This page has only limited features, please log in for full access.

Unclaimed
Guillermo Pablo López-García
Laboratorio de Entomología, IADIZA CONICET, Mendoza, Argentina

Honors and Awards

The user has no records in this section


Career Timeline

The user has no records in this section.


Short Biography

The user biography is not available.
Following
Followers
Co Authors
The list of users this user is following is empty.
Following: 0 users

Feed

Journal article
Published: 30 August 2021 in Neotropical Entomology
Reads 0
Downloads 0

In this study, the third-stage larva and puparium of the copper-backed fly, Platycheirus (Carposcalis) chalconota (Philippi, 1865) are fully described using stereomicroscopy and scanning electron microscopy from material collected in peach orchards of central-west Argentina. The immature stages of P. chalconota were compared with the third-stage larva and puparium of the best-studied species in the genus Platycheirus scutatus (Meigen, 1822); as well as with the only known Carposcalis immature stages description available for the Neotropical region namely Platycheirus stegnus (Say, 1829). New data on trophic interactions and larval habitats are given: P. chalconota larvae were found feeding on the aphid’s species Uroleucon sonchi (Linnaeus, 1767) (large sow thistle aphid) and Hyperomyzus lactucae (Linnaeus, 1758) (blackcurrant-sow thistle aphid) in low vegetation as Sonchus oleraceus (common sow thistle); the species was also found feeding on Myzus persicae (Sulzer, 1776) (green peach aphid) in high vegetation as Prunus persicae (L.) Stokes (Peach trees). The third larval stage and puparium of P. chalconota are described and illustrated for the first time improving substantially the knowledge about the immature stages and natural history of Neotropical Platycheirus, constituting also a baseline for future comparative morphological studies. Despite the efficiency of P. chalconota in the biological control of pests has not been assessed, we think that relevant data presented here can be used in pest management of peach orchards and suggest P. chalconota as an excellent candidate for future studies on the life cycle, prey consumption, efficiency, artificial rearing, and its potential importance as pollinators of Peach crops.

ACS Style

Guillermo Pablo López-García; Sergio Alberto Roig-Juñet; Celeste Pérez-Bañón; Emilia Mazzitelli; Augusto León Montoya; Santos Rojo; Ximo Mengual. Description of the Third-Stage Larva and Puparium of Platycheirus (Carposcalis) chalconota (Philippi) (Diptera: Syrphidae) with New Information About the Trophic Interactions and Larval Habitats. Neotropical Entomology 2021, 1 -18.

AMA Style

Guillermo Pablo López-García, Sergio Alberto Roig-Juñet, Celeste Pérez-Bañón, Emilia Mazzitelli, Augusto León Montoya, Santos Rojo, Ximo Mengual. Description of the Third-Stage Larva and Puparium of Platycheirus (Carposcalis) chalconota (Philippi) (Diptera: Syrphidae) with New Information About the Trophic Interactions and Larval Habitats. Neotropical Entomology. 2021; ():1-18.

Chicago/Turabian Style

Guillermo Pablo López-García; Sergio Alberto Roig-Juñet; Celeste Pérez-Bañón; Emilia Mazzitelli; Augusto León Montoya; Santos Rojo; Ximo Mengual. 2021. "Description of the Third-Stage Larva and Puparium of Platycheirus (Carposcalis) chalconota (Philippi) (Diptera: Syrphidae) with New Information About the Trophic Interactions and Larval Habitats." Neotropical Entomology , no. : 1-18.

Research paper
Published: 16 April 2021 in Bulletin of Entomological Research
Reads 0
Downloads 0

We present the first report of Amblycerus dispar (Sharp) attacking stored almonds [Prunus dulcis (Mill.) D. A. Webb] in Argentina. A summarized diagnosis, illustrations, and photographs of the adult and mature larva are provided to facilitate identification. We performed species distribution models for A. dispar and its main host plant Geoffroea decorticans (Gillies ex Hook. & Arn.) Burkart. We include A. dispar into a previous morphological character matrix and conduct a phylogenetic analysis to infer its phylogenetic position. The evolution of host plant associations of the genus Amblycerus is herein re-analyzed. A. dispar and its main host shows high suitability areas especially in central-west Argentina and Chile, whereas for the USA, high suitability areas were found for the south-western which include the area of almond production in this country. Although the presence of A. dispar in the USA region is very unlikely, we recommend some awareness as other bruchines are present in the area. Although A. dispar is unlikely to become an economically important risk, monitoring for early detection is recommended to avoid productivity loss, especially when the native host is nearby cultivated areas. A. dispar is hypothesized to be the sister species of A. schwarzi Kingsolver. The colonization of a Rosaceae species is a novelty for this genus, being host shifts known as an important factor affecting both natural and agricultural systems.

ACS Style

Federico A. Agrain; Santiago Hernández Del Pino; Guillermo P. López-García; Sergio Roig-Juñent. Unusual host selection in Amblycerus dispar larvae (Coleoptera: Chrysomelidae: Bruchinae) and its potential impact on stored almonds (Prunus dulcis). Bulletin of Entomological Research 2021, 1 -10.

AMA Style

Federico A. Agrain, Santiago Hernández Del Pino, Guillermo P. López-García, Sergio Roig-Juñent. Unusual host selection in Amblycerus dispar larvae (Coleoptera: Chrysomelidae: Bruchinae) and its potential impact on stored almonds (Prunus dulcis). Bulletin of Entomological Research. 2021; ():1-10.

Chicago/Turabian Style

Federico A. Agrain; Santiago Hernández Del Pino; Guillermo P. López-García; Sergio Roig-Juñent. 2021. "Unusual host selection in Amblycerus dispar larvae (Coleoptera: Chrysomelidae: Bruchinae) and its potential impact on stored almonds (Prunus dulcis)." Bulletin of Entomological Research , no. : 1-10.

Articles
Published: 10 December 2019 in Journal of Natural History
Reads 0
Downloads 0

In this paper, we provide new biological information about Microdon(Chymophila) bruchi Shannon, 1927. We present new records of M. bruchi in nests of Camponotus mus Roger, 1863 built inside Vitis vinifera L. plants from Argentina (Mendoza Province) and records of this species for Catamarca and Entre Ríos, Argentina. DNA barcodes and data on morphology and locomotion for third-stage larvae are provided. An identification key is also given to distinguish M. bruchi from other Neotropical species of Chymophila. We designate a lectotype for Microdon bruchi Shannon, 1927, and we consider Microdon argentinae Hull, 1937 a junior synonym of M. bruchi. urn:lsid:zoobank.org:pub:D507A381-27BA-40D6-BC08-28F14579694F

ACS Style

Guillermo P. López-García; Menno Reemer; Guillermo Debandi; Ximo Mengual. New information about the third stage larva and larval habitat of Microdon (Chymophila) bruchi Shannon, 1927 (Diptera, Syrphidae) from Argentina. Journal of Natural History 2019, 53, 2833 -2853.

AMA Style

Guillermo P. López-García, Menno Reemer, Guillermo Debandi, Ximo Mengual. New information about the third stage larva and larval habitat of Microdon (Chymophila) bruchi Shannon, 1927 (Diptera, Syrphidae) from Argentina. Journal of Natural History. 2019; 53 (45-46):2833-2853.

Chicago/Turabian Style

Guillermo P. López-García; Menno Reemer; Guillermo Debandi; Ximo Mengual. 2019. "New information about the third stage larva and larval habitat of Microdon (Chymophila) bruchi Shannon, 1927 (Diptera, Syrphidae) from Argentina." Journal of Natural History 53, no. 45-46: 2833-2853.

Journal article
Published: 23 July 2018 in Insects
Reads 0
Downloads 0

Most stored-grain pest insects increase their population within a relatively short time, causing serious damage to stored products. Sitophilus oryzae (L.) is one of the world’s major stored-grain pest insects and was chosen as the model insect for our studies. This study compared the efficacy of three different dusts under laboratory conditions: aluminum dust (nanostructured alumina), DiatomiD®, and Protect-It® (commercial diatomaceous earth). Parental survival, grain damage, and progeny production were measured at 250 and 500 ppm in treated wheat. The tests were conducted in 400 mL galvanized steel jars, an experimental model used for the first time to measure the effectiveness of nanostructured alumina, since most studies have been typically performed in small petri dishes. Parental survival obtained was highest in the untreated controls, followed in decreasing order by DiatomiD®, Protect-It®, and nanostructured alumina (NSA). NSA caused the greatest mortality. All treatments significantly reduced grain weight loss and frass production in wheat infested by S. oryzae. The degree of progeny (F1) suppression was directly related to the product and treatment rate, progeny being significantly suppressed by NSA in wheat followed by Protect-It® and DiatomiD®. Therefore, NSA had a greater impact on insect population dynamics.

ACS Style

Guillermo Pablo López-García; Micaela Buteler; Teodoro Stadler. Testing the Insecticidal Activity of Nanostructured Alumina on Sitophilus oryzae (L.) (Coleoptera: Curculionidae) Under Laboratory Conditions Using Galvanized Steel Containers. Insects 2018, 9, 87 .

AMA Style

Guillermo Pablo López-García, Micaela Buteler, Teodoro Stadler. Testing the Insecticidal Activity of Nanostructured Alumina on Sitophilus oryzae (L.) (Coleoptera: Curculionidae) Under Laboratory Conditions Using Galvanized Steel Containers. Insects. 2018; 9 (3):87.

Chicago/Turabian Style

Guillermo Pablo López-García; Micaela Buteler; Teodoro Stadler. 2018. "Testing the Insecticidal Activity of Nanostructured Alumina on Sitophilus oryzae (L.) (Coleoptera: Curculionidae) Under Laboratory Conditions Using Galvanized Steel Containers." Insects 9, no. 3: 87.

Journal article
Published: 01 March 2018 in Florida Entomologist
Reads 0
Downloads 0

Volcanic activity has very evident direct effects on arthropods due to the immediate and massive loss of habitat, environmental perturbations, and toxicity (Buteler et al. 2011). Volcanoes are a natural source of micro- and nanoparticles, which become electrically charged near the vent, mainly by fractoemission, triboelectrification, and further self-charging which lead to a wide array of particle sizes (Aplin et al. 2014). Moreover, nano-sized ash particles behave significantly different than bulk ash particles due to surface and quantum effects that influence the chemical reactivity of materials, as well as their mechanical, optical, electric, and magnetic properties (Roduner 2006). These traits may be responsible for the contact insecticidal toxicity of volcanic ash (Buteler et al. 2011), and its effect may be compared to that of other inert dusts like diatomaceous earth, which is used commercially as insecticide (Buteler et al. 2014).

ACS Style

Guillermo P. López-García; Micaela Buteler; Teodoro Stadler. Effects of Dietary Intake of Volcanic ash from Puyehue Cordon Caulle onTenebrio molitor(Coleoptera: Tenebrionidae) Larvae Under Laboratory Conditions. Florida Entomologist 2018, 101, 97 -101.

AMA Style

Guillermo P. López-García, Micaela Buteler, Teodoro Stadler. Effects of Dietary Intake of Volcanic ash from Puyehue Cordon Caulle onTenebrio molitor(Coleoptera: Tenebrionidae) Larvae Under Laboratory Conditions. Florida Entomologist. 2018; 101 (1):97-101.

Chicago/Turabian Style

Guillermo P. López-García; Micaela Buteler; Teodoro Stadler. 2018. "Effects of Dietary Intake of Volcanic ash from Puyehue Cordon Caulle onTenebrio molitor(Coleoptera: Tenebrionidae) Larvae Under Laboratory Conditions." Florida Entomologist 101, no. 1: 97-101.

Journal article
Published: 23 March 2017 in Austral Entomology
Reads 0
Downloads 0

The present study assessed the contact toxicity of nanostructured alumina (NSA) and compared it to that of diatomaceous earth (DE) on workers of Acromyrmex lobicornis. Laboratory and field bioassays were also conducted to assess whether ants avoid NSA particles. Nanostructured alumina was more toxic to ants than DE (LC50 for NSA = 0.14 mg/g; CI 0.12–0.17; LC50 for DE = 0.36 mg/g; CI 0.25–0.77). The laboratory bioassays results showed that ants were not repelled by NSA. The average repellence percentage observed in the Petri dish bioassay was 0.66 ± 3.1. No repellence was observed in field tests either, given that ants collected oat flakes treated with NSA (12.7 ± 1.2 oat flakes) in similar amounts to control oats (13.9 ± 1.6 oat flakes) after 2 h. Scanning electron microscope pictures showed that NSA was more effective than DE in attaching to the cuticle of exposed insects.This study reports for the first time the toxicity of NSA on leaf-cutting ants and shows that it has greater efficacy than DE in killing A. lobicornis at all the concentrations tested. Thus, NSA shows potential to be used as a dust insecticide that could be applied directly at the nest to induce mortality of worker ants. Further studies should address the effect of NSA on the symbiotic fungus, as well as its potential as carrier for other insecticides or fungicides.

ACS Style

Micaela Buteler; Guillermo Lopez Garcia; Teodoro Stadler. Potential of nanostructured alumina for leaf‐cutting ants Acromyrmex lobicornis (Hymenoptera: Formicidae) management. Austral Entomology 2017, 57, 292 -296.

AMA Style

Micaela Buteler, Guillermo Lopez Garcia, Teodoro Stadler. Potential of nanostructured alumina for leaf‐cutting ants Acromyrmex lobicornis (Hymenoptera: Formicidae) management. Austral Entomology. 2017; 57 (3):292-296.

Chicago/Turabian Style

Micaela Buteler; Guillermo Lopez Garcia; Teodoro Stadler. 2017. "Potential of nanostructured alumina for leaf‐cutting ants Acromyrmex lobicornis (Hymenoptera: Formicidae) management." Austral Entomology 57, no. 3: 292-296.

Journal article
Published: 01 November 2015 in Check List
Reads 0
Downloads 0

Nausigaster flukei Curran is recorded for the first time from Argentina. New specimens were collected in Mendoza, Jujuy and La Rioja provinces (Argentina), in the Monte and Chaco Phytogeographical Provinces. New records broaden the distribution of this species previously known from Paraguay and south Brazil and represent the first record of the genus Nausigaster from Argentina since 1892.

ACS Style

Ximo Mengual; Guillermo P. López García. First records of Nausigaster flukei (Diptera, Syrphidae) from Argentina. Check List 2015, 11, 1816 .

AMA Style

Ximo Mengual, Guillermo P. López García. First records of Nausigaster flukei (Diptera, Syrphidae) from Argentina. Check List. 2015; 11 (6):1816.

Chicago/Turabian Style

Ximo Mengual; Guillermo P. López García. 2015. "First records of Nausigaster flukei (Diptera, Syrphidae) from Argentina." Check List 11, no. 6: 1816.