Gerris Fabricius, 1794

Ghahari, Hassan, Moulet, Pierre, Ostovan, Hadi & Linnavuori, Rauno E., 2013, An annotated catalog of the Iranian Dipsocoromorpha, Enicocephalomorpha, Gerromorpha, Leptopodomorpha and Nepomorpha (Hemiptera: Heteroptera), Zootaxa 3641 (4), pp. 301-342 : 307-308

Subgenus Gerris Fabricius, 1794

Gerris (Gerris) argentatus (Schummel, 1832)

Gerris argentatus Schummel , 14832: 49 (as new species); Gerris apicalis Curtis, 1835: 553 .

Distribution in Iran. Kermanshah (Sakenin et al. 2010; Samin et al. 2011), Iran (no locality cited) (Linnavuori & Hosseini 2000).

General distribution. Euro-Siberian (Andersen 1995; Fent et al. 2011).

Gerris (Gerris) caucasicus Kanyukova, 1982

Gerris caucasicus Kanyukova, 1982: 88 (as new species); Gerris kiritshenkoi Linnavuori (1994: 91, non Kanyukova, 1982).

Distribution in Iran. Ardabil, Golestan (Kanyukova 1982), Guilan (Linnavuori & Hosseini 2000), Markazi (Vafaei 2005).

General distribution. Caucasus and Iran.

Comments. Linnavuori (1994) reported G. kiritshenkoi from Iraq, but that record belongs to Gerris kabaishanus Linnavuori, 1998 (see Fent et al. 2011).

Gerris (Gerris) costae fieberi Stichel, 1938

Gerris costae var. fieberi Stichel, 1938: 464 (as new variety); Gerris costae fieberi Wagner & Zimmermann, 1955: 184 .

Distribution in Iran. Ardabil (Linnavuori & Hosseini 2000), East Azarbaijan (Ghahari et al. 2010a), Fars (Ostovan & Arefnia 2011; Linnavuori 2009), Guilan (Sakenin et al. 2011 as G. (Gerris) costae costae (Herrich- Schäffer, 1850)), Isfahan (Wagner 1961), Kermanshah (Sakenin et al. 2010; Samin et al. 2011), Khorasan (Linnavuori & Modarrres Awal 1998 as Gerris costae ; Modarres Awal 2008), Kuhgiloyeh & Boyerahmad (Linnavuori 2009), Markazi (Vafaei 2005), Sistan & Baluchestan, Tehran (Hoberlandt 1955; Kiritshenko 1966).

General distribution. Ponto-north-Mediterranean extending to Central Asia.

Comments. Linnavuori & Modarrres Awal (1998), Sakenin et al. (2010), and Samin et al. (2011) cited G. (Gerris) costae (Herrich-Schäffer, 1850) without a subspecific name, so these records more likely concern G. (Gerris) costae fieberi Stichel, 1938 , a well known subspecies in Iran. Additionally, upon the checking of specimens, the record of G. (Gerris) costae costae from Guilan by Sakenin et al. (2011) is referred to G. (Gerris) costae fieberi . Distribution of G. (Gerris) costae costae (Herrich-Schäffer, 1850) is restricted to Europe including Switzerland, France (south east), Italy, Germany, Austria, and Slovenia (Andersen 1995; Fent et al. 2011).

Gerris (Gerris) gibbifer Schummel, 1832

Gerris gibbifer Schummel, 1832: 41 (as new species); Gerris gibbifer var. flaviventris Puton, 1879: 157 ; Gerris gibbifer var. fuscicornis Rey, 1893: 121 .

Distribution in Iran. Kermanshah (Sakenin et al. 2010; Samin et al. 2011).

General distribution. Euro-Mediterranean, quoted in Israel (Andersen 1995; Fent et al. 2011).

Gerris (Gerris) lacustris (Linnaeus, 1758)

Cimex lacustris Linnaeus, 1758: 450 (as new species); Cimex najas var. inermis Retzius, 1783: 89 ; Gerris variabilis Curtis, 1835: 553 ; Hydrometra servillei Frey-Gessner, 1864: 228 ; Gerris brevirostris Bergroth, 1893: 209 .

Distribution in Iran. East Azarbaijan (Nikdel et al. 2011, Sakenin et al. 2011 as G. lacustris latiabdominalis (Miyamoto 1958) , Guilan (Kiritshenko 1930; Cox & Cox 1995), Kordestan (Sakenin et al. 2010; Samin et al. 2011), Markazi (Vafaei 2005), Yazd ( China 1938), northern Iran (no locality cited) (Sakenin et al. 2009), Iran (no locality cited) (Linnavuori & Hosseini 2000; Nikdel et al. 2011).

General distribution. Palearctic (Andersen 1995; Fent et al. 2011).

Comments. Gerris lacustris latiabdominalis (Miyamoto, 1958) has erroneously been cited from Iran; this species is a Far Eastern taxon known from China, Japan, Korea, Russian Far East, and Taiwan. Puschnig (1925) described several color variations without any taxonomic value.

Gerris (Gerris) maculatus (Tamanini, 1946)

Gerris gibbifer var. maculatus Tamanini, 1946: 7 (as new variety); Gerris italicus Wagner, 1955: 114 .

Distribution in Iran. Ardabil (Ghahari et al. 2010a), East Azarbaijan (Khaghaninia et al. 2010a, b), Markazi (Vafaei 2005), West Azarbaijan (Gharaat et al. 2009), Zanjan (Askari et al. 2009), Iran (no locality cited) (Linnavuori & Hosseini 2000).

General distribution. Mediterranean basin, Caucasus, Central Asia (Andersen 1995; Fent et al. 2011).

Gerris (Gerris) thoracicus (Schummel, 1832)

Hydrometra abbreviata Fabricius, 1803: 258 (larval stage); Gerris thoracicus Schummel, 1832: 46 (as new species); Limnotrechus plebejus Horváth, 1878: 133 .

Distribution in Iran. Ardabil, Guilan (Linnavuori & Hosseini 2000), Fars (Ostovan & Arefnia 2011; Linnavuori 2009), Golestan (Heiss 2002; Sakenin et al. 2011), Hamadan (Samin et al. 2011), Khorasan (Linnavuori & Modarres Awal 1998; Modarres Awal 2008), Mazandaran (Linnavuori & Hosseini 2000; Mousavi 2005; Ghahari et al. 2009a), Semnan (Linnavuori 2009), West Azerbaijan (Gharaat et al. 2009; Sakenin et al. 2010).

General distribution. European, extending to Middle East, Middle Asia, and North Africa (Andersen 1995; Fent et al. 2011).

Comments. Hydrometra abbreviata is a 5th instar of Gerris thoracicus , but this name is a nomen oblitum and thus unavailable (J.T. Polhemus in Andersen 1995). Some varieties of no systematic value have been described: fuscinotum Reuter; 1880; rapidus Horváth, 1914; reymondi Poisson, 1950.