Abstract
Morphological differences between the adults of overwintering and non-overwintering generations of the sawfly Pristiphora leucopus (Nematinae) are described and illustrated, as well as characters that distinguish P. leucopus from the closely similar P. armata. In the basal hymenopteran lineages (‘Symphyta’), seasonal polyphenism is so far only definitely recorded in the Sterictiphorinae (Argidae) and Nematinae (Tenthredinidae) of the Tenthredinoidea. Within the Nematinae, seasonal polyphenism had previously only been described in Nematus bergmanni. Seasonal polyphenism in the basal hymenopteran lineages is reviewed, and the potential pitfall that the existence of seasonal morphs represents for taxonomists working on ‘Symphyta’ is highlighted. Voltinism patterns in the basal hymenopteran lineages are also reviewed, to indicate the likelihood of further undetected examples of seasonal polyphenism in the families and subfamilies. With rare exceptions, multivoltinism occurs mainly in the Tenthredinoidea and is most frequent in the Argidae and Tenthredinidae (particularly Allantinae, Blennocampinae and Nematinae).
References
Adam, H. (1973) Beitrag zur Populationsdynamik einheimischer Blattwespen am Beispiel der Gattung Pristiphora Latreille, 1810. Beiträge zur Entomologie, 23(1–4), 219–239.
Anderson, K.E., Linksvayer, T.A. & Smith, C.R. (2008) The causes and consequences of genetic caste determination in ants (Hymenoptera: Formicidae). Myrmecological News, 11, 119–132.
Benson, R.B. (1951) Hymenoptera, Symphyta. Handbooks for the Identification of British Insects, 6(2a), 1–49.
Benson, R.B. (1952) Hymenoptera, Symphyta. Handbooks for the Identification of British Insects, 6(2b), 51–137.
Benson, R.B. (1958) Hymenoptera, Symphyta. Handbooks for the Identification of British Insects, 6 (2c), 139–252.
Benson, R.B. (1968) Hymenoptera from Turkey, Symphyta. Bulletin of the British Museum (Natural History). Entomology series, 22(4), 111–207.
Blank, S.M., Hara, H., Mikulás, J., Csóka, G., Ciornei, C., Constantineanu, R., Constantineanu, I., Roller, L., Altenhofer, E., Huflejt, T. & Vétek, G. (2010) Aproceros leucopoda (Hymenoptera, Argidae): an East Asian pest of elms (Ulmus spp.) invasive in Europe. European Journal of Entomology, 107, 357–367.
Charles, J. & Allan, D.J. (2000) Development of the willow sawfly, Nematus oligospilus, at different temperatures, and an estimation of voltinism throughout New Zealand. New Zealand Journal of Zoology, 27, 197–200.
Chevin, H. (1974) Notes sur les Hymenopteres Tenthredoides. Bulletin mensuel de la Société Linnéenne de Lyon, 43(8), 315–320.
Conde, O. (1934) Versuch einer Revision einiger mitteleuropäischer Aprosthema-Arten (Hymenoptera Tent.). Folia Zoologica et Hydrobiologica, 7(1), 20–30.
Denlinger, D.L. (1986) Dormancy in tropical insects. Annual Review of Entomology, 31, 239–264.
Dyar, H.G. (1895) On the larvae of some nematoid and other saw-flies from the northern Atlantic States. Transactions of the American Entomological Society, 22, 301–312.
Evans, J.D. & Wheeler, D.E. (2001) Gene expression and the evolution of insect polyphenisms. BioEssays, 23 (1), 62–68.
Evenhuis, N.L. (2012) Insect and Spider Collections of the World. Bishop Museum, Honolulu. Available from http://hbs.bishopmuseum.org/codens/ (accessed 9 February 2012)
Fitton, M.G. (1982) A catalogue and reclassification of the Ichneumonidae (Hymenoptera) described by C.G. Thomson. Bulletin of the British Museum (Natural History). Entomology series, 45(1), 1–119.
Fusco, G. & Minelli, A. (2010) Phenotypic plasticity in development and evolution: facts and concepts. Philosophical Transactions of the Royal Society, B, 365, 547–556.
Grearson, K.J. (2006) A sawfly, Pristiphora leucopus (Hellén), (Hymenoptera: Tenthredinidae) new to Britain. British Journal of Entomology and Natural History, 19, 1–5.
Harukawa, C. & Kondo, S. (1930) Studies on the rush sawfly. IV. Effect of Temperature upon the Cocoon Period of the Rush Sawfly, Tomostethus juncivorus Rohwer. Berichte des Ohara Instituts für Landwirtschaftliche Forschungen, 4(3), 295–313.
Hellén, W. (1948) Neue paläarktiche Nematinen (Hym., Tenthredinidae). Notulae Entomologicae, 31, 113–116.
Knerer, G. (1993) Life history diversity in sawflies. In: Wagner, M.R. & Raffa, K.F. (editors), Sawfly Life History Adaptations to Woody Plants. Academic Press, San Diego and London, pp. 33–59.
Lindqvist, E. (1941) Pteronidea curtispinis Ths., eine Blattwespe mit vier Generationen. Notulae Entomologicae, 21, 103–105.
Lindqvist, E. (1955) Über einige Pristiphora-Arten aus Fennoskandien (Hym., Tenthredinidae). Notulae Entomologicae, 35, 35–50.
Lindqvist, E. (1956) Können ei beiner [sic!] und derselben Blattwespenart (Hym., Tenthredinoidea) verschiedene Sägezähnungen vorkommen? Notulae Entomologicae, 36, 68–71.
Lindqvist, E. (1969) Blattwespen-Studien (Hymenoptera, Symphyta). Notulae Entomologicae, 49, 38–48.
O’Donnell, S. (1998) Reproductive caste determination in eusocial wasps (Hymenoptera: Vespidae). Annual Review of Entomology, 43, 323–346.
Pschorn-Walcher, H. (1982) Unterordnung Symphyta, Pflanzenwespen. In: Schwenke, W. (Ed): Die Forstschädlinge Europas, 4. Paul Parey, Hamburg und Berlin, pp. 4–196 & 232–234.
Pschorn-Walcher, H. & Altenhofer, E. (2000) Langjährige Larvenaufsammlungen und Zuchten von Pflanzenwespen (Hymenoptera, Symphyta) in Mitteleuropa. Linzer biologische Beiträge, 32(1), 273–327.
Pschorn-Walcher, H. & Altenhofer, E. (2006) Neuere Larvenaufsammlungen und Zuchten von mitteleuropäischen Pflanzenwespen (Hymenoptera, Symphyta). Linzer biologische Beiträge, 38 (2), 1609–1636.
Riley, T.J. (1980) Effects of long and short day photoperiods on the seasonal dimorphism of Anaea andria (Nymphalidae) from Central Missouri. Journal of the Lepidopterists’ Society, 34(4), 330–337.
Ruszczyk, A., Motta, P.C., Barros, R.L. & Araújo, A.M. (2004) Ecological correlates of polyphenism and gregarious roosting in the grass yellow butterfly Eurema elathea (Pieridae). Brazilian Journal of Biology, 64(1), 151–164.
Solomon, J.D. & Randall, W.K. (1978) Biology and damage of the willow shoot sawfly in willow and cottonwood. Annals of the Entomological Society of America, 71(4), 654–657.
Sáringer, G. (1964) Die Rolle der Photoperiode in der Auslösung der Diapause der Rübenblattwespe (Athalia rosae L.). Annales Instituti Protectiones Plantarum, 9, 107–132.
Sáringer, G. (1988) Food consumption by Athalia glabricollis Thomson (Hym., Tenthredinidae) larvae in various photoperiods. Zeitschrift für angewandte Entomologie, 106(5), 473–482.
Scheibelreiter, G.K. (1973) Die Tenthrediniden der Rose (Rosa spec.). Zeitschrift für angewandte Entomologie, 72(3), 225–259.
Simpson, S.J., Sword, G.A. & Lo, N. (2011) Polyphenism in Insects. Current Biology, 21(18), 738–749.
Smith, D.R. (2008) The abbotii and erythrogaster groups of Nematus Panzer (Hymenoptera: Tenthredinidae) in North America. Proceedings of the entomological Society of Washington, 110(3), 647–667.
Standfuss, K., Liston, A.D, Standfuss, L. & Jansen, E. (2010) Sawflies (Hymenoptera, Symphyta) of the southern Magnisía Peninsula, Thessaly, Greece. Entomofauna. Zeitschrift für Entomologie, 31(13), 153–168.
Stone, G.N., Schönrogge, K., Atkinson, R.J., Bellido, D. & Pujade-Villar, J. (2002) The Population Biology of Oak Gall Wasps (Hymenoptera: Cynipidae). Annual Review of Entomology, 47, 633–668.
Taeger, A., Altenhofer, E., Blank, S. M., Jansen, E., Kraus, M., Pschorn-Walcher, H. & Ritzau, C. (1998) Kommentare zur Biologie, Verbreitung und Gefährdung der Pflanzenwespen Deutschlands (Hymenoptera, Symphyta). In: Taeger, A.; Blank, S. M.(eds): Pflanzenwespen Deutschlands (Hymenoptera, Symphyta). Kommentierte Bestandsaufnahme. Goecke & Evers, Keltern, pp. 49–135.
Taeger, A., Blank, S.M. & Liston, A.D. (2006) European Sawflies (Hymenoptera: Symphyta) - A Species Checklist for the Countries. In: Blank, S.M., Schmidt, S. & Taeger, A. (editors): Recent Sawfly Research: Synthesis and Prospects. Goecke & Evers, Keltern, pp. 399–504.
Taeger, A., Blank, S.M. & Liston, A.D. (2010) World Catalog of Symphyta (Hymenoptera). Zootaxa, 2580, 1–1064.
Tsalbukov, P. (1964) A study of the rose-leaf sawfly. Rastitelna Zaschtschita, 12, 12–15.
Tsuruta, T., Matsuka, M. & Sasaki, M. (1989) Temperature as a causative factor in the seasonal colour dimorphism of Apis cerana japonica workers. Apidologie, 20, 149–155.
Viitasaari, M. (2002) The Suborder Symphyta of the Hymenoptera. In: Viitasaari, M. (editor) Sawflies (Hymenoptera, Symphyta) I. Tremex Press Ltd., Helsinki, pp. 11–174.
Vikberg, V. (2004) Seasonal head dimorphism and taxonomy of some European species of Aprosthema (Hymenoptera: Symphyta: Argidae). Beiträge zur Entomologie, 54(1), 107–125.
Wu, X., Xin, H. & Pan, C. (2007) Biological characteristics and control of the sawfly, Nematus ruyanus. Plant Protection, 33(1), 102–105.
Zhelochovtsev, A.N. & Zinovjev, A.G. (1995) Spisok pilil'shhikov i rogohvostov (Hymenoptera, Symphyta) fauny Rossii i sopredel'nyh territorij. I. [A list of the sawflies and horntails (Hymenoptera, Symphyta) of the fauna of Russia and adjacent territories. I.] (In Russian, abstract in English). Entomologicheskoe obozrenie, 74(2), 395–415.
Zhelokhovtsev, A.N. (1988) Suborder Symphyta (Chalastogastra). In: Tobias, V.I. & Zinovjev, A.G. (eds): Keys to the insects of the European part of the USSR III, part VI: pp. 3–237 Symphyta. Nauka Publishers, Leningrad. (In Russian; translated into English; 1994 Oxonian Press Pvt. Ltd., New Delhi. 432 pp.)