Occurrence of Phelypera griseofasciata and its parasitism in munguba in Seropédica, Rio de Janeiro

Thiago Sampaio De Souza,André Luis Santos Resende,Henrique Trevisan,Valmir Antonio Costa,Elen De Lima Aguiar-Menezes

doi:10.1590/1808-1657001122018

Thiago Sampaio De Souza, André Luis Santos Resende + Show 3 more

Open Access

https://doi.org/10.1590/1808-1657001122018

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Abstract

ABSTRACT: Pachira aquatica (Malvaceae), known as munguba, is cultivated for afforestation of many Brazilian cities. In Seropédica campus of UFRRJ, it was observed the defoliation of one specimen of Pachira aquatica with presence of larvae, pre-pupae, and pupae of beetle of the subfamily Hyperinae, which were reared in laboratory until the emergence of the adults; these insects were identified as belonging to the species Phelypera griseofasciata Capiomont (Coleoptera: Curculionidae). These immature forms (n=86) were again collected in this same specimen and reared in laboratory to verify the occurrence of parasitism. It was obtained 128 adults of Jaliscoa nudipennis Bouček (Hymenoptera: Pteromalidae), responsible for 44.2% of total parasitism. The sex ratio was 0.70, so the highest number of offspring was of females. Intersexual and intrasexual dimorphisms were also observed in J. nudipennis regarding the shape of the head and characteristics of the wings. This study is the first record of both insect species associated with Pachira aquatica in the state of Rio de Janeiro, Brazil.

Highlights

Pachira aquatica (Malvaceae), known as munguba, is cultivated for afforestation of many Brazilian cities
Native tree species are preferentially selected at the time to plan urban afforestation in sustainable cities, since they can rapidly adapt to the environment and help preserving biodiversity (CEMIG, 2011; OLDFIELD et al, 2013)
In light of the dimorphism found among male Jaliscoa nudipennis individuals, the current study has evaluated the sex ratio of each morphotype, in separate

Summary

Introduction

Pachira aquatica (Malvaceae), known as munguba, is cultivated for afforestation of many Brazilian cities. Tree branches whose leaves presented larvae, pre-pupae, and pupae were collected and taken to the CIMP laboratory, where they were kept under room temperature and humidity conditions (24±1°C; 65±10% RH) to enable their full development – adult individuals were analyzed to identify the species causing defoliation. 22 third and fourth instar leaf beetle larvae, 25 pre-pupae, and 39 pupae (n=86) were collected from the Pachira aquatica specimen with defoliation planted at CIMP to investigate parasitism incidence.

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