查看更多>>摘要：Tricrania LeConte is revised. One new synonymy is proposed: T. murrayi LeConte 1860 = T. stansburii (Haldeman) 1852, syn. nov. More than 1000 specimens of T. sanguinipennis (Say) and over 1100 specimens of T. stansburii were assessed to provide accurate host data, phenological periods, and distributional limits for each species. Descriptions of adults and 1st instar larvae, diagnostic characters, and identification keys also are provided. A 565-bp fragment of mtDNA from the mitochondrial cytochrome oxidase 1 (COI) gene, i.e. the DNA barcode region, is provided as an additional source for identification. A taxonomic history of the genus and inclusive species is given, as well as remarks on the placement of Tricrania in Nemognathinae.
查看更多>>摘要：The final instar larvae of Acanthagrion gracile and A. lancea are described and illustrated based on reared specimens from Rio de Janeiro and Espirito Santo States, Brazil, being compared with the other known larvae of this genus. The Neotropical genus Acanthagrion Selys is composed by 39 known species, distributed from South-Central United States (Texas) to Central Argentina (von Ellenrieder & Lozano 2008; Garrison et al. 2010). In Brazil, 22 of these species are recorded (Lencioni 2006). At present, the final larval instars of nine species have been described: A. adustum Williamson, A. aepiolum Tennessen, A. apicale Selys, A. ascendens Calvert, A. fluviatile De Marmels, A. hildegarda Gloger, A. indefensum Williamson, A. quadratum Selys and A viduaSelys (Geijskes 1941, 1943; De Marmels 1990, 1992, 2007; Muzon et al. 2001; Lozano et al. 2007; Novelo-Gutierrez 2009).
查看更多>>摘要：Calisius balticus, previously known from the Middle-Late Eocene Baltic amber, is recorded for the first time in the Lowermost Eocene French amber. It is the second case of an insect species present in both these two ambers, representing a morphological stasis of ca. 10 Ma. It is the oldest record of the genus Calisius. Aradus andancensis n. sp. in Upper Miocene sedimentary deposit from France is also described.
查看更多>>摘要：Coeliccia southwelli sp. nov. is described from Mount Dulit, Miri and Kapit Divisions, Sarawak, Malaysian Borneo. It belongs to the borneensis'-group of species, and is the sixth species from this group to be described from Borneo. New material of other borneensis-group species is put on record. The borneensis-growp of species from the platycnemidid calicnemiine genus Coeliccia Kirby, 1890 was recently treated in detail (Dow 2010); the reader is referred to this publication for a characterisation ofthe group. However some issues remained unresolved because of insufficient material. In particular a female specimen from the Natural History Museum, London (BMNH) could not be assigned to any named species.
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