Insectos de la Orinoquia colombiana: evaluación a partir de la colección entomológica del instituto Alexander Von Humboldt (IAVH)

A partir de la revisión de insectos de la Colección Entomológica del Instituto Alexander von Humboldt (IAvH), provenientes de la región de la Orinoquia colombiana, se realizó una lista preliminar de los insectos de esta región. En la presente contribución se amplía el conocimiento de cuatro órdenes de insectos (Coleoptera, Dictyoptera, Hemiptera e Hymenoptera), encontrándose 168 especies, pertenecientes a 156 géneros, 59 tribus, 39 subfamilias y 15 familias. Se presentan 84 nuevos registros para la Orinoquia colombiana y cinco nuevos registros para Colombia./We compiled a preliminary list of insects for the Orinoco Basin based on the Entomological Collection of the Alexander von Humboldt Institute (IAvH). Our review expanded the information for four orders of insects (Coleoptera, Dictyoptera, Hemiptera and Hymenoptera). We found a total of 168 species, belonging to 156 genera, 59 tribes, 39 subfamilies and 15 families. We documented 84 new records for the Colombian Orinoco Basin and five new records for Colombia

Insectos de la Orinoquía colombiana: evaluación a partir de la colección entomológica del Instituto Alexander von Humboldt (IAvH)

We compiled a preliminary list of insects for the Orinoco basin based on the Entomological Collection of the Alexander von Humboldt Institute (IAvH). Our review expanded the information for four orders of insects (Coleoptera, Dictyoptera, Hemiptera and Hymenoptera). We found a total of 168 species, belonging to 156 genera, 59 tribes, 39 subfamilies and 15 families. We documented 84 new records for the Colombian Orinoco Basin and five new records for Colombia

Insectos de la Orinoquía colombiana: evaluación a partir de la colección entomológica del Instituto Alexander von Humboldt (IAvH)

We compiled a preliminary list of insects for the Orinoco basin based on the Entomological Collection of the Alexander von Humboldt Institute (IAvH). Our review expanded the information for four orders of insects (Coleoptera, Dictyoptera, Hemiptera and Hymenoptera). We found a total of 168 species, belonging to 156 genera, 59 tribes, 39 subfamilies and 15 families. We documented 84 new records for the Colombian Orinoco Basin and five new records for Colombia.A partir de la revisión de insectos de la Colección Entomológica del Instituto Alexander von Humboldt (IAvH), provenientes de la región de la Orinoquía colombiana, se realizó una lista preliminar de los insectos de esta región. En la presente contribución se amplía el conocimiento de cuatro órdenes de insectos (Coleoptera, Dictyoptera, Hemiptera e Hymenoptera), encontrándose 168 especies, pertenecientes a 156 géneros, 59 tribus, 39 subfamilias y 15 familias. Se presentan 84 nuevos registros para la Orinoquia colombiana y cinco nuevos registros para Colombia

Revisión de los géneros Eurygerris y Tachygerris (Hemiptera: Tachygerrini) para la región neotropical Revision of the genera Eurygerris and Tachygerris (Hemiptera: Tachygerrini) from the neotropical region

Se estudió la taxonomía de la tribu Tachygerrini (Hemiptera: Gerridae: Gerrinae) con 2 géneros reconocidos, Eurygerris Hungerford y Matsuda (10 especies) y Tachygerris Drake (7 especies), a partir de la revisión de 19 colecciones entomológicas del Neotrópico. El material tipo de las siguientes especies fue revisado: T. opacus, T. quadrilineatus, T. adamsoni, T. dentiferus, E. fuscinervis, E. flavolineatus, E. mexicanus y E. atrekes. Se reconocieron y redescribieron 11 especies de la tribu representadas en el Neotrópico: Tachygerris opacus, T. quadrilineatus, T. celocis, T. adamsoni, T. dentiferus, Eurygerris fuscinervis, E.flavolineatus, E. mexicanus, E. beieri, E. summatis y E. atrekes. Eurygerris kahli (Drake y Harris, 1934) es sinonimizada con Eurygerris fuscinervis (Berg, 1898). Se proporcionan redescripciones, ilustraciones, información nomenclatural y datos sobre la distribución y el hábitat para cada una de las especies. Se amplían los rangos de distribución para T. adamsoni (Venezuela), E. fuscinervis (Guatemala, México y Venezuela) y E. atrekes (Venezuela).<br>The taxonomy of the tribe Tachygerrini (Hemiptera: Gerridae: Gerrinae) was studied. The tribe comprises 2 genera: Eurygerris Hungerford and Matsuda (with 10 species) and Tachygerris Drake (with 7 species). The revision was based on the examination of 19 entomological collections in the neotropics. The type materials of T. opacus, T. quadrilineatus, T. adamsoni, T. dentiferus, E. fuscinervis, E. flavolineatus, E. mexicanus and E. atrekes were reviewed. Eleven species from the tribe were re-described for the Neotropics, Tachygerris opacus, T. quadrilineatus, T. celocis, T. adamsoni, T. dentiferus, Eurygerris fuscinervis, E. flavolineatus, E. mexicanus, E. beieri, E. summatis, and E. atrekes. Eurygerris kahli (Drake y Harris, 1934) is synonymized with Eurygerris fuscinervis (Berg, 1898). Re-descriptions, illustrations, nomenclatural information and distribution and ecological data for each of the species are also provided. The geographical distributions for T. adamsoni (Venezuela), E. fuscinervis (Guatemala, Mexico and Venezuela), and E. atrekes (Venezuela) are expanded

FIGURE 9. Rheumatobates minutus minutus. a in The Rheumatobates Bergroth, 1892 (Hemiptera: Heteroptera: Gerridae) of Colombia, including the description of R. plumipes n. sp. and a key to represented species

FIGURE 9. Rheumatobates minutus minutus. a. dorsal view of macropterous female (all legs were omited). b. fore wing. All legs were omited.Published as part of Castro-Vargas, Maria I. & Morales-Castaño, Irina T., 2011, The Rheumatobates Bergroth, 1892 (Hemiptera: Heteroptera: Gerridae) of Colombia, including the description of R. plumipes n. sp. and a key to represented species, pp. 1-18 in Zootaxa 3040 on page 13, DOI: 10.5281/zenodo.20258

Scintillation light detection in the 6-m drift-length ProtoDUNE Dual Phase liquid argon TPC

DUNE is a dual-site experiment for long-baseline neutrino oscillation studies, neutrino astrophysics and nucleon decay searches. ProtoDUNE Dual Phase (DP) is a 6 $\times$ 6 $\times$ 6 m$^3$ liquid argon time-projection-chamber (LArTPC) that recorded cosmic-muon data at the CERN Neutrino Platform in 2019–2020 as a prototype of the DUNE Far Detector. Charged particles propagating through the LArTPC produce ionization and scintillation light. The scintillation light signal in these detectors can provide the trigger for non-beam events. In addition, it adds precise timing capabilities and improves the calorimetry measurements. In ProtoDUNE-DP, scintillation and electroluminescence light produced by cosmic muons in the LArTPC is collected by photomultiplier tubes placed up to 7 m away from the ionizing track. In this paper, the ProtoDUNE-DP photon detection system performance is evaluated with a particular focus on the different wavelength shifters, such as PEN and TPB, and the use of Xe-doped LAr, considering its future use in giant LArTPCs. The scintillation light production and propagation processes are analyzed and a comparison of simulation to data is performed, improving understanding of the liquid argon properties.DUNE is a dual-site experiment for long-baseline neutrino oscillation studies, neutrino astrophysics and nucleon decay searches. ProtoDUNE Dual Phase (DP) is a 6x6x6m3 liquid argon time-projection-chamber (LArTPC) that recorded cosmic-muon data at the CERN Neutrino Platform in 2019-2020 as a prototype of the DUNE Far Detector. Charged particles propagating through the LArTPC produce ionization and scintillation light. The scintillation light signal in these detectors can provide the trigger for non-beam events. In addition, it adds precise timing capabilities and improves the calorimetry measurements. In ProtoDUNE-DP, scintillation and electroluminescence light produced by cosmic muons in the LArTPC is collected by photomultiplier tubes placed up to 7 m away from the ionizing track. In this paper, the ProtoDUNE-DP photon detection system performance is evaluated with a particular focus on the different wavelength shifters, such as PEN and TPB, and the use of Xe-doped LAr, considering its future use in giant LArTPCs. The scintillation light production and propagation processes are analyzed and a comparison of simulation to data is performed, improving understanding of the liquid argon properties