Abstract A cladistic analysis of morphological characters of the subtribe Xyleborina (Curculionidae, Scolytinae) is presented. An examination of individual characters revealed little phylogenetic information in many characters currently used for delimiting genera. Phylogenetically stable characters were used for the evaluation of the contemporary generic concept. The following genera have been recovered as monophyletic: Cnestus, Dryocoetoides, Eccoptopterus, Xylosandrus, Schedlia, Sampsonius and Taurodemus. The following genera have been found to be polyphyletic: Amasa, Ambrosiodmus, Arixyleborus, Coptoborus, Coptodryas, Cryptoxyleborus, Cyclorhipidion, Euwallacea, Leptoxyleborus, Taphrodasus, Theoborus, Webbia, Xyleborinus and Xyleborus. The analysis permitted the resurrection of four genera: Anisandrus, Microperus, Pseudowebbia and Streptocranus. A number of new combinations at specific level are given: Anisandrus cornutus (Schaufuss, 1891), A. dispar (Fabricius, 1792), A. eggersi (Beeson, 1930), A. improbus (Sampson, 1913), A. longidens (Eggers, 1930), A. maiche Stark, 1936, A. obesus (LeConte, 1868), A. sayi Hopkins, 1915, A. apicalis (Blandford, 1894), A. hirtus (Hagedorn, 1904), Microperus myristicae (Schedl, 1939), M. eucalypticus (Schedl, 1938), M. huangi (Browne, 1983), M. intermedius (Eggers, 1923), M. kadoyamaensis (Murayama, 1934), Pseudowebbia armifer (Schedl, 1942), P. seriata Browne, 1963, P. squamatilis (Schedl, 1955), P. trepanicauda (Eggers, 1923), P. curvatus (Browne, 1986), Streptocranus bicolor Browne, 1949, S. bicuspis (Eggers, 1940), S. capucinulus (Schedl, 1942), S. forficatus (Schedl, 1957), S. fragilis Browne, 1949, S. longicauda Browne, 1960, S. longispinis Browne, 1986, S. mirabilis Schedl, 1939, S. usagaricus (Eggers, 1922), S. sexdentatus (Eggers, 1940). The characters most useful for generic‐level taxonomy of Xyleborina were identified and their states refined and illustrated. An accompanying illustrated multiple‐entry electronic key for the updated xyleborine classification has been published on‐line at www.scolytid.msu.edu.
Systematic Entomology – Wiley
Published: Jul 1, 2007
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