Understanding toxicological implications of accidents with caterpillars Megalopyge lanata and Podalia orsilochus (Lepidoptera: Megalopygidae)

Sánchez, Mariano S.; Sciani, Juliana Mozer; Quintana, María Agustina; Martínez, María Mercedes; Tavares, Flávio L.; Gritti, Micaela A; Fan, Hui Wen; Teibler, Gladys Pamela; Peichoto, María Elisa

doi:10.1016/j.cbpc.2018.11.011

Cited by 6 publications

(14 citation statements)

References 27 publications

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“…La especie Podalia orsilochus, como otras especies de lepidópteros, puede generar daños indirectos al ser humano, al afectar cultivos como plaga, y daños directos como el erucismo, afectando la salud pública (Fernández-Rubio, 2011). En Colombia, la mayoría de los accidentes registrados por erucismo ocurren por polillas de la familia Megalopygidae, y la sintomatología registrada incluye dermatitis, dolores, calambres musculares, náuseas y vómito (Pineda & Amarillo, 2002;Gómez, 2014;Sánchez et al, 2019).…”

Section: Discussionunclassified

“…En efecto, los síntomas registrados por contacto con las orugas de Podalia orsilochus son parecidos a los síntomas iniciales generados por contacto con orugas de la especie Lonomia obliqua (Berger et al, 2013), registrándose inflamación, hemorragia e incluso necrosis en la zona lesionada (Sánchez et al, 2019), pero sin conocerse registros de muerte, como sí es el caso de las afecciones causadas por varias especies de Lonomia. Sin embargo, existe un gran vacío de información en la taxonomía y ecología de la familia Megalopygidae, dificultando su estudio y manejo (Lepesqueur, 2012).…”

Section: Discussionunclassified

“…La distribución de P. orsilochus incluye países americanos como México, Costa Rica, Panamá, Ecuador, Venezuela, Guyana, Brasil y Argentina (Janzen & Hallwachs, https://bit.ly/3arwNbj; Lepesqueur, 2012;Sánchez et al, 2019;iNaturalist). Aunque el nombre aceptado para esta especie es Podalia orsilochus (sensu Beccaloni et al 2003, https://bit.ly/3fU3LlK), la especie fue registrada por primera vez en 1977 para Colombia como plaga de cultivos del aguacate bajo el nombre Megalopyge orsilochus (Saldarriaga, 1977); sin embargo, no se brindó información sobre la localidad específica.…”

Section: Introductionunclassified

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<i>Podalia orsilochus</i> (Lepidoptera: Megalopygidae): Confirmación de su presencia en Colombia y primer registro en el Chocó

Prada-Lara

Amarillo‐Suárez

Fagua

2020

Biota

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Mediante capturas realizadas empleando trampa de luz en el Parque Nacional Natural Utría, Chocó, en 2017, se recolectaron cinco machos de Podalia orsilochus (Megalopygidae), confirmando la presencia de esta especie en Colombia y siendo el primer registro de ella para el departamento del Chocó. Así mismo, la identificación de especímenes fotografiados complementó los registros, mediante la adición de localidades de Antioquia, Caldas, Huila, Quindío, Santander y Valle del Cauca.

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Section: Discussionunclassified

Section: Introductionunclassified

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<i>Podalia orsilochus</i> (Lepidoptera: Megalopygidae): Confirmación de su presencia en Colombia y primer registro en el Chocó

Prada-Lara

Amarillo‐Suárez

Fagua

2020

Biota

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“…In contrast, very low activity towards hyaluronic acid was found in the venom from Megalopyge lanata and Podalia orsilochus (Table 2) [41]. In Lagoa crispate, no hyaluronidases were found (Table 2) [42].…”

Section: Local Tissue Damagementioning

confidence: 98%

“…It is important to highlight is that the venom-induced local tissue injury caused by P. orsilochus is quite similar to the one observed after L. obliqua envenomation. In the research of Sánchez et al (2019) [41], they noticed the presence of serine proteases in the venom by applying a gel electrophoresis technique. This type of enzyme could perhaps explain the observation that the venom is able to hydrolyze both fibrinogen and fibrin with a specificity towards the α chain of both molecules and which may lead to the observed vascular lesion [41].…”

Section: Local Tissue Damagementioning

confidence: 99%

Caterpillar Venom: A Health Hazard of the 21st Century

2020

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Caterpillar envenomation is a global health threat in the 21st century. Every direct or indirect contact with the urticating hairs of a caterpillar results in clinical manifestations ranging from local dermatitis symptoms to potentially life-threatening systemic effects. This is mainly due to the action of bioactive components in the venom that interfere with targets in the human body. The problem is that doctors are limited to relieve symptoms, since an effective treatment is still lacking. Only for Lonomia species an effective antivenom does exist. The health and economical damage are an underestimated problem and will be even more of a concern in the future. For some caterpillar species, the venom composition has been the subject of investigation, while for many others it remains unknown. Moreover, the targets involved in the pathophysiology are poorly understood. This review aims to give an overview of the knowledge we have today on the venom composition of different caterpillar species along with their pharmacological targets. Epidemiology, mode of action, clinical time course and treatments are also addressed. Finally, we briefly discuss the future perspectives that may open the doors for future research in the world of caterpillar toxins to find an adequate treatment.

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On the evolution of mimicry in avian nestlings

Londoño

Sandoval-H

Sallam

et al. 2022

Ecology and Evolution

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Batesian mimicry (BM), where a nontoxic species resembles a toxic species with aposematic coloring, has been recently described for a Neotropical species of the suboscine passerine (Laniocera hypopyrra). Understanding the order and series in which these characteristics evolved is unknown and requires character information from closely related taxa. Here, we trace the origin of mimetic traits and how they evolved by examining antipredator characteristics using images and other field‐collected trait data from nest and nestlings along with data available in the literature for the Laniisominae clade and closely related taxa. We found that morphological modifications of the downy feathers appeared first in the broader clade leading to the Laniisominae clade followed by further morphological and behavioral characteristics within the Laniisominae clade leading to the full BM. Images of nestlings in the Laniisominae and closely related clades demonstrated the extent of antipredator and camouflage characteristics. We found a complex set of behavioral and morphological traits in this clade for reducing predation from hiding to camouflage to mimicry. We further propose the evolution of two distinctive mimicry strategies in the Laniisominae clade: (1) Batesian Mimicry, as described above and (2) Masquerade, resemblance to inedible objects commonly found in their local environment. This complex set of antipredator traits shed light on the diversity of antipredator characteristics in avian nestlings, particularly in neotropical areas where the avian diversity is highest. Unfortunately, there are hundreds of species in the neotropics that lack basic natural history information on nesting traits, and therefore, we are likely missing critical information on the diversity of antipredator characteristics across avian nestlings.

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Understanding toxicological implications of accidents with caterpillars Megalopyge lanata and Podalia orsilochus (Lepidoptera: Megalopygidae)

Cited by 6 publications

References 27 publications

<i>Podalia orsilochus</i> (Lepidoptera: Megalopygidae): Confirmación de su presencia en Colombia y primer registro en el Chocó

<i>Podalia orsilochus</i> (Lepidoptera: Megalopygidae): Confirmación de su presencia en Colombia y primer registro en el Chocó

Caterpillar Venom: A Health Hazard of the 21st Century

On the evolution of mimicry in avian nestlings

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