scholarly journals Iridopsis socoromaensis sp. n., a geometrid moth (Lepidoptera, Geometridae) from the Andes of northern Chile

2021 ◽  
Vol 9 ◽  
Author(s):  
Héctor Vargas
Keyword(s):  
New World ◽  
Dna Barcode ◽  
Atacama Desert ◽  
Taxonomic Diversity ◽  
Neotropical Region ◽  
Evolutionary Relationships ◽  
Northern Chile ◽  
The Andes ◽  
Geometrid Moth ◽  
Morphological Differences

Iridopsis Warren, 1894 (Lepidoptera: Geometridae: Ennominae: Boarmiini) is a New World moth genus mainly diversified in the Neotropical Region. It is represented in Chile by two described species, both from the Atacama Desert. Iridopsis socoromaensis sp. n. (Lepidoptera: Geometridae: Ennominae: Boarmiini) is described and illustrated from the western slopes of the Andes of northern Chile. Its larvae were found feeding on leaves of the Chilean endemic shrub Dalea pennellii (J.F. Macbr.) J.F. Macbr. var. chilensis Barneby (Fabaceae). Morphological differences of I. socoromaensis sp. n. with the two species of the genus previously known from Chile are discussed. A DNA barcode fragment of I. socoromaensis sp. n. showed 93.7-94.3% similarity with the Nearctic I. sanctissima (Barnes & McDunnough, 1917). However, the morphology of the genitalia suggests that these two species are distantly related. The discovery of I. socoromaensis sp. n. highlights the need for additional surveys in underexplored areas to understand better the taxonomic diversity and evolutionary relationships of the mainly Neotropical moth genus Iridopsis.

A new species of Strepsicrates Meyrick (Lepidoptera: Tortricidae) from the Atacama Desert of northern Chile previously misidentified as S. smithiana Walsingham

Zootaxa ◽  
2018 ◽  
Vol 4370 (5) ◽  
pp. 569 ◽  
Author(s):  
MARCELO VARGAS-ORTIZ ◽  
HÉCTOR A. VARGAS
Keyword(s):  
New Species ◽  
Mitochondrial Gene ◽  
Dna Barcode ◽  
Atacama Desert ◽  
Northern Chile ◽  
Cytochrome Oxidase Subunit ◽  
Native Tree ◽  
Morphological Differences ◽  
Additional Support ◽  
A New Species

The adult, larva, and pupa of Strepsicrates gattii Vargas-Ortiz & Vargas, sp. n. (Lepidoptera: Tortricidae: Olethreutinae: Eucosmini), are described and illustrated from the Atacama Desert of northern Chile. The larvae are leaf-tiers on the vulnerable native tree Morella pavonis (Myricaceae). As S. gattii was previously misidentified as S. smithiana Walsingham, morphological differences that enable the separation of the two species are highlighted. Sequences of the DNA barcode fragment of the cytochrome oxidase subunit I mitochondrial gene of the new species are provided and used in a Bayesian analysis with congeneric representatives to assess their relationships preliminarily. The divergence (K2P) with S. smithiana was 6.4–7.4%, providing additional support for separating the two species. 

scholarly journals Ypsolopha chicoi sp. n., the second representative of the widespread micromoth genus Ypsolopha Latreille (Lepidoptera, Ypsolophidae) from the Andes of northern Chile

2021 ◽  
Vol 9 ◽  
Author(s):  
Héctor Vargas
Keyword(s):  
Northern Hemisphere ◽  
Male Genitalia ◽  
Host Plants ◽  
Adult Stage ◽  
Geographic Area ◽  
Neotropical Region ◽  
Northern Chile ◽  
Number Of Species ◽  
The Andes ◽  
Morphological Differences

The largest number of species of the widespread and highly diverse micromoth genus Ypsolopha Latreille, 1796 (Lepidoptera, Yponomeutoidea, Ypsolophidae) is known from the Northern Hemisphere. Only seven species have been described from the Neotropical Region, two of which occur in Chile. The adult stage of Ypsolopha chicoi sp. n. from the arid highlands of the western slopes of the Andes of northern Chile is described and illustrated. Its larvae feed on the native shrub Muehlenbeckia fruticulosa (Walp.) Standl. (Polygonaceae). The morphology of the genitalia of Y. chicoi sp. n. resembles that of the only congeneric known to occur in the same geographic area, Y. moltenii Vargas, 2018, whose larvae feed on Adesmia verrucosa Meyen (Fabaceae). Besides using different host plants, the two species can be accurately separated, based on morphological differences in female and male genitalia.

scholarly journals Adaina jobimi sp. nov., a plume moth (Lepidoptera, Pterophoridae) associated with Baccharis alnifolia (Asteraceae) in the Andes of northern Chile

2020 ◽  
Vol 43 ◽  
pp. 329-336
Author(s):  
Héctor A. Vargas
Keyword(s):  
South America ◽  
Adult Stage ◽  
Taxonomic Diversity ◽  
First Record ◽  
Larval Feeding ◽  
Northern Chile ◽  
Wing Pattern ◽  
The Andes ◽  
Morphological Differences

The adult stage of the plume moth Adaina jobimisp. nov. (Lepidoptera: Pterophoridae: Pterophorinae: Oidaematophorini) from the arid highlands of the western slopes of the Andes of northern Chile is described and illustrated. The wing pattern and genitalia of A. jobimi resemble those of A. excreta Meyrick, 1930, from Argentina, Ecuador and Peru and A. coquimboae Gielis, 2012, the only representative of the genus previously known from Chile. Morphological differences of A. jobimi with these two congenerics are discussed. Larval feeding and pupation of A. jobimi occur on inflorescences of the native shrub Baccharis alnifolia Meyen & Walp. (Asteraceae). The discovery of A. jobimi provides the first record of the genus in a long distribution gap in mainland South America west of the Andes Range, suggesting that the taxonomic diversity of Adaina in this area deserves further attention.

scholarly journals Pleistocene Glaciation in the Atacama Desert, Northern Chile

1967 ◽  
Vol 6 (47) ◽  
pp. 749-751 ◽  
Author(s):  
S. E. Hollingworth ◽  
J. E. Guest
Keyword(s):  
Atacama Desert ◽  
Northern Chile ◽  
Pleistocene Glaciation ◽  
The Andes

Morainic deposits associated with boulder spreads and outwash sands in the High Andes of the Atacama Desert are described and provide evidence of a Pleistocene glaciation. Widespread, locally folded gravel sheets of a similar age may provide a datum for correlating movements resulting in the uplift of the Andes.

scholarly journals Systematics of Helioandesia tarregai gen. et sp. nov. (Lepidoptera: Yponomeutoidea: Heliodinidae) from the Andes of Northern Chile

2021 ◽  
Vol 731 ◽  
Author(s):  
Héctor A. Vargas
Keyword(s):  
Maximum Likelihood ◽  
Molecular Marker ◽  
Genetic Distance ◽  
Adult Stage ◽  
Dna Barcode ◽  
Cladistic Analysis ◽  
Northern Chile ◽  
Maximum Likelihood Analysis ◽  
The Andes ◽  
Likelihood Analysis

The adult stage of Helioandesia tarregai gen. et sp. nov. (Lepidoptera: Yponomeutoidea: Heliodinidae) is described and illustrated from the arid western slopes of the Andes of northern Chile. The larvae of H. tarregai gen. et sp. nov. feed as leaf skeletonizers on Mirabilis acuta (Reiche) Heimerl (Nyctaginaceae). The mostly gray forewing of H. tarregai gen. et sp. nov., ornamented with strongly bulging metallic spots, resembles that of the representatives of the mainly Nearctic Lithariapteryx Chambers, 1876. However, the latter lacks CuP in the forewing, has a single bristle in the female frenulum, and lacks a well-developed cornutus. Helioandesia gen. nov. clustered as sister to Neoheliodines Hsu, 2004 in a cladistic analysis, although no synapomorphies were found for this cluster, while Lithariapteryx was sister to Helioandesia gen. nov. + Neoheliodines based on two synapomorphies. The genetic distance between a DNA barcode sequence of H. tarregai gen. et sp. nov. and representatives of other genera of Heliodinidae Heinemann, 1877 was 9.0–12.5% (K2P), and a maximum likelihood analysis based on this molecular marker confirmed the placement of H. tarregai gen. et sp. nov. as a member of this micromoth family. This contribution represents the first confirmed record of Heliodinidae for Chile.

scholarly journals Pleistocene Glaciation in the Atacama Desert, Northern Chile

1967 ◽  
Vol 6 (47) ◽  
pp. 749-751 ◽  
Author(s):  
S. E. Hollingworth ◽  
J. E. Guest
Keyword(s):  
Atacama Desert ◽  
Northern Chile ◽  
Pleistocene Glaciation ◽  
The Andes

Morainic deposits associated with boulder spreads and outwash sands in the High Andes of the Atacama Desert are described and provide evidence of a Pleistocene glaciation. Widespread, locally folded gravel sheets of a similar age may provide a datum for correlating movements resulting in the uplift of the Andes.

scholarly journals A new species of Ithome Chambers (Lepidoptera, Cosmopterigidae, Chrysopeleiinae) from the Atacama Desert revealed by morphology and DNA barcodes

ZooKeys ◽  
2020 ◽  
Vol 912 ◽  
pp. 125-138 ◽  
Author(s):  
Sebastián Espinoza-Donoso ◽  
Dante Bobadilla ◽  
Wilson Huanca-Mamani ◽  
Marcelo Vargas-Ortiz ◽  
Héctor A. Vargas
Keyword(s):  
Dna Barcode ◽  
Atacama Desert ◽  
Taxonomic Status ◽  
Northern Chile ◽  
Maximum Likelihood Analysis ◽  
Dna Barcodes ◽  
Likelihood Analysis ◽  
Pampa Del Tamarugal ◽  
Additional Support ◽  
A New Species

Morphology and DNA barcode sequences were used to assess the taxonomic status of a micro-moth of the genus Ithome Chambers, 1875 (Lepidoptera, Cosmopterigidae, Chrysopeleiinae), whose larvae feed on inflorescences of Prosopis tamarugo Phil. (Fabaceae), a tree native to the Pampa del Tamarugal, Atacama Desert, northern Chile. As a result, Ithome tamarugensis Vargas, sp. nov. is described and illustrated. Its genitalia are remarkably similar to those of Ithome tiaynai Vargas, 2004 from coastal valleys of the Atacama Desert. However, the two species can be recognized by the shape of the phallus in males and the shape of the antrum and ductus bursae in females. The genetic distance between DNA barcodes of I. tamarugensis and I. tiaynai was 3.0–3.3% (K2P), and a maximum likelihood analysis indicated that they are in reciprocally monophyletic clusters, providing additional support for the heterospecific status suggested by morphology.

CONFOUNDINGLY COMPLEX EXPOSURE HISTORIES REVEALED BY 21NE AND 10BE ABUNDANCES IN ALLUVIAL DEPOSITS OF THE ATACAMA DESERT, NORTHERN CHILE

2017 ◽  
Author(s):  
Matthew Cross Jungers ◽  
◽  
Arjun M. Heimsath ◽  
Ronald Amundson ◽  
Greg Balco ◽  
...  
Keyword(s):  
Atacama Desert ◽  
Northern Chile ◽  
Alluvial Deposits

Potential of arsenic bioremediation by a cyanobacterium isolated from the Salado River in the Atacama Desert

2021 ◽  
Vol 43 (2) ◽  
pp. 156-160
Author(s):  
Pablo Pérez-Portilla ◽  
Juan Araya ◽  
Karem Gallardo ◽  
Adriana Aránguiz-Acuña
Keyword(s):  
Atacama Desert ◽  
Aquatic Systems ◽  
Arid Environments ◽  
Northern Chile ◽  
Evolutionary Mechanisms ◽  
Alkaline Conditions ◽  
Ph Conditions ◽  
Removal Of Arsenic ◽  
Salado River ◽  
Over Time

Abstract Cyanobacteria and microalgae are recognized as excellent metal(loid)s-bioremediators of aquatic systems. We isolated a cyanobacterium from the Salado River in the Atacama Desert, northern Chile, which was identified as Cyanobium sp. Growth inhibition bioassays were conducted with arsenic and cadmium, and tolerance of Cyanobium to these metals was estimated. Removal of arsenic was assessed under different pH conditions and over time. We showed that the Cyanobium strain isolated from the Salado River has a greater tolerance to the arsenic and cadmium compounds than other species commonly used in metal(loid)s-bioremediation. Removal of up to 90% of arsenic was obtained in alkaline conditions, within the first 3 hours of exposure suggesting that Cyanobium sp. isolated from the Atacama Desert could be further studied with biotechnological purposes and to understand the evolutionary mechanisms of adaption to arid environments.

Developments in the Archaeology of Nuclear America, 1935-60

1961 ◽  
Vol 27 (1) ◽  
pp. 46-55 ◽  
Author(s):  
Gordon R. Willey
Keyword(s):  
Native American ◽  
New World ◽  
Ethnic Identification ◽  
Origins Of Agriculture ◽  
Old World ◽  
The Andes ◽  
Culture Process

AbstractArchaeological developments in the zone extending from Mesoamerica to the Andes are summarized in terms of the following topics: early man, the origins of agriculture, the interrelationships of the Nuclear American cultures, the ethnic identification of archaeological complexes, horizonal and tradition formulations, the place of Nuclear America in the hemisphere, relationships between the New World and the Old World, the rise of native American civilizations, and main trends since 1935. These trends include increasing chronological control, greater awareness of context, growing interest in culture process, and more clarity and precision in definitions.

Sign in / Sign up

Export Citation Format

Share Document