB DW, wn, 1 ♂ macr (CNBFVR); Villacidro, C. Sarais, 251 m, 9.IX.2006, GN, wn, 1 ♂ apt (CNBFVR); Villacidro, Rio Cannisoni, 390 m, 11.IX.2006, LF GN, wn, 3 ♂♂ 1 ♀ apt (CNBFVR); Vil- lacidro, dintorni Torrente Leni, 300 m, 9.XI.2006, GN, wn, 1 ♀ apt (CNBFVR). Nuoro prov.: Seulo/Arzana, confluenza Riu Su Fruscu col Fiume Flumendosa, 520 m, 10.VI.2007, RC BC, Fig. 1. A brachypterous female of Velia rivulorum from Villanova wn, 2 ♂♂ 2 ♀♀ apt (CFC); , riva Fiume Flumendo- Monteleone (Bosco di Litu e' pitzinnu, 300 m, 2.X.2006) (photo sa, 402 m, 17.V.2008, GN PA MB MTr, wn, 4 3 apt by P. Niolu). ♂♂ ♀♀ (CNBFVR); Orgosolo, Torrente Cedrino, Funtana Bona, 950 m, 10.IX.1981, PM, 1 ♂ 2 ♀♀ macr (MZUF). Ogliastra prov.: 3. Velia (Plesiovelia) sarda Tamanini, 1947 Talana, dintorni, 478 m, 15.V.2008, GN PA MB MTr, wn, 4 ♂♂ 5 ♀♀ apt (CNBFVR). Olbia-Tempio prov.: , Material examined. Carbonia-Iglesias prov.: Monte Lattias, Rio Rio Petrosu-Sa Conca, 15-19.IV.2010, GMa, wn, 2 ♂♂ 2 ♀♀ Trunconi Mannu, 350 m, 11.VI.2006, RC, dc, 1 ♂ macr (CFC). apt (CFC). Nuoro prov.: Orgosolo, Torrente Cedrino, Funtana Bona, 950 m, 10.IX.1981, EMa, 1 ♀ apt (MZUF); Tonara, Riu Tolovisco, Chorotype. European (with extension to Maghreb). 760 m, 20.III.2008, RC BC, wn, 1 ♂ apt (CJD); Torpè, Rio Italian distribution. Very common throughout It- Posada, 100 m, 12.VIII.1990, BL, 2 ♀♀ apt (MZUF). Ogliastra aly, but absent at high altitudes on the Alps. I know prov.: Seui, dintorni Monte Tonneri, Sa ucca 'e su Oe, 912 m, it from all regions, Aosta Valley excluded (Angelini 5.IX.2006, GN, wn, 2 ♂♂ 9 ♀♀ apt, 1 ♀ macr (CNBFVR). 1973; Bacchi & Rizzotti Vlach 2005; Cianferoni un- published data). Chorotype. Sardo-Corsican endemic. Notes. Dimorphic species usually with apterous Italian distribution. Sardinia (Bacchi & Rizzotti specimens, macropterous forms are less common. A. Vlach 2005). najas populations from Sardinia are very old and rel- Notes. It is the only species of this subgenus living in ictual and may even qualify as distinct species as sug- Sardinia. Dimorphic, there are apterous (frequent) or gested by Zimmermann & Scholl (1993) and Dam- macropterous (less common) specimens. gaard (2005, 2008).

6. (Gerris) costae (Herrich-Schäffer, 1850) GERRIDAE Leach, 1815 Material examined. Cagliari prov.: Cagliari, 1878, RSE, 1 ♀ 4. Aquarius cinereus (Puton, 1869) macr (MZUF).

258 Notes on Gerromorpha, Nepomorpha and Leptopodomorpha from Sardinia (Hemiptera, Heteroptera)

Chorotype. Turano-European (with extension to NEPOMORPHA British Isles). Italian distribution. All regions (Fiordigigli & Os- NEPIDAE Latreille, 1802 ella 1994; Bacchi & Rizzotti Vlach 2005; Cianferoni unpublished data). 8. sardiniensis Hungerford, 1928 Notes. At present, two subspecies are recorded in Italy: G. costae costae (Herrich-Schäffer, 1850) and G. Material examined. Carbonia-Iglesias prov.: Domusnovas, costae fieberi Stichel, 1938 (Bacchi & Rizzotti Vlach Sorgente di San Giovanni, 230 m, 30.X.1995, SCi ET GMs, 1 ♀ 2005). Their interpretation (characters for separation (MZUF). Medio Campidano prov.: Villacidro, Rio Cannisoni, are very ambiguous) and distribution are not under- 390 m, 11.IX.2006, LF GN, wn, 1 ♂ 2 ♀♀ (CNBFVR); Vil- stood yet (cf. Wagner & Zimmermann 1955; Tama- lacidro, Rio Cannisoni, 390 m, 19.V.2008, GN PA MB MTr, nini 1981; Klingenberg 1992; Largiadèr et al. 1994). dc, 1 ♀ (CNBFVR). Nuoro prov.: Orgosolo, Torrente Cedrino, The subspecies recorded for Sardinia is the nomi- Funtana Bona, 950 m, 10.IX.1981, EMa, 1 ♂ (MZUF). Oglia­ nal one (cf. Grandi 1957; Servadei 1967; Tamanini stra prov.: Seui, dintorni Monte Tonneri, Sa ucca 'e su Oe, 912 1979; Bacchi & Rizzotti Vlach 2005). Studies on m, 5.IX.2006, GN, wn, 1 nyV (CNBFVR). mtDNA (Damgaard 2006) found small genetic dis- tance within G. costae, but did not definitively solve Chorotype. Sardo-Corsican endemic. the question. Therefore, I decided not to consider the Italian distribution. Sardinia (Bacchi & Rizzotti subspecies herein. In Italy, G. costae is more common Vlach 2005). on mountains (recorded up to about 2,700 m a.s.l.) Notes. The separation of this species from continen- (cf. Bacchi & Rizzotti Vlach 2005). tal N. cinerea Linnaeus, 1758 on the basis of morpho- logical characters (Tamanini 1973; Mazza 1978; Pol- 7. Gerris (Gerris) thoracicus Schummel, 1832 hemus et al. 1994) is very questionable. Nevertheless, they are two valid species since the studies of Mazza Material examined. Carbonia-Igle­sias prov.: Domusnovas, (1971) showed that they are reproductively isolated. Lago Siuru, 322 m, 23.V.2006, PCo MB DB DW, wn, 2 ♂♂ 1 ♀ macr (CNBFVR); Domusnovas, Valle Oridda, 643 m, 9. Ranatra (Ranatra) linearis (Linnaeus, 1758) 7.VI.2004, GN, dc, 1 ♂ macr (CNBFVR); Sant'Antioco, Ca- lasetta, VII.2003, MA, 1 ♂ macr (AMC). Medio Campidano Material examined. Cagliari prov.: , wd, L?, 1 ♀ prov.: , SE Giara di Gesturi, 500 m, 20.IV.1992, FT, wn, (MZUF). Medio Campidano prov.: Gonnosfanàdiga, dintorni 2 ♀♀ macr (CFC; CFT); Gonnosfanàdiga, Monte Linas, din- Ovile Linas, 710 m, vasca artificiale raccolta acqua, 22.V.2006, torni Ovile Linas, 710 m, 12.IX.2006, GN DB DW, wn, 1 ♀ PCo MB DB DW, wn, 1 ♂ (CNBFVR). Olbia-Tempio prov.: macr (CNBFVR). Nuoro prov.: Seulo/Arzana, confluenza Riu PNAM, La Maddalena, Isola Caprera, Fosso Stefano, 25.X.1983, Su Fruscu col Fiume Flumendosa, 520 m, 10.VI.2007, RC BC, GCe, 2 ♂♂ (MZUF). wn, 1 ♀ macr (CFC); Codule Iluno, 700-1000 m, 1.V.1979, BL et al., 1 ♀ macr (MZUF); , dintorni Ponte Gùspene, 940 Chorotype. Palaearctic. m, 16.V.2008, GN PA MB MTr, wn, 1 ♂ macr (CNBFVR); Italian distribution. Species recorded in almost all , Cantoniera Giustizieri, stagno, rive, 740 m, 12.IV.1982, regions (except Aosta Valley and Abruzzi). It is present BL SL, 1 ♀ macr (MZUF). Olbia-Tempio prov.: Loiri Porto San also in Sardinia and Sicily (Servadei 1967; Fiordigigli Paolo, Riu Lulino, tra Vaccileddi e Santa Giusta, 29.VI.2008, FT, & Osella 1994; Bacchi & Rizzotti Vlach 2005). 3 ♂♂ 3 ♀♀ macr (CFT). Sassari prov.: Ozieri, wd, L?, 1 ♀ macr (MZUF); Ozieri/Mores, Riu Butule, tra Ozieri e Mores, 245 m, 27.VI.2008, FT, wn, 4 ♂♂ 4 ♀♀ macr (CFT). CORIXIDAE Leach, 1815

Chorotype. Palaearctic. 10. affinis Leach, 1817 Italian distribution. Species common in southern and central Italy but absent in the Alps; not recorded Material examined. Oristano prov.: Oristano, 1914, AK, 1 ♂ from Aosta Valley and Trentino-Alto Adige (Piccol- 1 ♀ macr (MZUF). Sassari prov.: , VI.1869, AT, 1 ♂ 2 ino 2002; Bacchi & Rizzotti Vlach 2005). ♀♀ macr (MZUF). Notes. Dimorphic species, common in the macrop- terous morph; brachypterous specimens have been Chorotype. Centralasiatic-Europeo-Mediterranean collected only in some biotopes of the Po Valley (with extensions to northern to Denmark (Tamanini 1979). and the British Isles, and to India).

259 Fabio Cianferoni

Italian distribution. Common in the southern re- Material examined. Oristano prov.: Oristano, 1914, AK, 1 ♂ 1 gions, while it is sporadic and rare in the northern ♀ macr (MZUF). Sassari prov.: , Tonnara Saline, stagni regions. It is recorded from Venetia, Friuli-Venezia salmastri, 26.VI.2008, SR, wn, 1 ♂ (CFC). Giulia, Emilia-Romagna, Tuscany, Umbria, Latium, Campania, Apulia, Basilicata, Calabria, Sicily and Sar- Chorotype. Europeo-Mediterranean (extended to dinia (Servadei 1967; Bacchi & Rizzotti Vlach 2005). the British Isles). Notes. The above material was studied by Jansson Italian distribution. It is recorded from Venetia, (1986) and used for the distributional map of the Emilia-Romagna, Tuscany, Latium, Apulia, Sic- species, but without the publication of label data. ily and Sardinia (Bacchi & Rizzotti Vlach 2005; Dionisi 2007). 11. Corixa punctata (Illiger, 1807) Notes. Usually occurs in coastal areas (halophilous species). Material examined. Oristano prov.: Oristano, 1914, AK, 1 ♂ 1 ♀ macr (MZUF). 15. Sigara (Vermicorixa) lateralis (Leach, 1817)

Chorotype. Centralasiatic-Europeo-Mediterranean Material examined. Sassari prov.: Tula, Cantoniera Bulvaris, (extended to the British Isles and in northern Europe Rio Mannu, 160 m, 28.VI.2008, SR, wn, 1 ♂ macr (CFC). to Sweden and Norway; reaches also the Indian re- gion). Chorotype. Palaearctic (extended to the Afrotropical Italian distribution. All regions (except Aosta Val- and Indian regions). ley) (Servadei 1967; Bacchi & Rizzotti Vlach 2005). Italian distribution. All regions (Tamanini 1981; Notes. The above-listed specimens were studied by Fiordigigli & Osella 1994; Bacchi & Rizzotti Vlach Jansson (1986) and used for the distributional map 2005). of the species, but the label data were unpublished.

12. Parasigara perdubia (Rey, 1894) MICRONECTIDAE Jaczewski, 1924

Material examined. Medio Campidano prov.: Villacidro, Tor- 16. (Dichaetonecta) scholtzi (Fieber, 1860) rente Leni, 300 m, 9.XI.2006, GN, wn, 1 ♂ 1 ♀ macr (CNBFVR). Olbia-Tempio prov.: Loiri Porto San Paolo, Riu Lulino, Vacciled- Material examined. Nuoro prov.: Gadoni, riva Fiume Flumen- di, 50 m, 29.VI.2008, SR, wn, 1 ♂ 1 ♀ macr (CFC). dosa, 402 m, 17.V.2008, GN, sn, 1 ♀ brach (CNBFVR).

Chorotype.W-Mediterranean (Maghreb excluded). Chorotype. Europeo-Mediterranean. Italian distribution. It is present along coastal areas Italian distribution. All regions except Marches and of Liguria (Bacchi & Rizzotti Vlach 2005), Tuscany Apulia (Tamanini 1981). (Cianferoni, unpublished data) and Latium (Dionisi Notes. It is sympatric in Sardinia with the Sardo- 2007) and on islands: Elba Island (Cianferoni, un- Corso-Balearic endemic Micronecta (M.) leucocepha­ published data), Capraia Island and Sardinia (Bacchi la (Spinola, 1837). It is a dimorphic species with & Rizzotti Vlach 2005). brachypterous (common) and macropterous (less fre- quent) morphs. 13. Sigara (Halicorixa) selecta (Fieber, 1848)

Material examined. Olbia-Tempio prov.: Olbia, Lido del Sole, NAUCORIDAE Leach, 1815 stagni salmastri, 29.VI.2008, SR, wn, 1 ♂ macr (CFC). 17. Naucoris maculatus conspersus Stål, 1876 Chorotype. Europeo-Mediterranean (extended to the British Isles). Material examined. Carbonia-Iglesias prov.: , foce del Italian distribution. Southern Tuscany, Sicily Rio Mannu, dune, 14.VI.2004, GN DB PCe, wn, 3 ♂♂ brach (Lampedusa and Pantelleria Islands included) and (CNBFVR). Medio Campidano prov.: Gesturi, Giara di Gestu- Sardinia (Bacchi & Rizzotti Vlach 2005). ri, 28.IV.1984, SCa, 7 ♂♂ 3 ♀♀ brach (MZUF). Nuoro prov.: Notes. Halophilous species. Seulo/Arzana, confluenza Riu Su Fruscu col Fiume Flumendosa, 520 m, 10.VI.2007, RC BC, wn, 1 ♀ brach (CFC); Siniscola, 14. Sigara (Halicorixa) stagnalis stagnalis (Leach, 1817) 2.V.1979, BL, 1 ♂ 1 ♀ brach (MZUF). Olbia-Tempio prov.:

260 Notes on Gerromorpha, Nepomorpha and Leptopodomorpha from Sardinia (Hemiptera, Heteroptera)

PNAM, La Maddalena, Isola Caprera, Fosso Stefano, 25.X.1983, lanovatulo, dintorni is Cangialis, pozza residua sotto GCe, 2 ♂♂ brach (MZUF); Monti, Rio de s'Eleme, S.S. 389, ponte, 373 m, 6.IX.2006, GN, wn, 1 ♂ (CNBFVR). Oglias- 3.IX.2007, AM, dc, 2 ♂♂ brach 2 nyV (CNBFVR). tra prov.: Seui, dintorni Monte Tonneri, Sa ucca 'e su Oe, 912 m, 5.IX.2006, GN, wn, 1 ♂ 1 ♀ (CNBFVR). Olbia-Tempio Chorotype. W-Mediterranean. prov.: Loiri Porto San Paolo, Riu Lulino, tra Vaccileddi e San- Italian distribution. Basilicata, Calabria, Sicily and ta Giusta, 29.VI.2008, FT, wn, 2 ♂♂ (CFT). Sassari prov.: Sardinia (Bacchi & Rizzotti Vlach 2005). , Fiume Temo, Ponte Tataresu, 300 m, Notes. Brachypterous and macropterous morphs 25.VI.2008, SR, wn, 1 ♂ 1 ♀ (CFC). exist. Chorotype. W-Palaearctic. Italian distribution. All of Italy, major islands in- NOTONECTIDAE Latreille, 1802 cluded (cf. Cianferoni 2009).

18. Anisops sardeus sardeus Herrich-Schäffer, 1849 20. (Notonecta) meridionalis Poisson, 1926

Material examined. Carbonia-Iglesias prov.: Sant'Antioco, Ca- Material examined. Medio Campidano prov.: Villacidro, C. lasetta, VII.2003, MA, 1 ♂ (AMC). Sarais, 251 m, 9.IX.2006, GN, wn, 1 ♂ (CNBFVR); Villaci­ dro, dintorni Torrente Leni, 300 m, 9.XI.2006, GN, wn, 2 ♀♀ Chorotype. Afrotropico-Indo-Mediterranean (ex- (CNBFVR). Nuoro prov.: Orgosolo, Torrente Cedrino, Fun- tended northward to Hungary and eastward to My- tana Bona, 950 m, 10.IX.1981, PM, 1 ♂ (MZUF). Ogliastra anmar). prov.: Seui, dintorni Monte Tonneri, Sa ucca 'e su Oe, 912 m, Italian distribution. It is common in the south- 5.IX.2006, GN, wn, 2 ♀♀ (CNBFVR); Seui, dintorni Monte ern mainland regions (Campania, Apulia, Basilicata, Tonneri, Sorgente Nuletta, 892 m, 5.IX.2006, GN, wn, 1 ♂ 1 Calabria) and major islands (Sicily and Sardinia) ♀ (CNBFVR). (Bacchi & Rizzotti Vlach 2005), while it is occa- sional in the central (Latium and Tuscany) (Bacchi Chorotype. Mediterranean. & Rizzotti Vlach 2005; Dionisi 2007; Cianferoni, Italian distribution. Almost all regions, Sicily and unpublished data) and northern regions (Emilia- Sardinia included (cf. Cianferoni 2009). Romagna) (Olivi 1893). Notes. First record for Sant'Antioco Island. In Eu- 21. Notonecta (Notonecta) viridis Delcourt, 1909 rope this species was known only from the Mediter- ranean region and the Balkan Peninsula, but recently Material examined. Nuoro prov.: Villanovatulo, dintorni Nu­ new records for Hungary (Soós et al. 2010) have ex- raghe is Cangialis, pozza residua sotto ponte, 373 m, 6.IX.2006, panded its distribution northwards. GN, wn, 2 ♂♂ (CNBFVR). Ogliastra prov.: Seui, dintorni Monte Tonneri, Sorgente Nuletta, 892 m, 5.IX.2006, GN, wn, 19. Notonecta (Notonecta) maculata Fabricius, 1794 1 ♀ (CNBFVR).

Material examined. Carbonia-Iglesias prov.: Domusnovas, Chorotype. Turano-European (with extension to the Valle Oridda, pozza stagnante, 595 m, 4.IX.2003, GN, wn, 2 Indian region). ♀♀ macr (CNBFVR). Medio Campidano prov.: Gonnosfa­ Italian distribution. All regions, Sicily and Sardinia nàdiga, Monte Linas, dintorni Ovile Linas, vasca artificiale included (cf. Cianferoni 2009). raccolta acqua, 710 m, 12.IX.2006, DB GN, dc, 7 ♂♂ macr (CNBFVR); Villacidro, C. Sarais, 251 m, 9.IX.2006, GN, wn, 5 ♀♀ (CNBFVR); Villacidro, Rio Cannisoni, 390 m, 11.IX.2006, LEPTOPODOMORPHA GN LF, wn, 1 ♂ 1 ♀ (CNBFVR); Villacidro, Torrente Leni, 300 m, 9.XI.2006, GN, wn, 10 ♂♂ 11 ♀♀ (CNBFVR). Nuoro SALDIDAE Amyot & Serville, 1843 prov.: Fonni, dintorni Ponte Gùspene, 940 m, 16.V.2008, GN PA MB MTr, wn, 1 ♂ 2 ♀♀ (CNBFVR); Orgosolo, Tor- 22. palustris (Douglas, 1874) rente Cedrino, Funtana Bona, 950 m, 10.IX.1981, EMa, 1 ♀ (MZUF); Tonara, Riu Tolovisco, 760 m, 20.III.2008, RC BC, Material examined. Olbia-Tempio prov.: PNAM, La Mad­ wn, 1 ♂ (CJD); Torpé, Rio Posada, 100 m, 12.VIII.1990, BL, dalena, Isola Giardinelli, 8.XI.1983, GCe, 1 ♀ macr (MZUF). 4 ♂♂ 12 ♀♀ (MZUF); Urzulei, Cantoniera Giustizieri, sta­ gno, rive, 740 m, 12.IV.1982, BL SL, 1 ♀ macr (MZUF); Vil- Chorotype. Palaearctic.

261 Fabio Cianferoni

Italian distribution. Venetia, Emilia-Romagna, regions (Oriental and Afrotropical Regions + Cos- Tuscany, Latium, Molise, Campania, Apulia, Sicily mopolitan and Subcosmopolitan elements): Ger- and Sardinia (Carapezza & Faraci 2005, 2007). romorpha 7.7%, Nepomorpha 3.8%, Leptopodo- Notes. It is usually confined to coastal areas. This is morpha 6.7%. the first record for Giardinelli Island (Sardinia). In the three infraorders, species with a wide distribu- tion (groups "d" + "e") clearly prevail (evident espe- cially in the Leptopodomorpha with 80% of species); conclusions European taxa are instead absent (Nepomorpha and Leptopodomorpha) or low in number (Gerromor- An overview of the whole Gerromorpha, Nepomor- pha), and numbers of species with a Mediterranean pha and Leptopodomorpha fauna present in Sar- gravitation (groups "a" + "b") are high in all three dinia reveals that the most interesting taxa are the infraorders: Nepomorpha (30.8%), Gerromorpha Sardo-Corsican endemics: Velia (Plesiovelia) sarda (23.1%), Leptopodomorpha (20%). (Veliidae), Nepa sardiniensis (Nepidae), Sigara (Retro­ In the present study, new distributional records for 22 corixa) limitata remyi and Sigara (Sigara) servadeii species (of the 55 recorded for the island) are given. All (Corixidae) and Saldula sardoa (Saldidae); another records represent a precious contribution to the knowl- very interesting is Micronecta (M.) leucocephala edge of the distribution of these groups on the island, (Micronectidae), a Sardo-Corso-Balearic endemic. especially in SW-Sardinia. In particular, the 14 species The Saldidae sphacelata, recorded for the collected at Marganai and Montimannu represent the first time in Sardinia by Carapezza (1980), is an al- first records for this area (cf. Bacchi & Rizzotti Vlach ien species introduced to the Palaearctic Region from 2005), previously undersampled for these groups. the New World (Rabitsch 2008) and is probably es- Also interesting are the findings of two Sardo-Corsi- tablished on the island as deducible from Faraci & can endemics: Velia (Plesiovelia) sarda and Nepa sar­ Rizzotti Vlach (1992). Further researches are needed diniensis. to understand the actual status of this taxon. The absence of some common species and above all The record of the W-Mediterranean Notonecta (N.) of Leptopodomorpha is probably due to biased sam- pallidula (Poisson 1928, 1933) in Sardinia needs to pling. In particular, the absence of Saldidae and Lep- be reconfirmed. topodidae in the studied material can also be attrib- From the study of chorotypes, the presence of Medi- uted to the type of sampling, as these families require terranean species (sensu Vigna Taglianti et al. 1993) appropriate sampling methods. is relevant (14 species: 26% of total, excluding the Further focused research on these groups in Sardinia alien species): 12 W-Mediterranean taxa represent- is necessary to reconfirm the presence of some species ing the three infraorders (including 5 Sardo-Corsican only known from a single collection or old data, and and 1 Sardo-Corso-Balearic endemics) and two Med- to improve the knowledge on the distribution of spe- iterranean (fig. 2). cies on the island (especially for the endemics). After analysing the three infraorders separately and after grouping chorotypes according to Vigna Ta- Acknowledgements glianti et al. (1999), the following percentages were This paper was prepared in the context of the ICP obtained, excluding the alien species (fig. 3): Forests monitoring programme. • endemics in the Mediterranean area (Sardo-Corsi- I wish to thank Gianluca Nardi, who sent me the can + Sardo-Corso-Balearic): Gerromorpha 7.7%, specimens of the CNBFVR collection for study; Luca Nepomorpha 15.4%, Leptopodomorpha 6.7%; Bartolozzi, who authorized me to study the MZUF • species widespread in the Mediterranean basin collection; Fabio Terzani (MZUF) and Filippo Maria (sensu Vigna Taglianti et al. 1993): Gerromorpha Buzzetti (Arzignano, Italy), who kindly allowed me to 15.4%, Nepomorpha 15.4%, Leptopodomorpha study some specimens in their collections; Riccardo 13.3%; and Brando Cipriani (Florence, Italy), Saverio Roc- • species widespread in Europe (sensu Vigna Ta- chi (MZUF) and Giuseppe Mazza (DBE), who pro- glianti et al. 1993): Gerromorpha 15.4%, Nepo- vided me with further Sardinian specimens to study; morpha 0%, Leptopodomorpha 0%; Alessandro Mascagni (MZUF), for precious advice; • species widespread in the Holarctic Region (sensu Mala Ram (London, UK) and Daniel Whitmore Vigna Taglianti et al. 1993): Gerromorpha 54.8%, (CNBFVR) for the revision of the English text; Pietro Nepomorpha 65.4%, Leptopodomorpha 73.3%; Niolu (Sassari, Italy) for the photo; Fausto Barbagli • species widespread also in other biogeographical (MZUF) for some critical bibliographic researches.

262 Notes on Gerromorpha, Nepomorpha and Leptopodomorpha from Sardinia (Hemiptera, Heteroptera)

Checklist of Gerromorpha, Nepomorpha and Leptopodomorpha of Sardinia

The present checklist is based on the papers listed in the Introduction and on unpublished data. Records for Notonecta (N.) obliqua Gallén, 1787 (cf. Servadei 1952, 1967), species not present in Italy (Polhemus 1995c), are referred to N. (N.) meridionalis Poisson, 1926 with which it has been frequently misidentified; records for Parasigara transversa (Fieber, 1848) (cf. Servadei 1967, as Sigara (P.) transversa), species not present in Italy (Jansson, 1995), are referred to P. perdubia (Rey, 1894), and records for Sigara (S.) dorsalis (Leach, 1818) (cf. Servadei 1967) are referred to S. (S.) servadeii Tamanini, 1965, the only species of this subgenus inhabiting Sardinia; data for Naucoris maculatus Fabricius, 1798 (cf. Servadei 1952; Grandi 1957; Serra & Tagliasacchi Masala 1980; Pisano et al. 2003) and N. conspersus Stål, 1876 (cf. Servadei 1952, 1967) are attributed to N. maculatus conspersus Stål, 1876, the subspecies living in Sardinia (Bacchi & Rizzotti Vlach 2005). Data regarding Velia (Plesiovelia) currens (Fabricius, 1794), Gerris (G.) lacustris (Linnaeus, 1758), Nepa rubra Linnaeus, 1758 and N. dollfusi Esaki, 1828, both synonyms of N. cinerea Linnaeus, 1758, Sigara (Halicorixa) mayri (Fieber, 1860), (Linna- eus, 1758) (cf. Servadei 1952, 1967; Pisano et al. 2003) and (M.) reticulata (Burmeister, 1835) (cf. Fonnesu et al. 2005a) are considered doubtful (probable misidentifications with similar species) and needful of further investigations, so these species are not included in the checklist. The record of Velia (Plesiovelia) muelleri Tamanini, 1947 for Sardinia (, 6.VI.2001) (Bacchi & Rizzotti Vlach 2005) was due to a mistake: the specimen (CFMB), examined also by me, belongs to V. (P.) sarda Tamanini, 1947 (det. V. sarda by Rizzotti Vlach), and V. (P.) muelleri is therefore excluded from the fauna of the island. Quotations (cf. Servadei 1967; Bacchi & Rizzotti Vlach 2005) of pusillus (Fallén, 1807), Sigara (Retrocorixa) limitata remyi Poisson, 1953, Ilyocoris c. cimicoides (Linnaeus, 1758), Notonecta (N.) pallidula Poisson, 1926, Leptopus marmoratus (Goeze, 1778) and Saldula nitidula (Puton, 1880) need confirmation because they are based on single and/or too old records, but these species are nonetheless included in the checklist. This checklist is obviously provisional, but I consider it useful for further studies on this region. Chorotype abbreviations. AIM = Afrotropico-Indo-Mediterranean; ASE = Asiatic-European; CEM = Centralasiatic-European-Medi- terranean; EUM = European-Mediterranean; EUR = European; MED = Mediterranean; OLA = Holarctic; PAL = Palaearctic; SACO = Sardo-Corsican endemic; SCBA = Sardo-Corso-Balearic; SIE = Sibero-European; SCO = Subcosmopolitan; TEM = Turano-European- Mediterranean; TUE = Turano-European; TUM = Turano-Mediterranean; WME = W-Mediterranean; WPA = W-Palaearctic.

gerromorpha Mesoveliidae vittigera Horváth, 1895 SCO

Hebridae pusillus (Fallén, 1807) WPA

Hydrometridae (Linnaeus, 1758) TEM

Veliidae Microvelia (Picaultia) pygmaea (Dufour, 1833) TEM Velia (Plesiovelia) sarda Tamanini, 1947 WME (SACO) Velia (Velia) rivulorum (Fabricius, 1775) WME

Gerridae Aquarius cinereus (Puton, 1869) WME (De Geer, 1773) EUR Aquarius paludum paludum (Fabricius, 1794) PAL Gerris (Gerris) argentatus Schummel, 1832 SIE Gerris (Gerris) costae (Herrich-Schäffer, 1850) TUE Gerris (Gerris) gibbifer Schummel, 1832 EUR Gerris (Gerris) thoracicus Schummel, 1832 PAL

nepomorpha Nepidae Nepa sardiniensis Hungerford, 1928 WME (SACO) Ranatra (Ranatra) linearis (Linnaeus, 1758) PAL

263 Fabio Cianferoni

Micronectidae Micronecta (Dichaetonecta) scholtzi (Fieber, 1860) EUM Micronecta (Micronecta) leucocephala (Spinola, 1837) WME (SCBA)

Corixidae Corixa affinis Leach, 1817 CEM Fieber, 1848 TEM Corixa punctata (Illiger, 1807) CEM linnaei (Fieber, 1848) PAL Hesperocorixa moesta (Fieber, 1848) EUM Parasigara perdubia (Rey, 1894) WME Sigara (Halicorixa) selecta (Fieber, 1848) EUM Sigara (Halicorixa) stagnalis stagnalis (Leach, 1817) EUM Sigara (Pseudovermicorixa) nigrolineata nigrolineata (Fieber, 1848) WPA Sigara (Retrocorixa) limitata remyi Poisson, 1953 WME (SACO) Sigara (Sigara) servadeii Tamanini, 1965 WME (SACO) Sigara (Vermicorixa) lateralis (Leach, 1817) PAL Sigara (Vermicorixa) scripta (Rambur, 1840) TUM

Naucoridae Ilyocoris cimicoides cimicoides (Linnaeus, 1758) ASE Naucoris maculatus conspersus Stål, 1876 WME

Notonectidae Anisops sardeus sardeus Herrich-Schäffer, 1849 AIM Notonecta (Notonecta) glauca glauca Linnaeus, 1758 ASE Notonecta (Notonecta) maculata Fabricius, 1794 WPA Notonecta (Notonecta) meridionalis Poisson, 1926 MED Notonecta (Notonecta) pallidula Poisson, 1926 WME Notonecta (Notonecta) viridis Delcourt, 1909 TUE

Pleidae Plea minutissima minutissima Leach, 1817 TEM

leptopodomorpha Saldidae Chartoscirta cincta (Herrich-Schäffer, 1841) SIE Chartoscirta geminata (A. Costa, 1853) MED Halosalda concolor (Puton, 1880) WME Halosalda lateralis (Fallén, 1807) ASE Macrosaldula variabilis (Herrich-Schäffer, 1835) CEM Pentacora sphacelata (Ulher, 1877) SCO* Saldula arenicola arenicola (Scholtz, 1847) PAL Saldula opacula (Zetterstedt, 1838) OLA Saldula nitidula (Puton, 1880) TUE Saldula pallipes (Fabricius, 1794) SCO Saldula palustris (Douglas, 1874) PAL Saldula pilosella (Thomson, 1871) SIE Saldula sardoa Filippi, 1957 WME (SACO)

Leptopodidae Leptopus hispanus Rambur, 1840 CAM Leptopus marmoratus (Goeze, 1778) TUM spinosus (Rossi, 1790) CAM

* Alien in the Palaearctic Region.

264 notes on Gerromorpha, nepomorpha and leptopodomorpha From sardinia (hemiptera, heteroptera)

Fig. 2. Percentages of species belonging to the three studied infraorders considered as a whole, according to chorotype.

Fig. 3. Percentages of species within each studied infraorder, according to chorotype category.

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