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| Format: | Artículo científico |
| Language: | en |
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Academia Brasileira de Ciências
2015
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| Online Access: | https://www.redalyc.org/articulo.oa?id=32742179022 |
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Table of Contents:
- Abdominal macrochaetae of female Hylesia oratex Dyar, 1913 (Insecta: Lepidoptera: Saturniidae): external morphology and medical significance ROSÂNGELA BRITO ALEXANDRE SPECHT WILSON S.A. FILHO EDEGAR FRONZA CARLOS G.C. MIELKE Multidisciplinaria (Ciencias Naturales y Exactas) morphology lepidopterism urticating moths Allergic outbreaks The representatives of the genus Hylesia Hübner, [1820] are significant among the medically important Lepidoptera. Adult females use abdominal setae to wrap and protect the eggs that remain for months in nature. These setae, in contact with human skin, may cause allergic reactions including swelling, itching and local erythema, known as lepidopterism. The morphology of the abdominal scales and setae from the female H. oratex Dyar, 1913 is herein described and aspects related to their medical significance are discussed. Portions of each abdominal segment were examined through a scanning electron microscope. Two types of scales without medical importance, and two types of setae with medical importance, classified as "true setae" and "modified setae" were found. The true setae, which are slightly fusiform and have radially arranged lateral projections, are responsible for the allergic reactions caused by skin penetration. The modified setae, which are larger, curved, with the median enlarged and serrated margins, can be responsible for the release of chemical substances. This information provides a better understanding of the structure of the urticating setae, which are responsible for lepidopterism outbreaks in humans, and contributes towards the identification of the moth species invol ved. 2015 artículo científico 0001-3765 https://www.redalyc.org/articulo.oa?id=32742179022 en http://www.redalyc.org/revista.oa?id=327 Anais da Academia Brasileira de Ciências application/pdf Academia Brasileira de Ciências Anais da Academia Brasileira de Ciências (Brasil) Num.3 Vol.87