Sexual dimorphism not obvious except for the longer ventral pubescence in male.ĭistribution.East, South and Southeast Asia, Indonesia, Australasia, Oceania. Prosternal process flat, sides subparallel or dilated, rarely narrowed. Elytra monochromatic or with elytral apices carmine apices separately arcuate, rarely separately subtruncate elytral pubescence fasciate or ornamental, rarely absent. Prehumerus carinal or filamentary rarely tubercular or obsolete. Pronotum with anteromedial, posteromedial and lateral impressions rarely without apparent impressions. Head usually impressed medially with curved sculpture at both sides eyes small or moderate. Medium (>5 mm) or large species (>10 mm), body shape cuneiform or parallel. ZIN Zoological Institute, Russian Academy of Sciences, St. USNM National Museum of Natural History, Washington D. NSMT National Science Museum (Natural History), Tokyo, Japan NMPC National Museum (Natural History), Prague, Czech Republic NHMB Naturhistorisches Museum, Basel, Switzerland MNHN Muséum national d’Histoire Naturelle, Paris, France IZAS Institute of Zoology, Academia Sinica, Beijing, China Lectotype designations were made with careful attention to previously accepted usage of a name.īMNH The Natural History Museum, London, United KingdomĮJCB Collection of E. Lectotype desig- nations herein are provided in order to preserve the stability of nomenclature by fixing the status of the specimen as the sole name-bearing type of a particular nominal taxon. Type data, type images and examined material published in Jendek and Grebennikov (2011) are omitted.Īccording to Article 74.7.3 of the ICZN (1999), lectotype designations after 1999 “ must contain an express statement of the taxonomic purpose of the designation”. The format of the taxonomic part, style of the new species descriptions and morphological terms follow those used in Jendek and Grebennikov (2011). The occurrence of the chronic Citrus pest Agrilus auriventris in Polynesia and Agrilus occipitalis in Micronesia is most likely an introduction. Most of the species from the Agrilus occipitalis species–group are distributed in South and Eastern Asia but some spread well beyond this area: Agrilus diversornatus Jendek, 2011 to Russian Far East Agrilus occipitalis and Agrilus biakanus Curletti, 2006 to Australasia. The state of species taxonomy has remained unrevised despite the fact that the two most serious pests in the citrus orchards Agrilus occipitalis (Eschscholtz, 1822) and Agrilus auriventris Saunders, 1873 belong to this group. With another sixteen taxa, including the eight new added in this work, the overall number of species of this group reaches twenty-three. The group was established and defined by Jendek and Grebennikov (2011) for seven species distributed in East Asia. This publication presents the first comprehensive revision of the Agrilus taxa of the occipitalis species–group. New lectotype designations: six lectotypes are designated: Agrilus celebicola Obenberger, 1924 Agrilus cupricauda Saunders, 1867 Agrilus korenskyi Obenberger, 1923 Agrilus kurandae Obenberger, 1923 Agrilus nirius Obenberger, 1924 Agrilus nitidus Kerremans, 1898. (synonym of occipitalis Eschscholtz, 1822). (synonym of auriventris Saunders, 1873) tebinganus Obenberger, 1924, syn. (synonym of occipitalis Eschscholtz, 1822) samoensis Blair, 1928, syn. reconfirmed (synonym of occipitalis Eschscholtz, 1822) oblatus Kerremans, 1900, syn. (synonym of occipitalis Eschscholtz, 1822) nirius Obenberger, 1924 syn. (synonym of occipitalis Eschscholtz, 1822) evinadus Gory & Laporte, 1839, syn. (synonym of occipitalis Eschscholtz, 1822) cupricauda Saunders, 1867 syn. (synonym of occipitalis Eschscholtz, 1822) connexus Kerremans, 1900, syn. Proposed synonyms: eight synonyms are proposed: celebicola Obenberger, 1924, syn. New species:eight new species are described: Agrilus mucidus sp. The following new taxonomic and nomenclatural acts are proposed. A character state matrix table for diagnostic characters is given for all taxa to facilitate their determination. Images of primary type specimens are provided. Habitus of all taxa and aedeagi of available males are pictured. The host plants, adult occurrence and altitude range is cited for most taxa. A complete list of references, type material, species examined and distribution is given for each taxon. Overall twenty-three taxa are included in the Agrilus occipitalis species–group. Two species from this group, Agrilus auriventris Saunders, 1873 and Agrilus occipitalis (Eschscholtz, 1822), are known as the serious pests of cultivated Citrus trees. The Agrilus occipitalis species–group is redefined and diagnosed.