The Huitrera Formation is a sequence of volcanic deposits that outcrops in the northwestern region Patagonia. Several paleofloras have been recognized this (or coeval) units, classical localities named Pichileufu, Confluencia, Pampa de Jones and Laguna del Hunco. These works, focused mostly on angiosperm conifer content unit, allowed recognition diverse array taxa. Nevertheless, ferns remain un...

There are errors in the Funding section. The correct funding information is as follows: This study was supported by FAPESP (doctoral grant 2006/59916-0); CCSD-Missouri Botanical Garden (Elizabeth E. Bascom Fellowships for Latin American Female Botanists); a FAPESP-NSF-NASA Biota/Dimensions of Biodiversity Grant (FAPESP 12/50260-6); and a CNPq Pq-1C Grant to LGL. The funders had no role in study...

For species discrimination, DNA relatedness, nuclear DNA (nDNA) base compositions and internal transcribed spacer (ITS) regions were studied in strains of the 'washingtonensis group' consisting of the type strains of Tilletiopsis washingtonensis, Tilletiopsis cremea and Tilletiopsis lilacina as wells as nine strains previously identified as any one of the three species. T. washingtonensis is th...

The Staphylinini rove beetle genus Euryporus Erichson from the subtribe Quediina is restricted to include only three species from the Western Palearctic region: Euryporus picipes (Paykull, 1800), Euryporus aeneiventris (Lucas, 1846), and Euryporus princeps Wollaston, 1864. Euryporus argentatus Fauvel, 1881, Euryporus warisensis Last, 1987 and Euryporus multicavus Last, 1980, which do not even b...

The O. avara group of Oecetis is formally defined to include 4 described species, O. avara (Banks), O. disjuncta (Banks), O. elata Denning & Sykora, and O. metlacenis Bueno-Soria, and 15 new species. Oecetis marquesi Bueno-Soria, previously considered a member of the O. avara group, is treated as incertae sedis to species group, but is also redescribed and treated in the current work. New speci...

The phylogeny of the insect infraorder Bibionomorpha (Diptera) is reconstructed based on the combined analysis of three nuclear (18S, 28S, CAD) and three mitochondrial (12S, 16S, COI) gene markers. All the analyses strongly support the monophyly of Bibionomorpha in both the narrow (sensu stricto) and the broader (sensu lato) concepts. The major lineages of Bibionomorpha sensu lato (Sciaroidea, ...

The Hyphessobrycon are allocated in the incertae sedis group of the Characidae family, one of the genera with more species of the group. The chromosomes of some species of Hyphessobrycon are known, and the diploid number most common for genus is 2n = 50 chromosomes. The aims of this study were to examine the karyotype macrostructure in the Hyphessobryconeques Steindachner, 1882, and show a new ...

The Indian fauna of the genus Microplitis Foerster, 1862 is revised. An illustrated key to eight species including the description of one new species, M. murkyi sp. nov., is provided. Six previously described species, namely: M. ajmerensis Rao & Kurian, M. demolitor Wilkinson, M. indicus Marsh, M. manilae Ashmead, M. prodeniae Rao & Kurian, and M. spodopterae Rao & Kurian are elaborated with ta...

Longior zayasi Coy, García & Alvarez, 1993 is established as incertae sedis because the males (declared as the holotype) are inconsistent with the generic diagnosis, particularly in relation to the morphology of the head and tail. Thus, the females of Longior zayasi species (which agree with the generic diagnosis) are renamed and re-described as Longior longior Morffe & García sp. n. We also de...

At present, 45 Somoleptus species are known from the Neotropical region. Among these, 28 newly described here, whereas 18 were in past. The new are: S. admirabilis spec. nov., andersoni ashei beniensis brevipennis breviusculus brooksi brunneus curtipennis curtulus elongatulus gigas grandiconus humicola longiceps loretensis maximus melanarius mexicanus montanus oculatus ovatus pecki peruanus rec...