Espécies de Megalopodidae (Coleoptera) e registro de plantas hospedeiras em fragmentos no sudoeste e oeste do Paraná

Abstract

Chrysomeloidea is currently composed of six families including Megalopodidae which has already been considered a subfamily of Chrysomelidae. It has 582 species allocated in 29 genera and three subfamilies Megalopodinae, Palophaginae and Zeugophorinae. In Brazil only species of Megalopodinae are recorded, which have preference for plants of the family Solanaceae. However, information on Megalopodidae in Brazil is still scarce both in terms of species diversity and host plants. The objective of this study was to identify the species of Megalopodidae that occur in forest fragments in the southwest and west of Paraná, seeking to associate with their host plants. For this study, we used material collected weekly with a Malaise trap in four forest fragments and also obtained through active manual collections. After screening and identification, we found 154 specimens of 11 species belonging to the genera Megalopus, Agathomerus, Homalopterus and, Mastostethus, with five species sampled. In relation to the species, the most abundant was Homalopterus sp.1. Host plants were recognized for four species of Megalopodinae: two belong to the genus Solanum (Solanaceae) and one to the genus Vernonanthura (Asteraceae) being the first record of Mastostethus in Asteraceae to Brazil. All host plants are new records for Megalopodinae species. The species Mastostethus minutus and Mastotethus martinezi are two new records for Brazil.