Hymenoptera: Vespidae; Vespinae, Polistinae
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Natural History Bulletin of Ibaraki University 5: 1–22, 9 February 2001 Taxonomic notes on types of the social wasp tribe Ropalidiini (Insecta: Hymenoptera; Vespidae, Polistinae) housed mainly in the Muséum d’Histoire Naturelle, Genève Jun-ichi Kojima Natural History Laboratory, Faculty of Science, Ibaraki University, Mito, 310-8512 Japan Abstract Notes on types of the social wasp tribe Ropalidiini housed mainly in the Muséum d’Histoire Naturelle, Genève are provided. Lectotypes of the following species are designated: Icaria aethiopica du Buysson, 1906, I. antennata de Saussure, 1890, I. cohni du Buysson, 1909, I. gregaria de Saussure, 1854, I. guttatipennis de Saussure, 1853, Ropalidia montana Carl, 1934, Icaria plebeja de Saussure, 1863, non 1862, and Belonogaster pictus de Saussure, 1900. A new species in Belonogaster is described based on the specimens in von Schulthess’ collection in the Eidgennössische Technische Hochshule, Zürich. Nomenclatural changes include: synonymy of Ropalidia variegata interrupta van der Vecht, 1941, under R. gregaria (de Saussure), NEW SYNONYMY; application of R. impetuosa (Smith, 1860) to “R. gregaria” of authors, REVISED STATUS, and synonymies of Icaria spilocephala Cameron, 1906, I. cohni du Buysson, 1909, Ropalidia gregaria inquieta Cheesman, 1952, and R. gregaria var. tolerans Cheesman, 1952, under R. impetuosa, REVISED SYNONYMIES; synonymy of Polistes bioculata Fabricius, 1804, under Ropalidia fasciata (Fabricius, 1804), NEW SYNONYMY; synonymy of Icaria plebeja de Saussure, 1863, non 1862, with Ropalidia plebeiana Richards, 1978, NEW SYNONYMY; synonymy of Icaria duchaussoyi Gribodo, 1896, under Ropalidia clavata (de Saussure, 1853), NEW SYNONYMY; treating Belonogaster malagassa de Saussure, 1900 and B. pomicolor de Saussure, 1900 as valid species, REVISED STATUS; and replacement of B. pictus de Saussure, 1900, non Kohl, 1894, with B. confusa NEW REPLACEMENT NAME. Key words Hymenoptera, Vespidae, Polistinae, Ropalidiini, lectotype designation, new species Introduction Richards (1982) did not specify any paralectotypes and even failed to designate the “lectotype” for Belono- In Kojima and Carpenter’s (1997) recent catalog of gaster brevipetiolata de Saussure, 1890, and did not species in the social wasp tribe Ropalidiini that includes label the “lectotype” of B. apicalis de Saussure, 1900 the four Old World polistine genera (Ropalidia Guérin- (see also Carpenter, 1999). Types of Ropalidia (= Méneville, 1831, Parapolybia de Saussure, 1854, Icaria de Saussure, 1853) in the MNH are as yet poorly Belonogaster de Saussure, 1854, and Polybioides du studied (Kojima et al., 1998; Carpenter, 1999). Buysson, 1913), the Muséum d’Histoire Naturelle, During my two-month stay in the MHN in 1999, I Genève (abbreviated as “MHN”) is listed as one of the compiled a list of ropalidiine types in the museum. In major institutions that house primary types, including the course of this research I located syntypes of four syntypes, of ropalidiine species group taxa; 33 species species, for which the depository has long been (23 in Ropalidia, ten in Belonogaster). Most of them unrecognized, and thus exact taxonomic status of these (31 species) were described by de Saussure (1853-58, taxa has been in question. As mentioned in “Methods”, 1890, 1900), whose collection was deposited in the in the course of the present study I had chances to MHN (Bedot, 1906; Horn et al., 1990). examine specimens in the Eidgennössische Technische Richards (1982) and Hensen and Blommers (1987) Hochshule, Zürich (“ETH”) and the Muséum National studied most of the Belonogaster types in the MHN, d’Histoire Naturelle, Paris (“MNHN”). The present and designated the lectotypes for six and three species, paper primarily aims to designate the lectotypes for the respectively. However, they provided neither details of taxa for which I examined most of syntypes, in order to label data nor characteristics that allow us to easily define the concept of each taxon. Detailed taxonomic recognize the name-bearing types (holotype and/or notes are also provided for the taxa for which I reached lectotype); such information should be provided when different taxonomic opinions from those of previous designating the name-bearing types according to authors. A new species in the genus Belonogaster is Recommendation 74C in the International Code of described based on specimens in the ETH. Although Zoological Nomenclature (International Commission on the MHN and MNHN house types of most of the Zoological Nomenclature, 2000). Furthermore, Malagasy species of Ropalidia, they will be treated in a 2 J. Kojima separate paper on the taxonomic revision of Malagasy relationships among species for Belonogaster. For each fauna of Ropalidia. species group taxon, the pagination of the original description is cited, followed by the sex of the Methods specimen(s) if stated. The locality given in the original description is then quoted. When label data are quoted, It is well known that H. de Saussure made his a slash (/) denotes the beginning of a new line on the taxonomic work in a close relationship with the label. Some specimens in the MHN have labels Museum Paris (= MNHN), and in the later stage of his specific to the museum; each label consists of two research life R. du Buysson took care of a large part of columns by three rows: the datum in the upper left cell de Saussure’s collection of social wasps. Consequent indicates the specimen number (or code); upper right results were that not a few specimens on which de cell is for the locality in a lower category (such as town, Saussure’s descriptions were based were retained by de etc.) if available; middle left cell is for the year when Saussure and/or exchanged between the MNHN and de the specimen was housed in the museum; middle right Saussure. In the present paper, the specimens in the cell shows the locality in a higher category (such as MNHN are also noted for some species described by de country or region); and the bottom row (two cells) gives Saussure and du Buysson. Another person who had a the collector (or donator) of the specimen. The five close relationship with de Saussure as well as the MHN data given on the MHN label are separated by colons was A. von Schulthess, whose collection is now in the (:). “MP” is an abbreviation used here for “MUSEUM ETH. A part of de Saussure’s material is in the ETH PARIS”, and the MNHN (co-) type labels are indicated (Carpenter, 1999) and the specimens in this institute are with “MP (co-) type label”. My comments and also referred to. In addition to these three collections, additions to the label data as well as citations are given the following museums and/or institutions are referred in brackets. to: In the descriptions of species several morphometric Australian National Insect Collection, CSIRO, characters are used. The parts measured are defined as Canberra (ANIC); follows: width of clypeus was measured as a distance Museo di Zoologia Sistematica, Università di between the uppermost points where clypeus touches Torino, Torino (MIZT; the specimens in this eyes; height of clypeus was measured as a distance museum were not seen); from the bottom of dorsal emargination to the apex; Museo Civico di Storia Naturale, “Giacomo Doria”, distance between inner eye margins at the vertex refers Genova (MCGD; not seen); to the distance between them at the level of the anterior Museo Civico di Storia Naturale, Venice (MCSN; ocellus in frontal view of head, and distance between not seen); inner eye margins at clypeus refers to the distance at the Museum of Comparative Zoology, Harvard Uni- level where inner eye margins approach each other versity, Cambridge (MCZ); most closely; widths of eye and gena were measured as Nationaal Natuurhistorisch Museum, Leiden the maximum for each in a strictly lateral view of the (NNM); head; length of the first metasomal tergum was The Natural History Museum, London (BMNH); measured in profile as a distance between the posterior Naturhistorika Riksmuseet, Stockholm (NR; not end of the basal slit for the reception of the suspensory seen); ligament of the mesosoma and the posterodorsal end of Zoologisches Museum der Humboldt-Universität, the tergum; widths of the first and second metasomal Berlin (ZMH; not seen); segments refer to their maximum widths in dorsal view. Zoologisches Sammlung München (ZSM; not seen); In the genus Ropalidia, the female antenna has 12 Zoologische Sammlung, Naturhistorisches Museum, articles and the male antenna has 13 articles as in the all Wien (ZSNM; not seen). the other polistine wasps except for Belonogaster and Judging from the handwritings a large part of Polybioides, in which the female antenna has 11 articles determination labels of de Saussure’s types not only in and the male antenna 12. the MNHN but also in the MHN was prepared by du Buysson. The specimens of social wasps (also other aculeates) in the MHN were rearranged in the current Genus Ropalidia Guérin-Méneville, 1831 style during the period while J. Carl and/or C. Ferrière The type materials in the MHN here treated are all were curating the hymenopteran collection in the in the box “Vespidae 18” unless noted. museum; the original arrangement by de Saussure seemed to be retained for most specimens originating aethiopica (du Buysson) from de Saussure’s collection. Icaria aethiopica du Buysson, 1906: 110, female, male – Species group taxa are listed alphabetically in “Ethiopie méridionale: Dirouhoria”. Ropalidia, while according to the arguments on the Taxonomic notes on Ropalidiini 3 One male and one female in the MNHN that are labeled with the MP type label in addition to “MP/ÉTHIOPIE MÉRID/DIROUHORIA/Maurice de Rothschild/1905” and “Icaria/aethiopica/♂ type Buyss. [or type ♀ Buyss.]/R. DU BUYSSON det. 1909.” are from the type series. They obviously belong to the same species; the male is here designated as the lectotype, and the female as a paralectotype. The structure of the paralectotype female is similar to the types of Icaria guttatipennis de Saussure, 1853, and those of I.