E-mail: trond.andersen@zmb.uib.no].Saether, Ole A.Andersen, Trond [Author, Reprint Author
19页
查看更多>>摘要：The resurrection of trans-oceanic dispersal is the most striking aspect of a major shift in historical biogeography toward a more even balance between vicariance and dispersal explanations. Molecular dating of lineage divergences favors oceanic dispersal over tectonic vicariance as an explanation for disjunct distributions in a wide variety of taxa. Although many oceanic islands harbor a disproportionately high biodiversity and number of endemic taxa, the chironomid fauna of the South Atlantic islands of Gough, Nightingale and Tristan da Cunha apparently consists of 6 species only: Telmatogeton goughi sp. n. (described as male and female), Limnophyes minimus (Meigen), Smittia sp. (described as female), Thalassosmittia christinae sp. n. (described as female), Clunio jonesi sp. n. (described as male) and Allocladius lusciniolus Saether et Andersen (described as female). Except for the marine T. goughi and C. jonesi the other species are parthenogenetic. Limnophyes minimus and A. lusciniolus dominate the chironomid fauna. Telmatogeton goughi is close to T. sanctipauli (Schiner). Thalassosmittia christinae differs from T. thalassophila (Bequaert et Goetghebuer) by having hairy eyes and antenna with subapical seta. Clunio jonesi differs from C. africanus and C. gerlachi by having ultimate flagellomere as long as the 4 preceding segments and gonostylus with only 1-2 apical spines. Allocladius lusciniolus differs from other known females of the genus by having 1-5 setae apically on M1+2.
查看更多>>摘要：The larva and pupa of Homophileurus tricuspis Prell (Coleoptera: Scarabaeidae: Dynastinae: Phileurini) are described for the first time based on specimens from Colombia. A key to the known third-stage larvae of New World Phileurini species is provided. Notes on the natural history and distribution of H. tricuspis in Colombia are also included. Homophileurus Kolbe consists of nine species.
查看更多>>摘要：The pupa and fourth-instar larva of Culex (Culex) lahillei Bachmann & Casal are described and illustrated for the first time and the adults redescribed. Information is provided on the distribution, bionomics and taxonomy of the species.
Mendes, Humberto F.Andersen, Trond [Author, Reprint AuthorE-mail: trond.andersen@zmb.uib.no]Hagenlund, Linn K. [Author...
13页
查看更多>>摘要：Antillocladius anandae sp. n., A. itatiaia sp. n. and Litocladius neusae sp. n. from Brazil, and L. chavarriai sp. n. from Costa Rica are described and illustrated as males. In addition, new records of A. antecalvus Saether, A. arcuatus Saether, A. brazuca Mendes et Andersen, A. folius Mendes, Andersen et Saether, A. musci Mendes, Andersen et Saether and Litocladius floripa Mendes et Andersen are given. Including the new species described below Antillocladius Saether now comprises 27 species from the Neotropical, Nearctic and Oriental zoogeographical regions, while Litocladius Mendes, Andersen et Saether comprises 5 species from the Neotropical region.
查看更多>>摘要：The megophthalmine leafhopper genus Onukigallia Ishihara is revised. Five species of this genus occurring in the Palearctic and Oriental Regions are recognized, including one new species, Onukigallia matsumurai sp. nov., described from Yunnan Prov., China. Four other known species: O. arisana (Matsumura), O. fanjingensis Zhang & Li, O. onukii (Matsumura) and O. tenuis (Matsumura) are also diagnosed. A key to species of Onukigallia based on males is provided.
查看更多>>摘要：Itatingamyia (Muscidae: Diptera) was known from a single species and eight specimens. This paper describes a new species, Itatingamyia couriae sp. nov. (Santa Teresa, Espirito Santo, Brazil), and provides an identification key for the two species of Itatingamyia. Itatingamyia Albuquerque, 1979 is a Neotropical genus of the Muscidae that up to now had only one described species, Itatingamyia bivittata Albuquerque, 1979.
查看更多>>摘要：Perigomphus Belle, 1972, was described as a subgenus of Diaphlebia Selys, 1854, based on a single species, P. pallidistylus Belle (1972) from Costa Rica. Belle (1972) listed a combination of features as the basis for his subgenus: pterostigma of hindwing 1/7 hind wing length, anal triangle of male hind wing 2-celled, triangles without a crossvein, top of head round and without a row of setae, and branches of epiproct widely divaricate. In the species description he stated that the longest spines onthe hind femora of the male were nearly the diameter of the femur. The status of Perigomphus and a related taxon, Desmogomphus Williamson, 1920, which was also included as a subgenus of Diaphlebia, remained poorly known for nearly two decades. Belle (1988), based on information from Dr. Minter J. Westfall, Jr., recognized Perigomphus and Desmogomphus as genera distinct from Diaphlebia. Westfall (1989) described the larvae of Perigomphus pallidistylus and Desmogomphus paucinervis and the adult female ofP. pallidistylus. He had reared these species in 1979 and came to the conclusion that both subgenera deserved to be elevated to generic rank. Later, Belle (1996) placed Perigomphus in the subfamily Octogomphinae, whereas Desmogomphus and Diaphlebia wereplaced in the Gomphoidinae. Perigomphus pallidistylus is a rarely seen Neotropical species that ranges from northern Costa Rica to southern Panama (Garrison et al. 2006). Belle (1996) speculated that the genus "possibly occurs" in Colombia and Ecuador. I discovered a second species of Perigomphus in the Amazon headwaters of central Ecuador, partly verifying Belle's prediction; the new species fits the generic characters for Perigomphus given in the key to Gomphidae in Garrison et al. (2006).
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