ABSTRACT Based on a bibliographic review of the literature, a consensus of international experts has been carried out on the use of vitamins B1, B6, B12, in their deficiencies, and in the peripheral neuropathy that may be associated with them, to optimize the management of these conditions. Several questions considered important and worthy of being addressed and clarified were raised, retaining nine of them for further discussion to achieve consensus. Forty one recommendations on the management of these conditions have been proposed, with unanimity of the participants in the consensus. This has been an attempt to clarify controversial points, assisting the clinician's attitude in current medical practice.

RESUMEN A partir de una revisión bibliográfica de la literatura se ha planeado y desarrollado un consenso de expertos internacionales sobre la utilización de las vitaminas B1, B6, B12 en sus déficits y en la neuropatía periférica que puede estar asociada a la misma, como tema que precia de esa aproximación aclaratoria para optimizar su manejo. Se plantearon varias cuestiones de discusión que se consideraron importantes y dignas de ser abordadas y aclaradas, conservando nueve de ellas para su discusión ulterior buscando el consenso en tres rondas consecutivas. Se han propuesto 41 recomendaciones sobre el manejo de estas condiciones, con unanimidad por parte de los participantes en el consenso. Con ellas se ha intentado aclarar puntos oscuros o controvertidos, facilitando la actitud del clínico ante ellos en la práctica médica actual.

Abstract Glyphonycteris is a poorly known genus of bats that inhabit lowlands and forested mountains of Central and South America. This genus comprises three nominal species, with G. sylvestris being themost widely distributed species in South America. The karyological data previously available for this genusare restricted to those resulting from conventional staining techniques applied to a few specimens from Surinam. Here, we report the first record of G. sylvestris in Argentina extending its southern distribution. Moreover, our new locality represents the seventh record from the Atlantic Forests Biome and the first from Araucaria Moist Forest ecoregions. Our specimen overall exhibits the diagnostic characteristics described for the species except for some differences in the distribution of hairs on the wings and limbs. The fecal sample obtained from our specimen contained only seeds of Piper aduncum. The karyotype was 2n = 22 with a FN = 42; the analysis of fluorochrome banding patterns in the chromosomal pericentromeric regions shows DAPI (4,6-diamidino-2-phenylindole) positive blocks in pairs 5 and 8, whereas pericentromeric regions stained with CMA3. (Chromomicine A3) are positive in pairs 1, 2, 3, 4 and 11. Moreover, the interstitial region of chromosomes shows DAPI and CMA3 positive blocks in pairs 1, 2, 3, 4 and 5. These karyological data are novel to G. sylvestris, contributing to the scarce knowledge of the genus. Thus, filling blanks of information and enabling further comparative chromosome analysis.

Thirty seven new localities are added to the distribution of 15 species of bats from northern Argentina (families Noctilionidae, Phyllostomidae, Vespertilionidae, and Molossidae). The new records, belonging to 98 specimens analyzed, were obtained during field works in the provinces of Catamarca, Corrientes, Entre Ríos, Jujuy, Misiones, Salta, and Tucumán. Some localities represent important extensions to the known distributional area of some species. We add seven species to four provinces (four to Catamarca, and one to the provinces of Corrientes, Entre Rios, and Salta). We also report information about the coexistence of Myotis levis and M. dinellii in the province of Entre Ríos, and add three species (Noctilio leporinus, Eptesicus diminutus and Cynomops planirostris) to the Yungas forests in the poorly sampled latitudinal band of 25º S latitude.

En este trabajo se reportan 37 nuevas localidades de distribución para 15 especies de murciélagos del norte de Argentina, pertenecientes a las familias Noctilionidae, Phyllostomidae, Vespertilionidae y Molossidae. Estos registros corresponden a 98 ejemplares procedentes de siete provincias (Catamarca, Corrientes, Entre Ríos, Jujuy, Misiones, Salta y Tucumán). Algunas localidades representan importantes extensiones para la distribución conocida de las especies. Se agregan siete especies a cuatro provincias (cuatro a Catamarca, una a Corrientes, una a Entre Ríos y una a Salta). Además, se agregan puntos de simpatría para Myotis levis y M. dinellii en la provincia de Entre Ríos, y se agregan tres especies (Noctilio leporinus, Eptesicus diminutus y Cynomops planirostris) a la escasamente muestreada franja latitudinal de 25º S, en la región de las Yungas.

New species of bat-ectoparasite insects are added to the fauna of Argentina and distributional limits are extended for others, based on information obtained from 21 species of bats collected. New data is reported for the distribution of 23 species of bat ectoparasites, of which 17 belong to the Order Diptera [14 Streblidae: Anastrebla caudiferae Wenzel, Anatrichobius scorzai Wenzel, Aspidoptera phyllostomatis (Perty), Megistopoda aranea (Coquillett), M. proxima (Sèguy), Metelasmus pseudopterus Coquillett, Noctiliostrebla aitkeni Wenzel, N. dubia (Rudow), Paradyschiria fusca Speiser, Paradyschiria sp., Strebla chrotopteri Wenzel, Strebla diaemi Wenzel, Trichobius parasiticus Gervais y Xenotrichobius noctilionis Wenzel, and three Nycteribiidae: Basilia carteri Scott, B. plaumanni Scott y B.neamericana Schuurmans Stekhoven (Jr)], three belong to the Order Siphonaptera [one Ischnopsyllidae: Myodopsylla isidori (Weyenbergh), one Tungidae: Rhynchopsyllus pulex Haller, and one Stephanocircidae: Craneopsylla m. minerva (Rothschild)] and three belong to Order Hemiptera [two Polyctenidae: Hesperoctenes fumarius (Westwood) and H. vicinus Jordan, and one Cimicidae: Latrocimex spectans Lent]. Some records are new for Argentina, while others are new for the provinces of Corrientes, Chaco, Entre Ríos, Jujuy, Misiones and Salta. Also new host-parasite relationships are reported.

Se agregan nuevas especies de insectos ectoparásitos de murciélagos a la fauna de Argentina y se extiende los límites de distribución de otras, mediante ejemplares colectados de 21 especies de murciélagos. Se reportan novedades distribucionales para 23 especies de ectoparásitos de las cuáles 17 pertenecen al Orden Diptera [14 Streblidae: Anastrebla caudiferae Wenzel, Anatrichobius scorzai Wenzel, Aspidoptera phyllostomatis (Perty), Megistopoda aranea (Coquillett), M. proxima (Sèguy), Metelasmus pseudopterus Coquillett, Noctiliostrebla aitkeni Wenzel, N. dubia (Rudow), Paradyschiria fusca Speiser, Paradyschiria sp., Strebla chrotopteri Wenzel, Strebla diaemi Wenzel, Trichobius parasiticus Gervais y Xenotrichobius noctilionis Wenzel, y tres Nycteribiidae: Basilia carteri Scott, B. plaumanni Scott y B.neamericana Schuurmans Stethoven (Jr)], tres pertenencen al Orden Siphonaptera [un Ischnopsyllidae: Myodopsylla isidori (Weyenbergh), un Tungidae: Rhynchopsyllus pulex Haller y un Stephanocircidae: Craneopsylla m. minerva (Rothschild)] y tres al Orden Hemiptera [dos Polyctenidae: Hesperoctenes fumarius (Westwood) y H. vicinus Jordan, y un Cimicidae: Latrocimex spectans Lent]. Algunos registros son nuevos para Argentina, mientras que otros son nuevos para las provincias de Corrientes, Chaco, Entre Ríos, Jujuy, Misiones y Salta. Además se registran nuevas asociaciones hospedador-ectoparásito.