Acta Zoologica Lituanica, 2011, Volumen 21, Numerus 4
DOI: 10.2478/v10043-011-0031-1
ISSN 1648-6919
On Latvian Entiminae (Coleoptera: Curculionidae): 2. Tribes Trachyphloeini Lacordaire, 1863 and Sciaphilini Sharp, 1891 Maksims BALALAIKINS Institute of Systematic Biology, Daugavpils University, Vienības St. 13, LV-5401 Daugavpils, Latvia. E-mail:
[email protected] Abstract. New faunal data on eight species of the tribes Trachyphloeini and Sciaphilini are presented. A total of 471 specimens of these tribes were reviewed. Bibliographical information on these groups in Latvia is summarised for the first time. The first records of Trachyphloeus heymesi Hubenthal, 1934 and Barypeithes mollicomus (Ahrens, 1812), in the Latvian fauna are reported. One species, Trachyphloeus spinimanus Germar, 1824, is excluded from the list of Latvian Coleoptera. The annotated list including 12 species and the illustrated key of Latvian Trachyphloeini and Sciaphilini are given. Key words: Trachyphloeini, Sciaphilini Latvia, fauna, bibliography, new records, identification
Introduction This publication continues our study on weevils of the Latvian fauna (Balalaikins (in press)). There are 13 genera and approximately 247 species of Trachyphloeini known from the Palaearctic region (Borovec 2009). In northern Europe, Trachyphloeini are represented by nine species (Silfverberg 2004) and in Latvia by five species. The tribe Sciaphilini in the Palaearctic region comprises 30 genera (Alonso-Zarazaga & Lyal 1999) including the genus Brachysomus Schönherr, 1823 with 48 species (Holecova et al. 2008; Benedikt 2009), genus Sciaphilus Schönherr, 1823 with 10 species (Bajtenov 1974), and genus Barypeithes Jacquelin du Val, 1854 with approximately 37 species (Lachowska et al. 2005). Ten species and six genera of Sciaphilini are known to occur in northern Europe (Silfverberg 2004) and three genera with four species are reported for the Latvian fauna (Telnov 2004). In adjacent territories, the number of recorded Trachyphloeini and Sciaphilini species slightly varies: nine species and five genera are recorded in Belarus (Alexandrovich et al. 1996), six species and three genera in Estonia (Silfverberg 2004), and 11 species and five genera in Lithuania (Tamutis et al. 2011). The first information on species of Trachyphloeini and Sciaphilini in Latvia was published at the beginning of the 19th century (Fleischer 1829). More than 10 studies appeared in Latvia subsequently. Barševskis (1997) compiled the list of Latvian Curculionidae including eight species of these tribes with faunal data on seven of them. Fragmentary faunal data can be also found in the
following articles: Barševskis (1993); Lackschewitz and Mikutowicz (1939); Varzinska and Milenders (1981). The aim of the current paper is to summarize the information available on Trachyphloeini and Sciaphilini in Latvia. The bibliographical information on this weevil subfamily in Latvia is compiled for the first time. The annotated list and the illustrated key to Latvian species are presented.
Material and methods A total of 471 specimens were reviewed in the current study. The examined material is deposited in the collection of the Institute of Systematic Biology of Daugavpils University (DUBC, Daugavpils, Latvia), the entomological collection of the Institute of Biology of the Latvian University (LUBI, Salaspils, Latvia), the collection of the Latvian Natural History Museum (LDM, Rīga, Latvia), A. Barševskis’ (Daugavpils, Latvia), and C. Müthel’s (Latvian Natural History Museum, Rīga, Latvia) collections, and the author’s collection (Daugavpils, Latvia). The following keys were used for species identification: (Dieckmann 1980; Hoffmann 1958; Kippenberg 1981; Morris 1997; Palm 1996; Smreczynski 1966; Yunakov 2003). We followed the systematics suggested by Silfverberg (2004) and Borovec (2009). The nomenclature and synonymy used are in compliance with Borovec (2009) and Alonso-Zarazaga and Lyal (1999). The general distribution of species and host plants is presented in the following works: Borovec 2009; Dieckmann 1980; Hoffmann 1950; Kippenberg 1981; Legalov 2010; Palm 1996;
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Smreczynski 1966; Yunakov 2003. The classification of chorotypes follows the one suggested by Vigna Taglianti et al. (1999). The transcript of chorotypes codes is as follows: EUR – European, NEU – N-European, PAL – Palaearctic, SIE – Sibero-European, TUE – Turano-European. The following information is given for each species: scientific name & author, published bibliographical sources for Latvia, faunal data (sampling locality and date, number of collected specimens in parentheses, information on the habitat and the collector’s name), host plants, phenology (Latvian data only; IV, VI, VII, VIII, IX, X, XI – months from March to November respectively; in parentheses – ten-day period), general distribution of species and the chorotype code. The species marked with dashes (–) was previously reported for the Latvian fauna, but, in fact, it is absent from Latvia, as the previous record was based on misidentification. This species is herewith excluded from the list of Latvian Coleoptera. The abbreviations used stand for: d. – district (the system of administrative districts used in Latvia from 1991 to 2008), env. – environs, Isl. – island, NP – Nature Park, NR – Nature Reserve, S – South, N – North, E – East, W – West. The photos were taken with a Nikon digital camera using a stereomicroscope Nikon SMZ 745T.
Results and discussion The current research confirmed the occurrence of eight species of Trachyphloeini and Sciaphilini in Latvia. Two species, Trachyphloeus heymesi Hubenthal, 1934 and Barypeithes mollicomus (Ahrens, 1812) are reported for the Latvian fauna for the first time. Trachyphloeus spinimanus Germar, 1824 was removed from the list of Latvian Coleoptera. One specimen of this species was reported for Latvia (Barševskis 1997), but this record was based on misidentification. Trachyphloeus digitalis Gyllenhal, 1827 is mentioned only in old bibliographical sources (Seidlitz 1872–1875, 1887–1891; Rathlef 1905) and in the published catalogues of Latvian Coleoptera (Telnov et al. 1997; Telnov 2004), Romualdius angustisetulus Hansen, 1915 is mentioned only in Telnov’s (2004) catalogue. The occurrence of these species in Latvia needs confirmation. Overall, the list of Trachyphloeini and Sciaphilini species of Latvian fauna includes ten species and six genera. The analysis of species distribution of the tribes Trachyphloeini and Sciaphilini in Latvia reveals that the
Balalaikins M.
range of chorotypes is rather wide: EUR – European – six species, N-European – one species, Palaearctic – one species, Sibero-European – three species. List of species of the Latvian fauna Family Curculionidae Latreille, 1802 Subfamily Entiminae Schönherr, 1826 Trachyphloeini Lacordaire, 1863 Genus Trachyphloeus Germar, 1817 (-) T. spinimanus Germar, 1824 References: Barševskis 1997 (misidentification); Barševskis 2002; Telnov 2004. Host plants: phyllophagous on herbaceous plants. General distribution: Europe excl. N, the Caucasus, Turkey, the southern part of the European territory of Russia, Central Asia (Kazakhstan), W Siberia. [TUE] Note: previous report of this species from Daugavpils district: Silene NP (Barševskis 1997) was based on misidentification. Therefore it was removed from the list of Latvian Coleoptera. T. digitalis Gyllenhal, 1827 References: Seidlitz 1872–1875, 1887–1891; Rathlef 1905; Telnov et. al 1997; Telnov 2004. Examined material: not confirmed by the author. Host plants: Helianthemum (Cistaceae); Lotus (Fabaceae). Phenology: no data for Latvia. General distribution: Europe N. [NEU] Note: rare species in all its distribution range. Actual faunal data on the occurrence of this species in Latvia are absent. T. heymesi Hübenthal, 1934 Examined material: six specimens: Daugavpils d.: Slutišķi, 7 July 1995 (1, leg. A. Barševskis), 16 March 1997 (1, leg. A. Barševskis); Jēkabpils d.: Vandāni, 4–18 July 2010 (4, pitfall traps, leg. M. Balalaikins). Host plants: Helianthemum (Cistaceae), Hieracium (Compositae). Phenology: III (2), VII. General distribution: Europe, W Siberia. [EUR] Note: new species for the Latvian fauna, and also for the Eastern Baltic region. T. scabricul (Linnaeus, 1771) Host plants: Artemisia, Hieracium (Compositae); Helianthemum (Cistaceae); Vicia (Fabaceae), Salix (Salicaceae); Symphoricarpus (Caprifoliaceae); Quercus (Fagaceae).
On Latvian Entiminae
General distribution: Europe. [EUR] Note: probable species, similar to T. heymesi. Reported from Estonia and Lithuania. Romualdius Borovec 2009 R. bifoveolatus (Beck, 1817) Trachyphloeus bifoveolatus (Beck, 1817) Trachyphloeus scaber auct. nec (Linnaeus, 1758) References: Seidlitz 1872–1875, 1887–1891; Rathlef 1905; Barševskis 1997, 2002; Telnov et al. 1997; Telnov 2004. Examined material: 78 specimens: Daugavpils d.: Daugavpils, 9 May 1998 (1, leg. A. Barševskis), 3 July 2007 (1, leg. K. Barševska, A. Barševskis), Daugavas loki NP, May 2002 (1, leg. A. Barševskis), Elerne, 18 April 2011 (1, leg. M. Balalaikins), Ilgas, Silene NP, 15 June 1996 (1, leg. A. Barševskis), 9–12 September 1996 (1, leg. A. Barševskis), 25–30 May 1998 (1, leg. A. Barševskis), 6 June 2000 (1, leg. A. Barševskis), April 2002 (1, leg. A. Barševskis), 15 April 2003 (1, leg. U. Valainis), 15 November 2005 (1, near Quercus robur, leg. U. Valainis, A. Bukejs), 27 June 2008 (1, leg. T. Vasiļjeva, S. Pupiņa), Līksna, 1–31 July 2001 (7, leg. A. Barševskis); Jēkabpils d.: Dunava, 11–12 August 1998 (2, leg. A. Barševskis), Jēkabpils, 12 August 1922 (2, leg. J. Muskars), Rubene, 23 July 1998 (1, leg. I. Leiskina), 27 March 1999 (2, leg. I. Leiskina), Vandāni, 4–18 July 2010 (4, pitfall traps, leg. M. Balalaikins); Krāslava d.: Izvalta, May (1, leg. A. Barševskis), Limbaži d.: Kirbiži, 17 June 1971 (1, leg. unknown), Ludza d.: Bļaši, 23 June 2009 (3, leg. M. Balalaikins), Tronova, 4–18 July 2010 (13, sandy agrocenosis, pitfall traps, leg. M. Balalaikins); Preiļi d.: Aglona, 27 April 2007 (21, leg. M. Janovska, A. Barševskis), Jersika, Kurpnieki house, 23–24 June 2009 (1, leg. K. Barševska), 9–12 July 2009 (2, leg. A. Barševskis); Tukums d.: 18 May 1991 (2, leg. M. Kalniņš); Ventspils d.: Jūrkalne, 28 July 2005 (2, leg. A. Barševskis, U. Valainis, A. Bukejs), Moricsala NR, 3 August 2004 (1, leg. A. Barševskis), 5–6 October 2011 (1, leg. A. Barševskis). Host plants: phyllophagous on herbaceous plants. Hieracium (Compositae). Phenology: IV (2), V, VI, VII, VIII, IX, XI (2). General distribution: Europe, Madeira, the Canary Islands, the Caucasus, Turkey, W Siberia, N Africa, Kazakhstan. R. bifoveolatus has been introduced to the USA and Canada (Brown 1965). [PAL] Note: a very common and widespread species in Latvia. R. angustisetulus Hansen, 1915 Trachyphloeus angustisetulus Hansen, 1915 References: Telnov 2004. Examined material: none.
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Host plants: Lotus, Trifolium (Fabaceae). Madeira. Phenology: no data for Latvia. General distribution: Europe, Madeira, Canary Islands. [EUR] Note: the occurrence of this species in Latvia needs further confirmation. Cathormiocerus Schoenherr, 1842 C. aristatus (Gyllenhal, 1827) Trachyphloeus aristatus Gyllenhal, 1827 References: Fleischer 1829; Seidlitz 1872–1875, 1887– 1891; Rathlef 1905; Barševskis 1997; Telnov et al. 1997; Telnov 2004. Examined material: eight specimens: Daugavpils d.: Daugavas loki NP, May 2002 (1, leg. A. Barševskis), Elerne, May 2002 (1, leg. A. Barševskis), July 2002 (1, leg. A. Barševskis), Ilgas, Silene NP, 9–12 September 1996 (1, leg. A. Barševskis), Vabole, July 1993 (1, leg. M. Jukšs); Ludza d.: Tronova, 4–18 July 2010 (1, sandy agrocenosis, pitfall traps, leg. M. Balalaikins); Ventspils d.: Jūrkalne, 28 July 2005 (2, leg. A. Bar ševskis, U. Valainis, A. Bukejs). Host plants: phyllophagous on herbaceous plants. Phenology: V, VII, XI (2). General distribution: Europe, the Caucasus, Turkey, Central Asia (Kazakhstan), Siberia. Has been introduced to Canada. [SIE] Note: insufficiently known species in Latvia. Sciaphilini Sharp, 1891 Sciaphilus Schönherr, 1823 S. asperatus (Bonsdorff, 1785) Sciaphilus muricatus (Fabricius, 1792) References: Seidlitz 1872–1875, 1887–1891; Rathlef 1905; Varzinska & Milenders 1981; Barševskis 1993, 1997, 2002; Telnov et al. 1997; Telnov 2004. Examined material: 158 specimens: Aizkraukle d.: Aizkraukle, 21 June 1995 (2, clearing of a broad-leaved tree forest, leg. A. Barševskis), Rīteri, 20 June 2006 (1, leg. A. Barševskis); Balvi d.: Kuprava, 19 May 1991 (1, leg. A. Barševskis), Daugavpils d.: Bebrene, 18 June 2006 (1, leg. E. Rudāns), 26–27 November 2006 (1, leg. E. Rudāns), Daugavpils 28 May 1993 (4, leg. A. Barševskis), 30 April 2011 (1, leg. Vasiļjeva), Demene, 17 May 1994 (1, leg. A. Barševskis), Dviete, Zamečkas castle mound, 18 June 2010 (4, leg. M. Balalaikins, A. Bukejs), Ilgas, Silene NP, 18 June 1993 (1, leg. A. Barševskis), 2 September 1993 (1, leg. A. Barševskis), 6 June 1994 (2, leg. A. Barševskis), 18 June 1994 (1, leg. A. Barševskis), 21 June 1995 (1, leg. A. Barševskis), 9 May 1996 (2, leg. A. Barševskis), 29 May 1996 (1, leg. A. Barševskis), 9–12 Septem-
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ber 1996 (1, leg. A. Barševskis), 6–15 June 2004 (2, leg. A. Barševskis), July 2005 (1, clearing, near a maple tree, leg. A. Barševskis), 10 May 2006 (1, leg. A. Barševskis), 1–5 July 2006 (1, leg. A. Barševskis), 18 June 2008 (1, leg. R. Cibuļskis), 26–30 June 2009 (1, leg. M. Zolovs), 2 August 2009 (1, leg. A. Barševskis), 10 September 2009 (1, leg. A. Barševskis), Krauja, 19 June 2009 (1, leg. R. Cibuļskis), Pilskalne, 22 August 1989 (3, leg. A. Barševskis), 22 September 1989 (14, leg. A. Barševskis), Silene, 6 July 1995 (1, leg. A. Barševskis), Stropi, 8 May 2010 (2, leg. A. Bu kejs), Šedere, 1–3 May 2008 (13, leg. M. Janovska), 11 May 2008 (1, leg. K. Aksjuta), Vabole, 1993 (2, leg. M. Jukšs), Vecpils, 2.8 km S Naujene, Daugavas loki NP, 9 May 2008 (2, a broad-leaved forest and a meadow with glens, U. Valainis), Višķi, 13 May 1985 (1, leg. A. Barševskis), Gulbene d.: Ušurs, 8 June 2005 (1, along marsh, leg. A. Barševskis); Jēkabpils d.: Birži, 8 August 2008 (1, leg. A. Barševskis), Dunava, 11–12 August 1998 (1, leg. A. Barševskis), 6 September 1998 (1, agrocenosis, leg. A. Barševskis), 1–8 August 2006 (1, leg. A. Barševskis), 29 August 2006 (1, leg. A. Barševskis), 16 August 1997 (1, leg. A. Barševskis), 18 May 2008 (1, leg. A. Barševskis), 16 August 2008 (1, leg. A. Barševskis), Jēkabpils, 8 August 2008 (1, leg. A. Barševskis), Rubene, 8 March 1997 (2, leg. I. Leiskina), 21 June 1997 (1, leg. I. Leiskina), 22 June 1997 (1, leg. I. Leiskina), 25 August 1997 (1, leg. I. Leiskina), 3 May 1998 (1, leg. I. Leiskina), 5 July 1999 (1, leg. I. Leiskina), 10 August 1999 (1, leg. I. Leiskina), Sala, 22 August 2001 (1, leg. K. Ugeļska), Vandāni, 14 June 2009 (1, on Salix, leg. M. Balalaikins), Zasa, 19 June 2000 (1, leg. I. Leiskina); Jelgava d.: Zaļenieki, 10 July 1972 (3, M. Šternbergs); Krāslava d.: Andzeļi, 24 July 2008 (1, leg. R. Cibuļskis, U. Valainis), Šķeltiņi, 27 July 1989 (1, leg. A. Barševskis), 28 August 1992 (2, leg. A. Barševskis), 25 September 1992 (1, leg. A. Barševskis), 20 May 1995 (1, leg. A. Barševskis), 24 July 1996 (1, leg. A. Barševskis), 27 July 1996 (1, leg. A. Barševskis), Ūdrīši, 12 June 2005 (1, leg. M. Janovska), 30 August – 1 September 2007 (1, leg. M. Janovska), 30 May 2008 (4, leg. A. Pankjāns); Kuldīga d.: Rudbārži, 9 August 2004 (1, leg. A. Barševskis); Limbaži d.: Salacgrīva, 17 August 2008 (1, leg. A. Barševskis); Ludza d.: Gāgari env., 16 May 2009 (1, leg. A. Bukejs), Rundēni, 10 April 2008 (1, edge of a forest, leg. A. Bukejs); Preiļi d.: Jersika, Kurpnieki house, 16 May 2009 (1, leg. A. Barševskis), 9–12 July 2009 (1, leg. K. Barševska), Pelēči, 23 October 2010 (1, leg. K. Sokolovskis); Rēzekne d.: 28– 30 May 2010 (1, leg. M. Balalaikins); Rīga d.: Inčukalns, 12 September 1992 (2, leg. unknown), Inčupe, 14 June 1974 (1, leg. unknown), Jūrmala, Kauguri, 14 August
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1996 (1, leg. A. Barševskis), Sigulda, 27 May 1969 (1, leg. unknown), 6 June 1969 (1, leg. unknown) 17 June 1969 (2, leg. unknown), 25 June 1969 (2, leg. unknown), 30 June 1969 (1, meadow, leg. unknown); Talsi d.: Kaļķupe, 12 May 2009 (1, leg. A. Barševskis), 2 June 2009 (1, leg. R. Cibuļskis), June – 13 July 2009 (1, window trap, leg. A. Barševskis), Slītere, 4 May 1998 (1, Malayse trap, leg. N. Savenkovs), 5 September 2002 (1, leg. A. Barševskis), 10 July 2004 (3, leg. R. Cibuļskis), 10 August 2006 (1, leg. A. Barševskis), 1 September 2006 (4, leg. A. Pankjāns, E. Rudāns, U. Valainis); Valmiera d.: Briede, 21 August 2006 (1, leg. A. Pankjāns), Burtnieki, 14 April 1998 (1, rotting wood, leg. D. Grigorjeva), Mazsalaca, 27 August 2006 (1, leg. A. Barševskis); Ventspils d.: Moricsala NR, 25 June 2004 (2, leg. A. Barševskis, U. Valainis), 26 June 2004 (6, leg. A. Barševskis), 11 July 2005 (1, leg. A. Barševskis), 3–4 September 2009 (1, leg. I. Krivāne, I. Jahimoviča). Host plants: Centaurea, Cirsium (Compositae); Fragaria, Rosa (Rosaceae); Lotus (Fabaceae); Primula (Primulaceae); Rubus (Rosaceae); Salix (Salicaceae). Phenology: III (1), IV, V, VI, VII, VIII, IX, X, XI (3). General distribution: Europe, the Caucasus, Central Asia (W Kazakhstan), Siberia. Has been introduced to the USA and Canada. [SIE] Note: very common and widely distributed species in Latvia. Brachysomus Schönherr, 1823 B. echinatus (Bonsdorff, 1785) References: Fleischer 1829; Seidlitz 1872–1875, 1887–1891; Rathlef 1905; Barševskis 1993, 1997, 2002; Telnov et al. 1997; Telnov 2004. Examined material: 68 specimens: Daugavpils d.: Dviete, Zamečkas castle mound, 18 June 2010 (1, leg. M. Balalaikins, A. Bukejs), Ilgas, Silene NP, 30 May 1994 (1, leg. A. Barševskis), 31 May 1994 (1, leg. A. Barševskis), 5 June 1994 (1, leg. A. Barševskis), 11 June 1994 (1, leg. A. Barševskis), 18 June 1994 (1, leg. A. Barševskis), 29 May 1996 (3, leg. A. Barševskis), 31 May 1996 (1, leg. A. Barševskis), 6 June 1996 (1, leg. A. Barševskis), 5 July 1996 (1, leg. A. Barševskis), 5 June 1997 (2, leg. A. Barševskis), 26 June 1997 (1, leg. A. Barševskis), 25–30 June 1998 (1, leg. A. Barševskis), 6 June 2000 (2, leg. A. Barševskis), 6 May 2001 (1, leg. G. Lociks), 14 June 2001 (1, leg. G. Lociks), 18 May 2005 (2, leg. A. Barševskis), June 2005 (1, clearing, near a maple tree, leg. A. Barševskis), July 2005 (3, clearing, near maple, leg. A. Barševskis), 28 June – 3 July 2007 (1, leg. D. Pavļenko, E. Polāns), 9 June 2008 (1, leg. A. Barševskis), 27 May – 1 June 2009 (1, leg. R. Cibuļskis), 1 July 2009 (2, leg. R. Cibuļskis),
On Latvian Entiminae
Lielborne, 21 May 2008 (1, leg. A. Pankjāns), Līksna, 11 May 1997 (1, leg. R. Cibuļskis), Naujene, NP Daugavas loki (1, leg. A. Pankjāns, U. Valainis), Svente, NPT ‘Sasaļu mežs’, 14 May 2010 (1, leg. A. Barševskis), Višķi, 7 June 1990 (3, leg. A. Barševskis); Jēkabpils d.: Birži, 25 June 2010 (1, leg. M. Balalaikins), Cukuriņi, 9 July 2010 (1, leg. M. Balalaikins), Dunava, 23 May 1993 (2, leg. A. Barševskis), 24 June 1995 (1, leg. A. Barševskis), Rubene, 1 June 1997 (1, leg. I. Leiskina), 28 April 1999 (1, leg. I. Leiskina); Krāslava d.: Šķeltiņi, 1 May 1990 (2, leg. A. Barševskis), 1992 (3, leg. A. Barševskis), June 2002 (1, leg. A. Barševskis); Rīga d.: Jūrmala, Kūdra, 30 June 2008 (1, leg. A. Titovs), Olaine, 20 June 2007 (1, leg. J. Donis), Sigulda, 25 June 1969 (2, leg. unknown), 30 June 1969 (2, leg. unknown); Talsi d.: Kaļķupe, June – 13 July 2009 (2, window trap leg. A. Barševskis, U. Valainis); Tukums d.: Engure, Ķemeri NP, 5 May 2010 (1, sea coast, leg. M. Balalaikins); Ventspils d.: Moricsala NR, 25 June 2004 (1, leg. A. Barševskis, U. Valainis), 9 July 2004 (3, leg. A. Barševskis), 1 August 2009 (4, window traps, on Quercus robur, leg. A. Pankjāns). Host plants: Salix (Salicaceae); Symphoricarpus (Caprifoliaceae); Quercus (Fagaceae); Rosa (Rosaceae); Vicia (Fabaceae). Phenology: IV (3), V, VI, VII, VIII (1). General distribution: Europe, the Caucasus, Central Asia (W Kazakhstan), Siberia, the Russian Far East. [SIE] Note: common. Barypeithes Jacquelin du Val, 1854 B. pellucidus (Boheman, 1843) Barypeithes gabrieli Penecke, 1928 References: Lackschewitz & Mikutowicz 1939; Barševskis 1997, 2002; Telnov et al. 1997; Telnov 2004. Examined material: four specimens: Daugavpils d.: Daugavpils, 27 May 2005 (1, leg. A. Anitchenko), Šedere, Straumēni house, 1 June 2008 (2, leg. M. Janovska), Višķi, 24 June 1997 (1, leg. A. Barševskis). Host plants: phyllophagous on herbaceous plants. Rosaceae. Phenology: V, VI. General distribution: Europe. Has been introduced to North America. [EUR] Note: rare and insufficiently known species. Found in anthropogenic environments and natural habitats. B. trichopterus (G. des Cottes, 1863) Barypeithes violatus Seidlitz, 1868 References: Barševskis 1997, 2002; Telnov et al. 1997; Telnov 2004. Examined material: 142 specimens: Aizkraukle d.: Nereta, 16 June 2005 (3, leg. A. Barševskis); Bal-
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vi d.: Šķilbēni, 27 July 1992 (5, leg. A. Barševskis); Daugavpils d.: Ilgas, Silene NP, 18 June 1993 (1, leg. A. Barševskis), 5 July 1993 (5, leg. A. Barševskis), 12 July 1993 (4, leg. A. Barševskis), 6 June 1994 (1, leg. A. Barševskis), 4 July 1994 (1, leg. A. Barševskis), 15 June 1995 (1, leg. A. Barševskis), 26 June 1997 (1, leg. A. Barševskis), 25–30 June 1998 (1, leg. A. Barševskis), 6 June 2000 (1, leg. A. Barševskis), 6–15 June 2004 (1, leg. A. Barševskis), 1–5 July 2006 (12, leg. A. Barševskis), 28–29 June 2007 (1, leg. A. Barševskis), 1 July 2009 (3, leg. R. Cibuļskis), Pilskalne, 29 May 1993 (1, leg. A. Barševskis), Stropi, May 2004 (2, leg. A. Bukejs), Svente, 1–8 July 2011 (2, leg. A. Barševskis), Vabole, 29 July 1997 (1, leg. R. Cibuļskis); Dobele d.: Tērvete, SW Klūnas, 30 May – 20 June 2010 (18, barber trap, leg. M. Kalniņš); Jēkabpils d.: Dunava, 23 June 1993 (1, leg. A. Barševskis), 18 July 1993 (1, leg. A. Barševskis), 12 July 1994 (1, leg. A. Barševskis), 23 July 1994 (1, leg. A. Barševskis), 24 June 1995 (1, leg. A. Barševskis), 25–29 June 2006 (1, leg. K. Barševska), 10–19 June 2007 (3, leg. K. Barševska), 23–30 June 2007 (2, leg. K. Barševska), 1–8 June 2009 (2, leg. K. Barševska), 11– 22 June 2009 (1, leg. K. Barševska), Jēkabpils, 26 June 1997 (1, leg. I. Grīne), 7 June 1998 (1, leg. I. Grīne), Rubene, 1 June 1997 (1, leg. I. Leiskina), 21 June 1997 (1, leg. I. Leiskina), 10 July 1997 (1, leg. I. Leiskina), 7 June 1998 (3, leg. I. Leiskina), 5 July 1998 (2, leg. I. Leiskina), 18 July 1998 (1, leg. I. Leiskina), 30 June 1999 (1, leg. I. Leiskina), 21 July 1999 (1, leg. I. Leiskina), 15 June 2000 (1, leg. I. Leiskina), Tadenava, 11 July 2002 (1, leg. A. Barševskis), Zasa 15 July 1998 (1, leg. I. Leiskina); Krāslava d.: Ūdrīši, Zapoļniki house, 27–28 June 2009 (2, leg. M. Janovska), 2–4 July 2010 (9, leg. M. Janovska); Preiļi d.: Jersika, Kurpnieki house, 23–24 June 2006 (1, leg. A. Barševskis, K. Barševska), 29 May 2007 (2, leg. A. Barševskis, K. Barševska), 9–10 June 2007 (2, leg. A. Barševskis, K. Barševska), 22–25 June 2007 (13, leg. A. Barševskis), 10 July 2007 (1, leg. A. Barševskis, K. Barševska), 21 July 2007 (1, leg. A. Barševskis), 30 May 2009 (1, leg. K. Barševska), 22–24 June 2009 (1, leg. A. Barševskis), 28 June 2009 (7, leg. A. Barševskis), 3 July 2009 (5, leg. A. Barševskis); Talsi d.: Slītere NP, 27 June 2006 (3, leg. A. Barševskis, U. Valainis, A. Pankjāns); Ventspils d.: August 2009 (1, window traps, on Quercus robur, leg. A. Pankjāns). Host plants: phyllophagous on herbaceous plants. Phenology: V, VI, VII, VIII. General distribution: Europe. [EUR] Note: common. B. mollicomus (Ahrens, 1812) Examined material: 9 specimens: Daugavpils d.:
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Stropi, May 2004 (8, leg. A. Bukejs), Vabole, 29 July 1997 (1, leg. R. Cibuļskis). Host plants: Fragaria (Rosaceae), Hypericium (Guttiferae), Vicia (Fabaceae). Phenology: V, VII. General distribution: Europe. [EUR] Note: new species for the Latvian fauna. All specimens were recorded in sandy places at the edge of a mixed forest near the agrocenosis An illustrated key to Latvian species of the tribes Trachyphloeini and Sciaphilini 1(14) Antennal scrobes located partially or completely on the dorsal part of the rostrum. Ventral border of scrobes directed towards the middle of eyes or the ventral border of eyes (figs 12, 13, 19). Rostrum often with rostral wings (fig. 13A). Tribe Trachyphloeini. 2(3) Scrobes clearly visible in dorsal view, at least dorsal border reaching eyes in late ral view (fig. 12). Ventrites covered by shiny adherent scales. Body length 2.6–3.3 mm. Habitus (Fig. 9). ............................... Cathormiocerus aristatus 3(2) Scrobes invisible or visible only in the short apical part of the rostrum in dorsal view, not reaching eyes in lateral view (fig. 13). Ventrites covered by matt scales. 4(7) Apex of protibiae rounded (fig. 18). Genus Romualdius. 5(6) The maximum width of elytra is less than 1.5 width of pronotum. Elytra expand in the posterior part, rounded. Eyes slightly less spherical, and less protube rant. Rostral wings narrower. Body length 2.8–3.7 mm. Habitus (Fig. 2). ....................Romualdius bifoveolatus 6(5) The maximum width of elytra is greater than 1.5 width of pronotum. Elytra almost parallel-sided. Eyes more spherical, and more protuberant. Rostral wings broader. Body length 3.1–4.0 mm. Habitus (Fig. 1). ............................. Romualdius angustisetulus 7(4) Apex of protibiae distinctly three-lobed, forming medial and lateral spines (figs 16, 17). Genus Trachyphloeus. 8(11) Medial protuberance of the fore tibia is longer and stronger, external protuberance far from it, the interval between them distinctly sinuate (fig. 17). Forehead between the eyes is 2.5–3 times wider than the diameter of the eye. 9(10) Elytral setae short, broad and scale-like, semi-recumbent, about 1.5–2× longer than the width (fig. 24). Elytra at apex blunter and more abruptly rounded. Pronotum is more smoothly rounded at base, less clearly angled. Body length 2.3–2.6 mm. ............................Trachyphloeus digitalis 10(9) Elytral setae long, narrow and distinctly erect,
Balalaikins M.
about 4–5× longer than the width (fig. 23). At apex elytra are less blunt and not so abruptly rounded. Pronotum is less smoothly rounded at base, more clearly angled. Body length 2.3–2.9 mm. Habitus (Fig. 8). ..............................Trachyphloeus spinimanus 11(8) Medial protuberance of fore tibia is shorter, external protuberance close to it, the interval between them scarcely sinuate (fig. 16). Forehead between the eyes not more than 2.5 times wider than the diameter of the eye. 12(13) The dorsal part of rostrum from base enlarged anteriorly, tapered anteriorly from half of its length. Antennal scape S-shaped curved in basal part (fig. 15). Pronotum distinctly constricted behind anterior border with a distinct, longitudinal median groove. Body length 2.5–3.0 mm. Habitus (Fig. 3). ................................. Trachyphloeus scabricul 13(12) The dorsal part of rostrum in the basal third parallel-sided, in apical two thirds tapered anteriorly. Antennal scape feebly curved in the basal part (fig. 14). Pronotum feebly constricted behind anterior border with a shallow, unclear longitudinal median groove. Body length 2.5–3.0 mm. Habitus (Fig. 4). ................................... Trachyphloeus heymesi 1(14) Antennal scrobes located laterally. Ventral border of scrobes bent down below eyes (figs 20, 21, 22). Rostrum without rostral wings (fig. A). Tribe Sciaphilini. 15(20) Upper surface without scales. Genus Barypeithes. 16(17) In lateral view rostrum distinctly convex, eyes on the upper part of rostrum (fig. 21). Body length 2.8–3.8 mm. Habitus (fig. 5). Aedeagus (fig. 29). .................................Barypeithes mollicomus 17(16) In lateral view rostrum flat, eyes on the medial part of rostrum (fig. 22). 18(19) Erect setae on the posterior part of elytra longer than the width of intervals on the discal part of elytra. Setae on pronotum 3–4 times longer than the average width of the puncture on pronotum. Puncture of pronotum dense, discal part rarely smooth. Occasionally, there are populations with mainly small specimens. Body length 2.8–4.5 mm. Habitus (Fig. 10). Aedeagus (Fig. 28). ..................................Barypeithes pellucidus 19(18) Erect setae on the posterior part of elytra approximately of the same length as the width of intervals on the discal part of elytra. Setae on pronotum more than twice longer than the width of puncture. Puncture of pronotum a little scattered, the discal part almost always smooth. Body length 2.5–3.2 mm. Habitus (Fig. 6). Aedeagus (fig. 28). ................................Barypeithes trichopterus 20(15) Upper surface completely or almost completely covered by scales.
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On Latvian Entiminae
1
5
9
2
3
6
7
10
4
8
11
Figures 1–11. Habitus, dorsal view: 1 – Romualdius angustisetulus (after Borovec 2011); 2 – R. bifoveolatus, 3 – Trachyphloeus scabricul, 4 – T. heymesi, 5 –Barypeithes mollicomus, 6 – B. trichopterus, 7 – Brachysomus echinatus, 8 – Trachyphloeus spinimanus (after Borovec 2011); 9 – Cathormiocerus aristatus, 10 – Barypeithes pellucidus, 11 – Sciaphilus asperatus.
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Balalaikins M.
A
16
27
21(22) Fore femora with distinct teeth. Body length 4.2–5.5 mm. Habitus (Fig. 11). ... Sciaphilus asperatus 22(21) Fore femora without teeth. Body length 2.2– 3.0 mm. Habitus (Fig. 7). . .... Brachysomus echinatus.
17 18
13 14
19
20
21
22
12
15
23
25
24
26
Figures 12–27. 19–22 – rostrum, lateral view: 19 – Trachyphloeus bifoveolatus, 20 – Sciaphilus asperatus, 21 – Barypeithes mollicomus, 22 – B. pellucidus; 12–13, 25–27 – rostrum, dorsal view: 12 – Cathormiocerus aristatus, 13 – Romualdius bifoveolatus, 25 – Trachyphloeus heymesi, 26 – T. scabricul, 27 – Romualdius angustisetulus (after Borovec 2011); 16–18 fore tarsus, dorsal view: 16 – Trachyphloeus heymesi, 17 – T. spinimanus (after Dieckmann 1980), 18 – Romualdius bifoveolatus; 14–15 antennal scape: 14 – Trachyphloeus heymesi, 15 – T. scabricul; 23–24 elytral setae (after Palm 1996): 23 – Trachyphloeus spinimanus, 24 – T. digitalis; A – rostral wings.
28
29
30
Figures 28–30. Aedeagus, dorsal and lateral views: 28 – Barypeithes pellucidus, 29 – B. mollicomus, 30 – B. trichopterus.
Acknowledgements For the presented material, we are grateful to Kristīne Aksjuta, Arvīds Barševskis, Andris Bukejs, Raimonds Cibuļskis, Marina Janovska, Ainārs Pankjāns, Uldis Valainis (Daugavpils University Institute of Systematic Biology, LV), Katrīna Barševska and Iveta Leiskina (Daugavpils, LV), Aleksandrs Titovs (Rīga, LV), and students of Daugavpils University. Special thanks are due to Jānis Dreimanis and Nikolajs Savenkovs from the Natural History Museum of Latvia (Riga, Latvia), and Aina Karpa from the Institute of Biology, University of Latvia, for their permission to use the collections. We express our sincere thanks to Nikolai Yunakov (St. Petersburg, Russia) and Roman Borovec (Nechanice, Czech Republic) for constructive advice. Special thanks go to Andris Bukejs and Alexandr Ani shchenko for their valuable comments, and to Lech Borovec, for the presented photos of T. spinimanus and R. angustisetulus. The research was carried out within the framework of the project of the European Social Fund (No 2009/0206/1DP/1.1.1.2.0/09/APIA/VIAA/010).
References Alexandrovich, O. R., Lopatin, I. K., Pisanenko A. D., Tsinkevich, V. A. and Snitko, S. M. 1996. Catalogue of Coleoptera (Insecta) of Belarus. Minsk: Fund of Fundamental Investigations of the Republic of Belarus. [Александрович, О. Р., Лопатин, И. К., Писаненко, А. Д., Цинкевич, В. А., Снитко, С. М. 1996. Каталог жесткокрылых Беларуси. Минск: Фонд Фундаментальных исследований Республики Беларусь.] Alonso-Zarazaga, M. A. and Lyal, C. H. C. 1999. A world catalogue of families and genera of Curculionoidea (Insecta: Coleoptera) (Excepting Scolytidae and Platypodidae). Barcelona: Entomopraxis. Bajtenov, M. S. 1974. Weevils (Coleoptera: Attelabidae, Curculionidae) of Central Asia and Kazakhstan. Moscow: Nauka (in Russian). Balalaikins, M. (in press). On Latvian Entiminae (Coleoptera: Curculionidae): 1. genus Polydrusus Germar, 1817. Latvijas entomologs.
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doctoral dissertation. St. Petersburg, Russia: Zoological Institute of the Russian Academy of Sciences.
Apie dvi Latvijos straubliukų Entiminae (Coleoptera: Curculionidae) tribas: Trachyphloeini Lacordaire, 1863 ir Sciaphilini Sharp, 1891 M. Balalaikins Santrauka Pateikiami nauji faunistiniai duomenys apie aštuonias straubliukų rūšis, priklausančias Trachyphloeini ir
Balalaikins M.
Sciaphilini triboms. Iš viso buvo peržiūrėti 471 šių tribų vabalai. Bibliografinė informacija apie Latvijos faunai priklausančius šių grupių vabalus yra apibendrinta pirmą kartą. Pirmą kartą Latvijoje užregistruotos straubliukų rūšys Trachyphloeus heymesi Hubenthal, 1934 ir Barypeithes mollicomus (Ahrens, 1812). Viena rūšis Trachyphloeus spinimanus Germar, 1824 yra išbraukta iš Latvijos vabalų sąrašo. Pateikiamas 12 straubliukų rūšių anotuotas sąrašas ir iliustruotas Latvijos Trachyphloeini ir Sciaphilini tribų apibūdintojas. Received: 2 November 2011 Accepted: 8 December 2011
