Deadly and venomous Lonomia caterpillars are more than the two usual suspects

González Camila, Ballesteros-Mejia Liliana, Díaz-Díaz Juana, Toro-Vargas Diana M., Amarillo-Suarez Angela R., Gey Delphine, Léon Cielo, Tovar Eduardo, Arias Monica, Rivera Nazario, Buitrago Luz Stella, Pinto-Moraes Roberto H., Sano Martins Ida S., Decaëns Thibaud, González Mailyn A., Kitching Ian J., Rougerie Rodolphe. 2023. Deadly and venomous Lonomia caterpillars are more than the two usual suspects. PLoS Neglected Tropical Diseases, 17 (2):e0011063, 20 p.

Url - jeu de données - Entrepôt autre : https://doi.org/10.5883/DS-LONO2

Résumé : Caterpillars of the Neotropical genus Lonomia (Lepidoptera: Saturniidae) are responsible for some fatal envenomation of humans in South America inducing hemostatic disturbances in patients upon skin contact with the caterpillars' spines. Currently, only two species have been reported to cause hemorrhagic syndromes in humans: Lonomia achelous and Lonomia obliqua. However, species identifications have remained largely unchallenged despite improved knowledge of venom diversity and growing evidence that the taxonomy used over past decades misrepresents and underestimates species diversity. Here, we revisit the taxonomic diversity and distribution of Lonomia species using the most extensive dataset assembled to date, combining DNA barcodes, morphological comparisons, and geographical information. Considering new evidence for seven undescribed species as well as three newly proposed nomenclatural changes, our integrative approach leads to the recognition of 60 species, of which seven are known or strongly suspected to cause severe envenomation in humans. From a newly compiled synthesis of epidemiological data, we also examine the consequences of our results for understanding Lonomia envenomation risks and call for further investigations of other species' venom activities. This is required and necessary to improve alertness in areas at risk, and to define adequate treatment strategies for envenomed patients, including performing species identification and assessing the efficacy of anti-Lonomia serums against a broader diversity of species.

Mots-clés Agrovoc : venin, Saturniidae, taxonomie

Mots-clés géographiques Agrovoc : Amérique du Sud

Mots-clés complémentaires : lonomia

Mots-clés libres : DNA barcoding, Caterpillars, Species diversity, Brazil, Phylogenetic analysis, Taxonomy, Colombia, Moths and butterflies

Classification Agris : L60 - Taxonomie et géographie animales
L72 - Organismes nuisibles des animaux

Champ stratégique Cirad : CTS 4 (2019-) - Santé des plantes, des animaux et des écosystèmes

Agences de financement hors UE : Vicerrectoría de Investigaciones, Universidad de los Andes, Pontificia Universidad Javeriana, Humboldt Institute, Agence Nationale de la Recherche, Fondation pour la Recherche sur la Biodiversite

Projets sur financement : (FRA) Comprendre et prédire l'adaptation des espèces aux changements environnementaux chez les insectes

Auteurs et affiliations

• González Camila, Universidad de los Andes (COL) - auteur correspondant
• Ballesteros-Mejia Liliana, ISYEB (FRA)
• Díaz-Díaz Juana, Universidad de los Andes (COL)
• Toro-Vargas Diana M., Universidad de los Andes (COL)
• Amarillo-Suarez Angela R., Pontificia Universidad Javeriana (COL)
• Gey Delphine, CNRS (FRA)
• Léon Cielo, Universidad de los Andes (COL)
• Tovar Eduardo, Instituto de Investigacion de Recursos Biologicos Alexander von Humboldt (COL)
• Arias Monica, CIRAD-BIOS-UMR PHIM (FRA) ORCID: 0000-0003-1331-2604
• Rivera Nazario, Secretaria de Salud de Casanare (COL)
• Buitrago Luz Stella, Laboratorio de Salud Publica del Meta (COL)
• Pinto-Moraes Roberto H., Instituto Butantan (BRA)
• Sano Martins Ida S., Instituto Butantan (BRA)
• Decaëns Thibaud, CNRS (FRA)
• González Mailyn A., Instituto de Investigacion de Recursos Biologicos Alexander von Humboldt (COL)
• Kitching Ian J., Natural History Museum (GBR)
• Rougerie Rodolphe, MNHN (FRA) - auteur correspondant

Source : Cirad-Agritrop (https://agritrop.cirad.fr/603304/)

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