Coleoptera: Curculionidae): Genus Polydrusus Germar, 1817

12 On Latvian weevils of the subfamily Entiminae: Genus Polydrusus ...

On Latvian weevils of the subfamily Entiminae (Coleoptera: Curculionidae): Genus Polydrusus Germar, 1817

Maksims Balalaikins

Institute of Systematic Biology, Daugavpils University, Vienības iela 13, LV- 5401, Daugavpils, Latvia; e-mail: [email protected]

BALALAIKINS M. 2012. On Latvian weevils of the subfamily Entiminae (Coleoptera: Curculionidae): Genus Polydrusus Germar, 1817. – Latvijas Entomologs 51: 12-26.

Abstract: Faunal data on ten species of the genus Polydrusus Germar, 1817 are presented. A total of 265 specimens of this genus were reviewed. New faunal data on ten species are presented. Bibliographic information on this genus in Latvia is summarised for the first time. The annotated list including ten species and illustrated key to Latvian Polydrusus are given.

Key words: Coleoptera, Curculionidae, Polydrusus, Latvia, fauna, identification key.

Introduction Polydrusus Germar with two species and Eudipinus Thomson with single There are 194 species of the species. In adjacent territories the genus Polydrusus Germar, 1817 number of the registered species from known in the world fauna (Sleeper this genus differs a little: 13 – Belarus 1957, Korotyaev, Meleshko 1997, (Alexandrovich et al. 1996), Estonia Korotyaev et al. 2003, Meleshko, – 9 species (Silfverberg 2004), Korotyaev 2003, 2005), most of which Lithuania – 12 (Tamutis et al. 2011), are native to the Palaearctic region. Russian Karelia – 6 (Silfverberg Of them, 15 species are known from 2011). northern Europe (Silfverberg 2004). The first information on weevils In Latvian fauna the genus Polydrusus of the genus Polydrusus in Latvia was is presented by five subgenera and published at the beginning of the 19th ten species: Metallites Germar with century (Fleischer 1829), and about single species, Neoeustolus Alonso- 12 studies appeared with fragmentary Zarazaga et Lyal with two species, information on this genus beetles. Eustolus Thomson with four species, Latvian beetles of this genus have been Latvijas Entomologs 2012, 51: 12-26. 13

irregularly investigated. In 1993 A. Material and methods Barševskis monograph „The beetles of Eastern Latvia” include data about 265 specimens of weevils seven species of Polydrusus. In 1997 were reviewed in this investigation, A. Barševskis published check-list of representing ten species of the Latvian Curculionidae and faunistic genus Polydrusus. The examined data about 266 species including ten material is deposited in the collection species of genus Polydrusus. In recent of the Institute of Systematic years only separate data on occurrence Biology of Daugavpils University of some species have been published (DUBC, Daugavpils, Latvia), the (Barševskis 2001, Barševskis et al. entomological collection of the 2002, Kalniņš et al. 2007), as well Institute of Biology of the Latvian as a list of species of Polydrusus can University (LUBI, Salaspils, be found in published catalogues of Latvia), the collection of the Latvian Latvian beetles (Telnov et al. 1997, Natural History Museum (LDM, Telnov 2004). Faunal data on this Rīga, Latvia), the collection of A. genus can also be found in articles Barševskis (Daugavpils, Latvia), published by the following authors: the collection of C. Müthel (Latvian Mikutowicz (1905), Lindberg (1932), Natural History Museum, Rīga, Lackschewitz, Mikutowicz (1939), Latvia). The following identification Ozols (1982, 1985). keys were used for identification The imagos of the genus of specimens: Dieckmann (1980), Polydrusus feed in the foliage of Hoffmann (1950), Kippenberg trees and shrubs (Salix spp., Populus (1981), Morris (1997), Palm (1996), spp., Betula spp. and other), and Smreczynski (1966), Yunakov (2003). their larvae feed on roots of tree or We follow the systematics suggested shrubs species on which adults feed by Alonso-Zarazaga & Lyal (1999). (Yunakov 2003). The nomenclature and synonymy Some Polydrusus species suggested by Silfverberg (2004). considered to be parthenogenetic A distribution of species and host (Dieckmann 1980). plants is presented in the following The aim of the current work works: Dieckmann (1980), Hoffmann is to summarise data on the genus (1950), Legalov (2010), Legalov et al. Polydrusus in Latvia and prepare an (2010). Palm (1996), Yunakov (2003), original identification key to Latvian Classification of chorotypes follows species. as suggested by Vigna-Taglianti et al. (1999). The abbreviations of 14 On Latvian weevils of the subfamily Entiminae: Genus Polydrusus ...

chorotypes codes: CAE – Central Gyllenhal], Sibero-European – five Asiatic-European, EUR – European, species [P. undatus (F.), P. fulvicornis SIE – Sibero-European, WPA – (F.), P. flavipes (DeGeer), P. mollis West Palaearctic. The following (Ström), P. cervinus (L.)], Central information is given for each species: Asiatic-European – two species [P. scientific name and author, published corruscus Germar, P. pterygomalis bibliographic sources for Latvia, Boheman], European – single species faunal data (locality, collecting date, [P. pallidus (Gyllenhal)]. number of collected specimens in brackets, information on the habitat and the collector’s name), host plants, A list of Polydrusus species phenology (Latvian data only; IV, of the Latvian fauna VI, VII, VIII, IX – months from April to September, respectively; Polydrusus Germar, 1817 in parentheses – ten-day period), Subgenus Metallites Germar, 1824 distribution of species and the P. (M.) pallidus (Gyllenhal, 1834) chorotype code. syn.: atomarius (Olivier, 1807 nec Linnaeus, The photographs were taken 1761) using a Zeiss Stereo Discovery V12 References: Mikutowicz 1905, stereomicroscope and an AxioCam Ozols 1982, 1985, Telnov et al. 1997, digital camera. Telnov 2004. Examined material: 1 ind.: Explanations of the abbreviations Saldus d.: Reņģe, 20.05.1934 (1, leg. used: d. – administrative district (system J. Muskars). of administrative districts used in Latvia Host plant genera: Picea, from 1991 to 2008), env. – environs, syn. – synonym, NPT – particularly protected nature Pinus (Pinaceae), Juniperus territory, NP – national park, S – South, N – (Cupressaceae), Corylus North, E – East, W – West. (Corylaceae). Phenology: V. Distribution: Europe [EUR]. Results and discussion Note: A very rare and insufficiently known species in Latvia, During the current research, known only from a few localities. the occurrence of ten species of Polydrusus was confirmed for the Subgenus Polydrusus Germar, 1817 Latvian fauna. West Palaearctic P. (P.) undatus (Fabricius, 1781) – single species [P. impressifrons syn.: tereticollis auct. nec. (DeGeer, 1775) Latvijas Entomologs 2012, 51: 12-26. 15

References: Seidlitz 1872- Šternbergs); Talsi d.: Dundaga, 1875, 1887-1891, Rathlef 1905, restricted area „Kaļkupes ieleja”, Barševskis 1993, 1997, Telnov et al. 5.08.2009 (1, window traps, leg. 1997, Barševskis 2001, Barševskis et A. Pankjāns), Kaļķupe, Puiškalns, al. 2002, Telnov 2004, Kalniņš et al. restricted area „Kaļķupe”, 2.06.2009 2007. (2, leg. A. Barševskis), Slītere, Examined material: 39 ind.: 06.2002 (1, leg. A. Barševskis). Balvi d.: Kuprava, 19.05.1991 (1, Host plant genera: Salix, leg. A. Barševskis); Daugavpils d.: Populus (Salicaceae), Quercus, Daugavpils, Rīga-Krāslava beltway, Fagus (Fagaceae), Betula, Alnus behind Mežciems, 11.05.2008 (1, (Betulaceae), Carpinus, Corylus clearing, leg. A. Barševskis), Dviete (Corylaceae), Pinus, Picea (Pinaceae). flood-lands, Zamečkas castle mound, Phenology: IV-VIII. 18.06. 2010 (1, leg. M. Balalaikins, General distribution: A. Bukejs), Ilgas, Silene Nature Park, Europe, N Kazakhstan, Siberia, the 17.-20.06.2008 (1, leg. J. Daņilova, A. Russian Far East, Iran [SIE]. Zdankovska), Pilskalne, Nature Park „Pilskalnes Siguldiņa”, 9.05.2005 P. (P.) fulvicornis (Fabricius, 1792) (3, leg. A. Barševskis); Jēkabpils syn.: ruficornis (Bonsdorff, 1785 nec d.: Dunava, 25.04.1998 (3, leg. A. Linnaeus, 1758) Barševskis), Rubene, 28.04.1999 (3, References: Fleischer 1829, leg. I. Leiskina), Viesīte, 15.04.2008 Seidlitz 1872-1875, 1887-1891, (11, leg. A. Barševskis); Krāslava Rathlef 1905, Barševskis 1993, 1997, d.: Baltica, 24.05.1990 (1, leg. A. Telnov et al. 1997, Barševskis 2001, Barševskis); Liepāja d.: Kazdanga, Barševskis et al. 2002, Telnov 2004. 7.07.1975 (2, leg. L. Danka); Ludza Examined material: 81 ind.: d.: 1.5 km SW Gāgari, 56°26`44``N Aizkraukle d.: Koknese, 28.07.1946 027°50`02``E, 10.05.2008 (2, old (1, leg. A. Strand); Cēsu d.: Dzērbene, clearing, leg. A. Bukejs); Madona d.: 3.07.2006 (1, leg. A. Barševskis, Krustkalni Nat. Reserve, 23.05.1991 U. Valainis, A. Pankjāns), Lode, 2.- (1, leg. A. Barševskis), Mārciena, 9.07.2001 (1, alder forest, leg. J. 7.07.2006 (1, near Arona river, leg. Gailis), Vecpiebalga, 3.07.1991 (1, A. Pankjāns, A. Barševskis); Preiļi meadow, leg. D. Teļnov); Daugavpils d.: Galēni, 19.05.1991 (1, leg. G. d.: Bebrene, 15.06.2006 (3, leg. Kukars), Stabulnieki, 24.04.1991 E. Rudāns), 18.06.2006 (2, leg. E. (1, leg. A. Barševskis); Rīga d.: Rudāns), Faltopi, 15.06.1989 (2, „Pumpuri” (1, on Betula, leg. M. leg. A. Barševskis), Ilgas, Silene 16 On Latvian weevils of the subfamily Entiminae: Genus Polydrusus ...

Nature Park, 13.06.1989 (1, leg. A. A. Barševskis), 23.-24.06.2008 (1, Barševskis), 9.06.1992 (1, leg. A. leg. A. Barševskis); Rīga d.: Annuškas Barševskis), 17.06.1993 (2, leg. A. 6.08.1969 (1, leg. unknown), Barševskis), 28.06.1994 (1, leg. A. Bajārkrogs, 6.07.1969 (3, on Alnus, Barševskis), 29.06.1994 (1, leg. A. leg. unknown), Garupe, 20.06.1976 Barševskis), 21.06.1995 (2, leg. A. (2, leg. S. Burlakovs), 20.06.1976 Barševskis), 06.-07. 2000 (3, leg. I. (2, leg. V. Lazovskis), Saulkrasti, Haka, G. Hļebnaja), 4.07.2000 (1, leg. 22.06.1973 (1, leg. M. Šternbergs), A. Barševskis), 2.-10.07.2004 (1, leg. Sigulda, 6.06. 1969 (1, meadow, leg. A. Barševskis), Pilskalne, 29.05.1993 unknown), 19.06.1969 (1, meadow, (1, leg. A. Barševskis), Šedere, unknown leg.), 25.06. 1969 (1, Straumēni house, 5.06.2010 (2, leg. forest, leg. unknown), 16.07.1969 M. Janovska), Vecsaliena, Mārkalne (3, leg. unknown), 17.07.1969 (2, river, Lejzemnieki house, 21.05.2008 meadow, leg. unknown) 27.08.1969 (1, leg. A. Pankjāns); Jēkabpils (1, leg. unknown); Saldus d.: Reņģe, d.: Dunava, 23.06.1993 (4, leg. A. 5.05.1932 (1, leg. J. Muskars); Talsi Barševskis), 22.-23.06.1998 (5, leg. d.: Slītere NP, Pitragsupe, 7.07.2010 A. Barševskis), Jēkabpils, 5.08.1922 (1, leg. R. Cibuļskis), Stende (1, leg. J. Muskars), Rubene, 13.08.1973 (1, leg. M. Šternbergs), 8.06.1998 (1, leg. I. Leiskina), Zasa, 18.08.1973 (1, on Trifolium, leg. 19.06.2000 (1, leg. I. Leiskina); M. Šternbergs); Valka d.: Trikāta, Jelgava d.: Svēte 18.06.1972 (2, bank 23.06.1992 (2, leg. M. Kalniņš); of river, leg. unknown), Krāslava Valmiera d.: Mazsalaca, 15.07.1992 d.: Baltica, 24.05.1990 (1, leg. A. (1, meadow, leg. unknown). Barševskis), 25.05.1990 (1, leg. A. Host plant genera: Salix Barševskis), Kaplava, 10.07.1991 (Salicaceae), Fagus (Fagaceae), (1, leg. A. Barševskis), Piedruja, Betula, Alnus (Betulaceae), Carpinus, 23.05.1989 (3, leg. A. Barševskis), Corylus (Corylaceae), Rubus, Rosa Ūdrīši, Tartaks, 55°54`15``N (Rosaceae). 026°48`54``E, 30.05.2008 (1, leg. Phenology: V-VIII. A. Pankjāns), Šķeltova, Barševski General distribution: Europe, house, 17.07.2008 (1, leg. A. N and W Kazakhstan, Siberia, the Barševskis); Kuldīga d.: Renda Russian Far East [SIE]. 26.05.1973 (2, leg. M. Šternbergs); Ogre d.: Dzelmes, 12.06.2009 (1, Subgenus Eustolus Thomson, 1859 leg. A. Barševskis); Preiļi d.: Jersika, P. (E.) flavipes (DeGeer, 1775) Kurpnieki house, 27.05.2007 (2, leg. References: Seidlitz 1872- Latvijas Entomologs 2012, 51: 12-26. 17

1875, 1887-1891, Rathlef 1905, on Salix, leg. A. Bukejs), Dviete, Barševskis 1997, Barševskis 2001, 12.07. 2009 (2, on Salix, leg. M. Barševskis et al. 2002, Telnov 2004. Balalaikins), Slutišķi, 1.07.1995 (1, Examined material: 6 ind.: Daugava valley, leg. A. Barševskis); Daugavpils d.: Upīte, 28.07.1992 Jēkabpils d.: Dunava, 18.07.1995 (1, leg. A. Barševskis); Vabole, (1, leg. A. Barševskis), Vandāni, 13.07.1997 (1, leg. A. Barševskis); 26.06.2009 (1, bank of Daugava, on Jēkabpils d.: Tadenava, 1.06. 2002 Salix, leg. M. Balalaikins); Krāslava (1, leg. A. Barševskis); Madona d.: d.: Indrica, 17.06.1989 (1, leg. A. Ošupe, 2.5 km. NE lake Lubāns, Barševskis), Piedruja, 07.1988 (2, on 56°50`03``N 26°56`05``E, 6.07.2008 Daugava islands, leg. A. Barševskis); (1, wet meadow, bank of Aiviekste Rīga d.: Sigulda, 16.07.1969 (2, on river, leg. M. Balalaikins, A. Bukejs); Salix, leg. unknown). Talsi d.: Mazirbe, 10.07.2004 (1, Host plant genera: Salix, leg. A. Barševskis); Ventspils d.: Populus (Salicaceae), Quercus Moricsala nature reserve, 15.07.2008 (Fagaceae), Acer (Aceraceae), (1, leg. V. Alekseev, A. Pavlova). Betula, Alnus (Betulaceae), Corylus Host plant genera: Salix, (Corylaceae). Populus (Salicaceae), Betula, Alnus Phenology: VI-VIII. (Betulaceae), Quercus (Fagaceae), General distribution: Carpinus (Corylaceae). Europe, The Caucasus, Turkey, W Phenology: VI-VII. Kazakhstan, Central Asia, Siberia, the General distribution: Russian Far East, Mongolia [CAE]. Europe, The Caucasus, Iran, Siberia, the Russian Far East [SIE]. P. (E.) pterygomalis Boheman, 1840 References: Seidlitz 1872- P. (E.) corruscus Germar, 1824 1875, 1887-1891, Rathlef 1905, References: Mikutowicz 1905, Lindberg 1932, Telnov et al. 1997, Lindberg 1932, Barševskis 1993, Telnov 2004, Kalniņš et al. 2007. 1997, Telnov et al. 1997, Telnov Examined material: 2 2004, Kalniņš et al. 2007. ind.: Daugavpils d.: Ilgas, Silene Examined material: 12 ind.: Nature Park, 20.08.2002 (2, leg. A. Daugavpils d.: Butišķi, 1.07.2009 Barševskis); (1, bank of Daugava river, on Salix, Host plant genera: Salix, leg. M. Balalaikins, A. Bukejs), Populus (Salicaceae), Quercus, Fagus Daugavpils SE env., 2 km. SE Apses, (Fagaceae), Betula (Betulaceae), 1.08.2009 (1, bank of Daugava river, Carpinus, Corylus (Corylaceae), 18 On Latvian weevils of the subfamily Entiminae: Genus Polydrusus ...

Crataegus (Rosaceae). Phenology: V-VII. Phenology: VIII. General distribution: General distribution: Europe, Iran, N Africa; introduced to Europe, the Caucasus, Turkey, Iran, N N America [WPA]. Kazakhstan, Central Asia, W Siberia [CAE]. Subgenus Eudipnus Thomson, 1859 P. (Eud.) mollis (Ström, 1768) P. (E.) impressifrons Gyllenhal, syn.: micans (Fabricius, 1792) 1834 References: Fleischer 1829, References: Seidlitz 1872- Seidlitz 1872-1875, 1887-1891, 1875, 1887-1891, Rathlef 1905, Rathlef 1905, Lindberg 1932, Lindberg 1932, Barševskis 1997, Barševskis 1993, Barševskis 1997, Telnov et al. 1997, Telnov 2004, Telnov et al. 1997, Barševskis 2001, Kalniņš et al. 2007. Barševskis et al. 2002, Telnov 2004. Examined material: 9 Examined material: 41 ind.: ind.: Cēsu d.: Līgatne, 11.06.1974 Aizkraukle d.: Rīteri, 20.06.2006 (1, leg. L. Danka); Daugavpils (1, leg. A. Barševskis), 05.2009 (6, d.: Daugavpils, near Mežciems, leg. A. Barševskis), 8.06.2009 (1, 1.06.2008 (1, bank of Daugava river, leg. R. Orlovskis, A. Barševskis), leg. A. Bukejs), fortress, 17.06.2009 Skrīveri, arboretum, 26.04.2008 (1, bank of Daugava river, on Salix, (1, leg. A. Barševskis), 05.2009 leg. A. Bukejs), Daugavpils SE env., (3, leg. A. Barševskis), Daugavpils 2 km. SE Apses, 5.07.2010 (1, bank d.: Bebrene, 16.06.2006 (1, leg. E. of Daugava river, on Salix, leg. M. Rudāns), Daugavas loki Nature Park, Balalaikins), Ilgas, Silene Nature Vecpils, 2,8 km S Naujene, 1,5 km Park, 1994 (1, leg. A. Barševskis); SSW Vecpils, Starozamkovij rov, Rīga d.: Sigulda, 12.05.1969 (1, leg. 55°54`10``N 026°43`51``E, 9.05.2008 unknown), 16.07.1969 (1, on Salix, (1, Daugava river valley, broad leg. unknown), Silciems, 30.05.1939 leaved forest and meadowy with (1, leg. M. Stiprais); Valka d.: Trikāta, glens, leg. U. Valainis), Daugavas 23.06.1992 (1, leg. unknown). loki Nature Park, Vecpils, 2,8 km Host plant genera: Salix, S Naujene, 1,5 km SSW Vecpils Populus (Salicaceae), Quercus, 55°54`10``N 026°43`51``E, 9.05.2008 Fagus (Fagaceae), Betula, Alnus (1, leg. R. Cibuļskis), Doļnaja, (Betulaceae), Carpinus, Corylus Dvietes flood-lands, Daugava river (Corylaceae), Ulmus (Ulmaceae), valley, 18.06.2010 (1, meadow, leg. Crataegus, Rosa (Rosaceae). M. Balalaikins, A. Bukejs), Ilgas, Latvijas Entomologs 2012, 51: 12-26. 19

11.06.1994 (1, leg. A. Barševskis), Crataegus (Rosaceae). 2.07.1996 (1, leg. A. Barševskis), 8.- Phenology: IV(1)-VII. 10.06.1998 (1, leg. A. Barševskis), General distribution: Europe, 06.-07.2000 (1, leg. I. Haka, G. the Caucasus, Turkey, Kazakhstan, Hļebnaja), Naujene, 55°54`44``N Siberia [SIE]. 26°49`28`È, 29.04.2008 (2, Daugava river valley, leg. A. Pankjāns, U. Subgenus Neoeustolus Alonso- Valainis), Šedere, Straumēni house, Zarazaga et Lyal, 1999 1.-3.05.2008 (3, leg. M. Janovska), P. (N.) cervinus (Linnaeus, 1758) 10.-11.05.2008 (1, leg. M. Janovska), References: Seidlitz 1872- 1.06.2008 (1, leg. M. Janovska), 1875, 1887-1891, Rathlef 1905, Šedere, 2.05.2009 (1, near Šarlote Barševskis 1993, Barševskis 1997, lake, leg. M. Janovska), Šedere, NPT Telnov et al. 1997, Telnov 2004, Raudas meži, 13.05.2010 (1, leg. Kalniņš et al. 2007. K. Aksjuta), Vecsaliena, Mārkalne Examined material: 36 ind.: river, Lejzemnieki house, 21.05.2008 Aizkraukle d.: Rīteri, 29.06.2006 (1, leg. A. Pankjāns); Krāslava (1, leg. A. Pankjans); Daugavpils d.: Šķeltova, Barševski house, 6.- d.: Daugavpils, 16.06.2005 (1, leg. 7.04.1990 (1, leg. A. Barševskis), A. Barševskis), Elerne, 55°55`05``N 1.05.1996 (1, leg. A. Barševskis), 26°41`18`È, 19.06.2009 (3, bank of 10.06.2010 (1, leg. A. Barševskis, Daugava river, leg. M. Nitcis), Ilgas, K. Barševska), Saldus d.: Reņģe, Silene Nature Park, 6.06.1994 (1, leg. 20.05.1934 (2, leg. J. Muskars); Talsi A. Barševskis), 25.-30.05.1998 (3, leg. d.: Slītere, 4.05.1998 (1, malayse trap, A. Barševskis), 29.04.-10.07.2000 (1, leg. N. Savenkovs), Slītere National leg. A. Rutka), 06.-07. 2000 (1, leg. park, 06.2002 (1, leg. U. Valainis, I. Haka, G. Hļebnaja), 14.-20.06.2002 A. Barševskis), 30.05.2006 (1, leg. (1, leg. A. Barševskis) 6.-15.06.2004 A. Barševskis), Kaļķupe, Puiškalns (1, leg. A. Barševskis), 28-30.06.2004 restricted area, Kaļķupes valley, (1, leg. A. Barševskis), 7.06.1997 2.06.2009 (1, leg. R. Cibuļskis), (1, leg. A. Barševskis), 17.06.2008 Kaļķi, restricted area, Kaļķupes (1, leg. R. Cibuļskis), 8.06.2009 ieleja, 57°32`31``N 022°30`45`È, (2, leg. J. Stašķeviča), Līksna, 3 12.05.2009 (1, leg. A. Barševskis), km. N Daugavpils, 55°56`01``N 13.07.2009 (1, leg. J. Ivanova). 026°33`36`È, 28.07.2009 (1, leg. A. Host plant genera: Quercus, Bukejs), Ļubesti, 16.06.2005 (1, leg. Fagus (Fagaceae), Carpinus, Corylus U. Valainis), Mežciems, 2.07.1991 (Corylaceae), Tilia (Tiliaceae), (1, leg. A. Barševskis), 28.05.1993 20 On Latvian weevils of the subfamily Entiminae: Genus Polydrusus ...

(1, leg. A. Barševskis); Jēkabpils d.: E. Rudāns), Daugavpils, beltway Dunava, 22.-23 .06.2006 (2, leg. A. between Križi and Ļubesti, 8.06.2001 Barševskis), 23.-30.06.2007 (1, leg. (1, leg. A. Barševskis), Ilgas, Silene K. Barševska), Rubene, 7.07.1999 Nature Park, 9.04.1994 (1, leg. A. (1, leg. I. Leiskina), 4.06.2001 (1, Barševskis), 21.-24.04.1995 (2, leg. leg. I. Leiskina), Zasa, 22.07.1998 A. Barševskis), 25.-30.05.1998 (1, (1, leg. I. Leiskina); Krāslava d.: leg. A. Barševskis), 5.05.1999 (2, Krāslava, 5.06.1989 (2, leg. A. leg. A. Barševskis), 6.06.2000 (1, Barševskis), Varnaviči, 22.05.1989 leg. A. Barševskis), 06. –07.2000 (1, leg. A. Barševskis); Rīga d.: (1, leg. I. Haka, G. Hļebnaja), 17.- Kūdra, 10.06.2000 (1, leg. A. 20.06.2008 (1, leg. J. Daņilova, A. Titovs), 2.06.2006 (2, leg. A. Titovs), Zdankovska), 8.06.2009 (1, leg. J. 8.06.2006 (2, leg. A. Titovs); Valka d.: Stašķeviča), Ļubesti, 16.06.2005 (2, Seda, 3.07.2006 (1, Seda bog, leg. A. leg. U. Valainis), Naujene, Daugavas Barševskis, U. Valainis, A. Pankjāns). loki Nature Park, 55°54`15``N Host plant genera: Salix, 026°48`54``E, 23.05.2008 (1, leg. Populus (Salicaceae), Quercus A. Pankjāns) Svente, near the (Fagaceae), Acer (Aceraceae), Betula, bridge, 16.04.2007 (1, clearing, leg. Alnus (Betulaceae), Tilia (Tiliaceae), A. Soldāns); Jēkabpils d.: Asare, Corylus (Corylaceae), Crataegus, 2.05.1998 (1, leg. I. Leiskina), Prunus (Rosaceae). Dunava, 25.04.1998 (1, leg. A. Phenology: V-VII. Barševskis), Rubene, 28.04.1999 (1, General distribution: Europe, leg. I. Leiskina), Viesīte, 15.04.2008 N Kazakhstan, Siberia [SIE]. (6, leg. A. Barševskis); Krāslava d.: Indrica, 29.05.1991 (1, leg. A. P. (N.) pilosus Gredler, 1866 Barševskis); Ludza d.: 1.5 km SW ° ° syn.: binotatus Thomson, 1868 Gāgari, 56 26`44``N 027 50`02``E, References: Lackschewitz, 10.05.2008 (2, old clearing, leg. Mikutowicz 1939, Barševskis 1993, A. Bukejs); Ogre d.: 4km. NW Barševskis 1997, Telnov et al. 1997, Dīrikupīte river connect with Barševskis 2001, Barševskis et al. Daugava river 3.05.2006 (1, leg. A. 2002, Telnov 2004. Barševskis, U. Valainis, E. Rudans); Examined material: 38 ind.: Rēzekne d.: Puša, 27.05.2002 (1, leg. Aizkraukle d.: Aizkraukle, 4.05.1995 A. Barševskis), 26.06.2002 (1, leg. (1, forest, clearing, leg. A. Barševskis); A. Barševskis), Rušenīca, 30.04.2010 Daugavpils d.: Bebrene, Nature park (1, leg. M. Balalaikins); Rīga d.: Dvietes palienes, 25.06.2006 (1, leg. Jūrmala, Kūdra, 11.05.1997 (1, leg. Latvijas Entomologs 2012, 51: 12-26. 21

A. Titovs), 7.05.2006 (1, leg. A. - Tibiae without longitudinal keels (Fig. 6) ... Titovs), 1.06.2008 (1, leg. A. Titovs), ...... 5 13.05.2010 (1, leg. A. Titovs); Talsi 5 Upper surface covered with brown and d.: Slītere National Park 06.2002 (1, grey, not metallic scales, usually forming a leg. A. Barševskis), „Zilie kalni”, pattern of irregular, oblique stripes on elytra, 2.05.2006 (1, leg. A. Barševskis). especially on posterior half ...... 6 Host plant genera: Salix, - Upper surface covered with green or Populus (Salicaceae), Fagus greenish-blue scales ...... 7 (Fagaceae), Betula, Alnus 6 Pronotum with two lateral transversal (Betulaceae), Sorbus (Rosaceae). impressions Body length 3.2-5.2 mm. Phenology: IV(1)-VI. Habitus (Fig. 4) ...... P. fulvicornis General distribution: Europe, - Pronotum without lateral transversal Siberia, the Russian Far East [SIE]. impressions Body length 4.0-5.8 mm. Habitus (Fig. 5) ...... P. undatus 7 Vertex with two distinct tuberculus in A key to the Latvian Polydrusus lateral sides. Upper surface covered with bright golden-green scales and with erect 1 All femora with tooth ...... 2 setae. Body length 3.8-5.6 mm. Habitus (Fig. - Femora without tooth ...... 4 6). Aedeagus (Fig. 8) ...... P. pterygomalis 2 All femora with very small tooth. Upper - Vertex without tuberculus in lateral sides .... surface black-brown, elytra often duller, legs ...... 8 and antennae yellow or rufous. Body length 8 Rostrum not shorter than its width (Fig. 4.0-5.5 mm. Habitus (Fig. 10) .... P. pallidus 12). Frons with impression. Pronotum almost - All femora with distinct tooth ...... 3 cylindrical. Upper surface covered with 3 All femora covered only with very thin bright golden-green scales and with very scales. Body length 5.0-6.5 mm. Habitus short semi-erect dark setae. Body length 3.8- (Fig. 3) ...... P. pilosus 5.3 mm. Habitus (Fig. 7). Aedeagus (Fig. 9) . - All femora covered with two different ...... P. impressifrons in shape scales, very thin ones and other - Rostrum distinctly shorter, than its width lanceolate scales. Body length 3.9-5.7 mm. (Fig. 11) ...... 9 Habitus (Fig. 2) ...... P. cervinus 9 Upper surface covered with dense metalic- 4 All tibiae with longitudinal keels (Fig. 5). green scales and without erect setae. Frons Upper surface covered with fine, narrow, with impression. Body length 4.0-5.6 mm. linear, shining coppery or golden green Habitus (Fig. 9). Aedeagus (Fig. 7) ...... scales. Body length 6.0-8.5 mm. Habitus ...... P. corruscus (Fig. 1) ...... P. mollis 22 On Latvian weevils of the subfamily Entiminae: Genus Polydrusus ...

- Upper surface covered with not dense References metalic-green scales and with erect setae. Frons flat or slightly convex. Body length Alexandrovich O.R., Lopatin I.K., 4.4-5.6 mm. Habitus (Fig. 8). Aedeagus (Fig. Pisanenko A.D., Tsinkevitch 10) ...... P. flavipes V.A. and Snitko S.M. 1996. A catalogue of Coleoptera (Insecta) of Belarus. Minsk, Acknowledgements Fund Fundamental Research of Republic of Belarus: 53-61 (in For the presented material, we Russian). are grateful to Vitaliy Alexeev and Alonso-Zarazaga M.A., Lyal C.H.C. Anastasiya Pavlova (Kaliningrad, 1999. A world catalogue RU), Kristīne Aksjuta, Arvīds of families and genera of Barševskis, Raimonds Cibuļskis, Curculionoidea (Insecta: Marina Janovska, Māris Nitcis, Coleoptera) (Excepting Ainārs Pankjāns, Arvis Soldāns, Uldis Scolytidae and Platypodidae). Valainis (all - Daugavpils University Barcelona, Entomopraxis: 315 Institute of Systematic biology, LV), pp. Katrīna Barševska and Iveta Leiskina Barševskis A. 1993. The Beetles of (Daugavpils, LV), Aleksandrs Eastern Latvia. Daugavpils, Titovs (Rīga, LV), and students Saule: 221 pp. (in Latvian, of Daugavpils University. Special English abstract). thanks are due to Jānis Dreimanis Barševskis A. 1997. Materials about and Nikolajs Savenkovs (LDM, Riga, Latvian beetles (Coleoptera). – LV) and Aina Karpa (LUBI, Salaspils, Acta coleopterologica latvica 1, LV) for their permission to work with No. 2: 63-71 (in Latvian, English the collections. summary). We also express our sincere Barševskis A. 2001. New and rare thanks to Nikolai Yunakov (St. species of beetles (Insecta: Petersburg, RU) for constructive Coleoptera) in the Baltic states advice. and Belarus. – Baltic Journal of Current research has been Coleopterology 1, No. 1/2: 3-18. done within the framework of the Barševskis A. 2002. Beetles project of European Social Fund (No (Coleoptera). In: Barševskis A., .2009/0206/1DP/1.1.1.2.0/09/APIA/ Savenkovs N., Evarts-Bunders P., VIAA/010). Daniele I., Pētersons G, Pilāts V., Zviedre E., Pilāte D., Kalniņš M., Latvijas Entomologs 2012, 51: 12-26. 23

Vilks K., Poppels A. (eds.) Fauna, 278. flora and vegetation of Silene Korotyaev B.A., Meleshko J.Y. 1997. Nature Park. Daugavpils, Baltic On the systematics of the weevil Institute of Coleopterology: 37- genus Polydrusus (Coleoptera: 60 (in Latvian). Curculionidae). – Zoosystematica Dieckmann L. 1980. Beiträge rossica 6 No. 1/2: 275-286. zur Insektenfauna der DDR: Korotyaev B.A., Ismailova M.S., Coleoptera – Curculionidae Melehko J.E. 2003. A new (Brachycerinae, Otiorhynchinae, species of the weevil genus Brachyderinae). – Beiträge zur Polydrusus Germ. (Coleoptera, Entomologie Berlin 30: 145-310. Curculionidae) from Mountain Egorov A.B., Zherikhin V.V., Daghestan. – Entomologicheskoe Korotyaev B.A. 1996. Family obozrenie 82 No. 2: 437-443 (In Curculionidae – Weevils. In: Ler Russian). P.A. (ed.) Guides to the insects Lackschewitz T., Mikutowicz J. of the Russian Far East. Volume 1939. Zur Koleopterenfauna 3. Coleoptera or beetles. Part 3. des ostbaltischen Gebietes, Vladivostok, Dalnauka: 249-311 II. – Korrespondenzblatt des (in Russian). Naturforscher-Vereins zu Riga Fleischer J. 1829. Beitrag zur Fauna 63: 48-76. der Ostseeprovinzen. Verzeichnis Legalov A.A. 2010. Annotated derjenigen Käfer, die soweit mir checklist of species of bekannt ist, als einheimische bis superfamily Curculionoidea hierzu noch nicht aufgeführt sind. (Coleoptera) from Asian Part of – Die Quatember, Kurländische the Russia. – Amurian zoological Gesellschaft für Literatur und journal 2, No. 2: 93-132. Kunst 1, No. 2: 9-19. Legalov A.A., Ghahari H., Arzanov Hoffmann A. 1950. Faune de Y.G. 2010. Annotated catalogue of France. vol. 52. Coléoptères Curculionid-beetles (Coleoptera: Curculionides (I Partie). Paris, Anthribidae, Rhynchitidae, Federation Française des Societes Attelabidae, Brentidae, des Sciences Naturelles: 486 pp. Brachyceridae, Dryophtoridae Kippenberg H. 1981. Unterfamilie. and Curculionidae) of Iran. – Brachycerinae. In: Freude H., Amurian zoological journal 2, Harde K., Lohse G.A. (eds) Die No, 3: 191-244. Käfer Mitteleuropas. Volume 10, Lindberg H. 1932. Käfer, gesammelt Krefeld, Goecke & Evers: 183- in Lettland 1931. – Folia 24 On Latvian weevils of the subfamily Entiminae: Genus Polydrusus ...

zoologica et hydrobiologica 4, SSR. – Latvijas Entomologs No. 2: 163-166. 25: 20-36 (in Latvian, English Meleshko J.E., Korotyaev B.A. 2003. abstract). A new species of the weevil Ozols G. 1985. The materials on genus Polydrusus (Coleoptera, insects of pine and spruce in Curculionidae) from Turkey. – Latvian forests. Rīga, Zinātne: Zoologicheskii zhurnal 82, No. 208 pp. (in Latvian). 9: 1129–1132 (In Russian). Palm E. 1996. North European Meleshko J.E., Korotyaev B.A. 2005. weevils. 1. The short- Two new species of the weevil nosed species (Coleoptera: genus Polydrusus Germar Curculionidae) - with special (Coleoptera, Curculionidae) reference to the Danish fauna. from Iran. In: Konstantinov A.S., Stensrup, Apollo Books: 356 pp. Tishechkin A., Penev L. (eds). Rathlef H. 1905. Coleoptera Contributions to Systematics Baltica. Käfer-Verzeichnis and Biology of Beetles. Papers der Ostseeprovinzen nach den Celebrating the 80th Birthday of Arbeiten von Ganglbauer und Igor Konstantinovich Lopatin. Reitter. Dorpat, C. Mattiesen: Series Faunistica 43, Sofia– 16+199 pp. Moscow, Pensoft Publishers: Seidlitz G. 1872-1875. Fauna 289-297. Baltica. Die Kaefer (Coleoptera) Mikutowicz J. 1905. Zur der Ostseeprovinzen Russlands. Koleopterenfauna der Dorpat, H. Laakmann: 4+ Ostseeprovinzen Russlands, XLII+142+560 pp. I. – Korrespondenzblatt des Seidlitz G. 1887-1891. Fauna Naturforscher-Vereins zu Riga Baltica. Die Kaefer (Coleoptera) 48: 73-92. der Ostseeprovinzen Russlands. Morris M.G. 1997. Broad- Zweite neu bearbeitete Auflage nosed weevils (Coleoptera: mit 1 Tafel. Königsberg, Curculionidae) (Entiminae). Hartungsche Verlagsdruckerei: Handbooks for the identifcation 12+LVI+192+818 pp. of British insects. Volume 5 No. Silfverberg H. 2011. Enumeratio 17a. Royal Entomology Society, renovata Coleopterorum London: 106 pp. Fennoscandiae, Daniae et Ozols G. 1982. Investigation of the Baltiae. – Sahlbergia 16 No. 2: fauna of dendrophagous beetles 1-144. of pine and spurce in the Latvian Sleeper E.L. 1957. Notes on Latvijas Entomologs 2012, 51: 12-26. 25

North American species of Polish Scientific Publishers: 130 Polydrusus Germar (Coleoptera: pp. Curculionidae, Brachyderinae). Tamutis V., Tamutė B., Ferenca R. – The Ohio Journal of science 2011. A catalogue of Lithuanian 57, No. 3: 129 – 134. beetles (Insecta, Coleoptera). – Smreczynski S. 1966. The key for ZooKeys 121: 1–494. identification of Polish insects. Telnov D. 2004. Check-List of Latvian Beetles – Coleoptera. Weevils Beetles (Insecta: Coleoptera). – Curculionidae. Subfamilies: Second edition. In: Telnov D. Otiorhynchinae, Brachyderinae. (ed.) Compendium of Latvian Volume 19, No, 98b. Warsaw, Coleoptera. Volume 1. Rīga,

Figures 1-10. Species of Polydrusus, habitus (dorsal view): 1 - P. mollis, 2 - P. cervinus, 3 - P. pilosus, 4 - P. fulvicornis, 5 - P. undatus, 6 - P. pterygomalis, 7 - P. impressifrons, 8 - P. flavipes, 9 - P. corruscus, 10 - P. pallidus. 26 On Latvian weevils of the subfamily Entiminae: Genus Polydrusus ...

Pertovskis & Ko: 114 pp. (Coleoptera, Curculionidae) in Telnov D., Barsevskis A., Savich Ukraine. Unpublished doctoral F., Kovalevsky F., Berdnikov theses. Zoological Institute of the S., Doronin M., Cibulskis R., Russian Academy of Sciences, Ratniece D. 1997. Check-List St. Peterburg, Russia: 489 pp. of Latvian Beetles (Insecta: Coleoptera). – Mitteilungen des Internationalen Entomologischen Received: September 23, 2011. Vereins e.V., Supplementum 5: 1-140 pp. Yunakov N.N. 2003. Weevils of subfamily Entiminae

Figures 11-20. Morphological details of Polydrusus species. 11-12 rostrum (dorsal view): 1 - P. flavipes, 2 - P. impressifrons; 13-14 pronotum (dorsal view): 13 - P. f u lv i cor ni s , 14 - P. und atu s ; 15-16 front tibiae: 15 - P. mol li s , 16 - P. pilosus; 17-20 aedeagus (dorsal view): 17 - P. corruscus (after Palm 1996), 18 - P. pterygomalis, 19 - P. impressifrons, 20 - P. flavipes.