Revista Brasileira de Entomologia Revista Brasileira de Entomologia
Rev Bras Entomol 2017;61:224-31 - Vol. 61 Núm.3 DOI: 10.1016/j.rbe.2017.05.001
Systematics, Morphology and Biogeography
Variation of cuticular chemical compounds in three species of Mischocyttarus (Hymenoptera: Vespidae) eusocial wasps
Eva Ramona Pereira Soaresa,b,, , Nathan Rodrigues Batistab, Rafael da Silva Souzac, Viviana de Oliveira Torresb, Claudia Andrea Lima Cardosoc, Fabio Santos Nascimentod, William Fernando Antonialli-Juniora,b
a Universidade Federal da Grande Dourados, Programa de Pós-graduação em Entomologia e Conservação da Biodiversidade, Dourados, MS, Brazil
b Universidade Estadual de Mato Grosso do Sul, Laboratório de Ecologia Comportamental, Dourados, MS, Brazil
c Universidade Estadual de Mato Grosso do Sul, Centro de pesquisa em biodiversidade, Dourados, MS, Brazil
d Universidade de São Paulo, Faculdade de Filosofia Ciências e Letras de Ribeirão Preto, Departamento de Biologia, Ribeirão Preto, SP, Brazil
Recebido 12 Janeiro 2017, Aceitaram 08 Maio 2017
Abstract

The social wasps have a remarkable system of organization in which chemical communication mediate different behavioral interactions. Among the compounds involved in this process, cuticular hydrocarbons are considered the main signals for nestmate recognition, caste differentiation, and fertility communication. The aims of this study were to describe the cuticular chemical compounds of the species Mischocyttarus consimilis, Mischocyttarus bertonii, and Mischocyttarus latior, and to test whether these chemical compounds could be used to evaluate differences and similarities between Mischocyttarus species, using gas chromatography coupled to mass spectrometry (GC–MS). Workers from these three species presented a variety of hydrocarbons ranging from C17 to C37, and among the compounds identified, the most representative were branched alkanes, linear alkanes and alkenes. The results revealed quantitative and qualitative differences among the hydrocarbon profiles, as confirmed by discriminant analysis. This study supports the hypothesis that cuticular chemical profiles can be used as parameters to identify interspecific and intercolony differences in Mischocyttarus, highlighting the importance of these compounds for differentiation of species and populations.

Keywords
Chemical profile, Cuticular hydrocarbons, Mischocyttarus, Polistinae, Surface pheromones
Rev Bras Entomol 2017;61:224-31 - Vol. 61 Núm.3 DOI: 10.1016/j.rbe.2017.05.001