Beetles (Coleoptera) in Cones of Cycads (Cycadales) of the Northern Hemisphere: Diversity and Evolution
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University of Nebraska - Lincoln DigitalCommons@University of Nebraska - Lincoln Center for Systematic Entomology, Gainesville, Insecta Mundi Florida 7-31-2020 Beetles (Coleoptera) in cones of cycads (Cycadales) of the northern hemisphere: diversity and evolution William Tang Guang Xu Thomas Marler Jibankumar Singh Khuraijam Rita Singh See next page for additional authors Follow this and additional works at: https://digitalcommons.unl.edu/insectamundi Part of the Ecology and Evolutionary Biology Commons, and the Entomology Commons This Article is brought to you for free and open access by the Center for Systematic Entomology, Gainesville, Florida at DigitalCommons@University of Nebraska - Lincoln. It has been accepted for inclusion in Insecta Mundi by an authorized administrator of DigitalCommons@University of Nebraska - Lincoln. Authors William Tang, Guang Xu, Thomas Marler, Jibankumar Singh Khuraijam, Rita Singh, Anders J. Lindström, P. Radha, Stephen Rich, Khang Sinh Nguyen, and Paul E. Skelley July 31 2020 INSECTA 19 ######## A Journal of World Insect Systematics MUNDI 0781 Beetles (Coleoptera) in cones of cycads (Cycadales) of the northern hemisphere: diversity and evolution William Tang P.O. Box 266823, Weston, FL 33326, USA Guang Xu Department of Microbiology, University of Massachusetts Amherst MA 01003, USA Thomas Marler Western Pacific Tropical Research Center, College of Natural and Applied Sciences, University of Guam Mangilao, Guam 96923, USA Jibankumar Singh Khuraijam Botanic Garden, CSIR-National Botanical Research Institute Rana Pratap Marg, Lucknow - 226001, Uttar Pradesh, India Rita Singh University School of Environment Management, G.G.S. Indraprastha University Dwarka 16C, New Delhi - 110 075, India Anders J. Lindström Nong Nooch Tropical Botanical Garden 34/1 Moo 7 Na Jomtien, Sattahip, Chonburi 20250, Thailand P. Radha Siddha Clinical Research Unit (SCRU) (Central Council for Research in Siddha- CCRS, Ministry of Ayush,Govt of India) Govt Siddha Medical College, Palayamkottai, Tirunelveli Dt, Tamil Nadu-627002, India Stephen Rich Department of Microbiology, University of Massachusetts Amherst MA 01003, USA Khang Sinh Nguyen Institute of Ecology and Biological Resources, Vietnam Academy of Science and Technology 18 Hoang Quoc Viet, Cau Giay, Ha Noi, Vietnam Paul Skelley Florida State Collection of Arthropods Florida Department of Agriculture – DPI, P.O.Box 147100, Gainesville, FL 32614-7100, USA Date of issue: July 31, 2020 CENTER FOR SYSTEMATIC ENTOMOLOGY, INC., Gainesville, FL William Tang, Guang Xu, Thomas Marler, Jibankumar Singh Khuraijam, Rita Singh, Anders J. Lindström, P. Radha, Stephen Rich, Khang Sinh Nguyen, Paul Skelley Beetles (Coleoptera) in cones of cycads (Cycadales) of the northern hemisphere: diversity and evolution Insecta Mundi 0781: 1–19 ZooBank Registered: urn:lsid:zoobank.org:pub:F1B6BDED-9CCF-4356-945B-02662C461E1D Published in 2020 by Center for Systematic Entomology, Inc. P.O. Box 141874 Gainesville, FL 32614-1874 USA http://centerforsystematicentomology.org/ Insecta Mundi is a journal primarily devoted to insect systematics, but articles can be published on any non- marine arthropod. Topics considered for publication include systematics, taxonomy, nomenclature, checklists, faunal works, and natural history. Insecta Mundi will not consider works in the applied sciences (i.e. medical entomology, pest control research, etc.), and no longer publishes book reviews or editorials. 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Box 266823, Weston, FL 33326, USA [email protected] Guang Xu Department of Microbiology, University of Massachusetts Amherst MA 01003, USA [email protected] Thomas Marler Western Pacific Tropical Research Center, College of Natural and Applied Sciences, University of Guam Mangilao, Guam 96923, USA [email protected] Jibankumar Singh Khuraijam Botanic Garden, CSIR-National Botanical Research Institute Rana Pratap Marg, Lucknow - 226001, Uttar Pradesh, India [email protected] Rita Singh University School of Environment Management, G.G.S. Indraprastha University Dwarka 16C, New Delhi - 110 075, India [email protected] Anders J. Lindström Nong Nooch Tropical Botanical Garden 34/1 Moo 7 Na Jomtien, Sattahip, Chonburi 20250, Thailand [email protected] P. Radha Siddha Clinical Research Unit (SCRU) (Central Council for Research in Siddha- CCRS, Ministry of Ayush,Govt of India) Govt Siddha Medical College, Palayamkottai, Tirunelveli Dt, Tamil Nadu-627002, India [email protected] Stephen Rich Department of Microbiology, University of Massachusetts Amherst MA 01003, USA [email protected] Khang Sinh Nguyen Institute of Ecology and Biological Resources, Vietnam Academy of Science and Technology 18 Hoang Quoc Viet, Cau Giay, Ha Noi, Vietnam [email protected] Paul Skelley Florida State Collection of Arthropods Florida Department of Agriculture – DPI, P.O.Box 147100, Gainesville, FL 32614-7100, USA [email protected] 2 • INSECTA MUNDI 0781, July 2020 TANG ET AL. Abstract. Three groups of beetles inhabit cones of cycads (Cycadales) in the northern hemisphere and are be- lieved to be involved in their pollination. The primitive weevil subtribe Allocorynina (Coleoptera: Belidae) is restricted to the New World cycad genera Dioon Lindl. and Zamia L. One group of weevils (Curculionidae), found only in Cycas L., appears to be a relatively recent colonizer of northern hemisphere cycads. Members of the beetle subfamily Pharaxonothinae (Erotylidae) occur in all Asian and New World cycad genera. Phylogenetic trees of these beetles, based on DNA analysis and supported with morphological studies, are compared to patterns of con- tinental drift and cycad phylogenies. Laurasian origins are suggested for these beetle groups with high latitude dispersal for at least one of these groups during periods of global warm climates. Key words. Cycad pollination, Cucujoidea, Curculionoidea, symbiosis Introduction Field surveys in recent decades have identified three major lineages of beetles in the northern hemisphere that have life cycles intricately tied to the male cones of cycads (Tang 1987a; Vovides 1991; Norstog et al. 1992; Oberprieler 1995, 2004; Tang et al. 1999; Franz and Skelley 2008). Dissection of adults and/or larvae living in the cones of these cycads indicates that they eat cycad pollen or other cone tissues and may sequester cycad toxins (Norstog and Fawcett 1989; O’Brien and Tang 2015; Xu et al. 2015; Skelley et al. 2017; Tang et al. 2018b). Taxonomic reviews of some of these beetle lineages have recently been completed. One is a primitive weevil subtribe, Allocorynina (Belidae), found only in the New World, consisting of four genera: Notorhopalotria Tang and O’Brien, Parallocorynus Voss, Protocorynus O’Brien and Tang, and Rhopalotria