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Revision of the European species of Omphale Haliday (Hymenoptera, Chalcidoidea, Eulophidae).

ABSTRACT: The European species of Omphale Haliday (Eulophidae: Entedoninae) are revised. The revision includes 37 species, of which eleven are newly described and the remaining 26 species are redescribed. The species are classified into six species groups, with six unplaced species. All species are fully diagnosed and thoroughly illustrated. Identification keys are provided for females and males. Two new morphological features to aid classification and identification are introduced: male genitalia and wing interference patterns (WIPs). The former has been used successfully in the classification of New World Omphale and the latter is used for the first time in a taxonomic revision. Male genitalia in Omphale have considerable interspecific variation, an unusual trait among chalcidoid Hymenoptera, and are demonstrated to be useful for classification of species and species-groups, and they also possess the only autapomorphy for Omphale. WIPs are useful to help separate some species, but cannot be used to define either the genus or species groups. Distributional data are compiled for each species and suggest a pan-european distribution for most species. Gall-midges are the known hosts for 14 species, and the absence of host overlap between species suggests that host specialization is a driving force for speciation. Several Omphale species are known only from females, or have a strong female biased sex ratio, suggesting thelytokous development. Apart from the 37 species included in this revision, the status for nine additional species (names) in species group aetius remain unsolved. For nomenclatorial stability, a neotype is designated for Eulophus lugens Nees (= Omphale lugens (Nees)). Elachestus obscurus Förster and Derostenus sulciscuta Thomson are transferred from Holcopelte to Omphalecomb. n.Derostenus radialis Thomson and Achrysocharella americana Girault are synonymized with Omphale theana (Walker), and Omphale teresis Askew is synonymized with Omphale phruron (Walker), syn. n. The status of genus Pholema Graham is revised as it is removed from synonymy with Omphale and instead synonymized with Neochrysocharis Kurdjumov, syn. n., and the type species for Pholema, Pholema microstoma Graham, is transferred to Neochrysocharis, comb. n.Eugerium orbatum Szelényi, previously transferred to Omphale, is synonymized with Asecodes congruens (Nees), syn. n.

SUBMITTER: Hansson C

PROVIDER: S-EPMC3494065 | biostudies-literature | 2012

REPOSITORIES: biostudies-literature

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Revision of the European species of Omphale Haliday (Hymenoptera, Chalcidoidea, Eulophidae).

Hansson Christer C Shevtsova Ekaterina E

ZooKeys 20121025 232

The European species of Omphale Haliday (Eulophidae: Entedoninae) are revised. The revision includes 37 species, of which eleven are newly described and the remaining 26 species are redescribed. The species are classified into six species groups, with six unplaced species. All species are fully diagnosed and thoroughly illustrated. Identification keys are provided for females and males. Two new morphological features to aid classification and identification are introduced: male genitalia and win ...[more]

PMID: 23226702

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Project description:A total of 16 genera and 68 species of Chalcididae of Vietnam are taxonomically treated. Thirteen new species are described; the remaining 55 species are keyed, redescribed or provided with a diagnosis. Among these 37 species and eleven genera are recorded for the first time from Vietnam. The thirteen new species are: Antrocephalus neogalleriae Narendran & van Achterberg, sp. n.; Brachymeria neowiebesina Narendran & van Achterberg, sp. n., Brachymeria semirusula Narendran & van Achterberg, sp. n., Dirhinus neoclaviger Narendran & van Achterberg, sp. n., Epitranus narendrani van Achterberg, sp. n., Epitranus neonigriceps Narendran & van Achterberg, sp. n., Heydoniella vietnamensis Narendran & van Achterberg, sp. n., Megachalcis vietnamicus Narendran & van Achterberg, sp. n., Notaspidium vietnamicum Narendran & van Achterberg, sp. n., Oxycoryphe neotenax Narendran & van Achterberg, sp. n., Sthulapada neopadata Narendran & van Achterberg, sp. n., Sthulapada vietnamensis Narendran & van Achterberg, sp. n., and Tanycoryphus masii Narendran & van Achterberg, sp. n. The newly recorded genera are: Antrocephalus Kirby, 1883; Haltichella Spinola, 1811; Heydoniella Narendran, 2003; Hockeria Walker, 1834; Kriechbaumerella Dalla Torre, 1894; Notaspidium Dalla Torre, 1897; Oxycoryphe Kriechbaumer, 1894; Psilochalcis Kieffer, 1904; Sthulapada Narendran, 1989; Tanycorphus Cameron, 1905, and Trigonura Sichel, 1865. The following known species are recorded for the first time from Vietnam: Antrocephalus decipiens (Masi, 1929); Antrocephalus lugubris (Masi, 1932); Antrocephalus maculipennis (Cameron, 1905); Antrocephalus nasutus (Holmgren, 1869); Antrocephalus sepyra (Walker, 1846); Antrocephalus validicornis (Holmgren, 1868); Brachymeria alternipes (Walker, 1871); Brachymeria aurea (Girault, 1915); Brachymeria coxodentata Joseph, Narendran & Joy, 1972; Brachymeria euploeae (Westwood, 1837); Brachymeria hime Habu, 1960; Brachymeria jambolana Gahan, 1942; Brachymeria kamijoi Habu, 1960; Brachymeria lugubris (Walker, 1871); Brachymeria marmonti (Girault, 1924); Brachymeria minuta (Linnaeus, 1767); Brachymeria scutellocarinata Joseph, Narendran & Joy, 1972; Brachymeria shansiensis Habu, 1961; Brachymeria taiwana (Matsumura, 1910); Dirhinus anthracia Walker, 1846; Dirhinus claviger Bouček & Narendran, 1981; Epitranus albipennis Walker, 1874; Epitranus ater Bouček, 1982; Epitranus gauldi Bouček, 1982; Epitranus oxytelus Bouček, 1982; Epitranus ramnathi (Mani & Dubey, 1973); Haltichella delhensis Roy & Farooqi, 1984; Haltichella nipponensis Habu, 1960; Hockeria bangalorica Narendran, 1989; Hockeria guptai Narendran, 1989; Kriechbaumerella ayyari (Gahan, 1919); Kriechbaumerella cordigaster Roy & Farooqi, 1984; Kriechbaumerella destructor (Waterston, 1922); Kriechbaumerella nepalensis Narendran, 1989; Oxycoryphe scutellatus Narendran, 1989; Psilochalcis carinigena (Cameron, 1907), and Trigonura luzonensis Narendran, 1987. Brachymeria calopeplae Joseph, Narendran & Joy, 1972, is treated as a valid species.

Project description:Two of three species previously classified in Calosota Curtis (Hymenoptera: Eupelmidae) from the Neotropical region are transferred to Eupelminae. Calosota eneubulus (Walker) from Galapagos Islands is transferred to Eupelmus Dalman as Eupelmus (Eupelmus) eneubulus (Walker), comb. n., and Calosota silvai (Brèthes) from Chile is transferred to Brasema Cameron as Brasema silvaicomb. n.Calosota cecidobius (Kieffer) from Argentina is retained in Calosota, with reservation, as an unrecognized species. The species of Calosota from the New World excluding South America are revised. Eleven species are recognized, including the seven newly described species Calosota albipalpussp. n. (Costa Rica, Mexico, USA, Venezuela), Calosota bicoloratasp. n. (USA), Calosota elongatasp. n. (USA), Calosota longivenasp. n. (USA), Calosota panamaensissp. n. (Panama), Calosota setosasp. n. (Bahamas, Dominican Republic, USA), and Calosota speculifronssp. n. (Costa Rica, USA). The 11 regional species and the Palaearctic species Calosota vernalis Curtis are keyed and illustrated. Calosota vernalis is not known to occur in the New World but is included in the key and diagnosed because it has been intercepted in quarantine in Canada. Calosota pseudotsugae Burks is placed in synonymy under Calosota acron (Walker), syn. n.,and Calosota kentra Burks, Calosota montana Burks and Calosota septentrionalis Hedqvist are placed in synonymy under Calosota aestivalis Curtis syn. n.Calosota modesta Bolívar y Pieltain is removed from synonymy under Calosota viridis Masi, stat. rev., and Calosota viridis, Calosota matritensis Bolívar y Pieltain, and Calosota coerulea Nikol'skaya are placed in synonymy under Calosota metallica (Gahan), syn. n.Calosota grylli Erdös is confirmed as a separate species from Calosota metallica based on features of both sexes. It is suggested that Calosota ariasi Bolívar y Pieltain may be a synonym of Calosota aestivalis, Calosota bolivari Askew may be a synonym of Calosota agrili Nikol'skaya, Calosota dusmeti Bolívar y Pieltain may be a synonym of Calosota violascens Masi, and Calosota lixobia Erdös likely is not a junior synonym of Calosota obscura Ruschka, but formal nomenclatural changes are not proposed prior to a comprehensive Palaearctic revision. Previous interpretation of the mesoscutum in Calosota and Balcha Walker is also modified to include the presence of anteroadmedian lines in addition to notauli and parapsidal lines.

Dataset Information

Revision of the European species of Omphale Haliday (Hymenoptera, Chalcidoidea, Eulophidae).

Publications

Revision of the European species of Omphale Haliday (Hymenoptera, Chalcidoidea, Eulophidae).

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