[Supplementary Material] Two new Brazilian Sennius (Coleoptera: Chrysomelidae: Bruchinae) species near the Guttifer group
Keywords:
Neotropical Region, seed-beetles, seed predators, SennaAbstract
Sennius Bridwell belongs to the richest tribe of Bruchinae, Bruchini, subtribe Acanthoscelidina, with more than 60 species distributed in the New World. The larval behavior of Sennius species stands out in being strongly associated with Cassiinae L. seeds (Fabaceae: Caesalpinioideae), especially Senna Miller. Eight species-groups were established for Sennius, but some of them are not well defined. The goal of this contribution is to describe 2 new species from Brazil, both closely related to species currently classified in the guttifer group. The new species are Sennius albopygus sp. nov. (Type locality: Brazil, Goiás, Goiânia) and Sennius solum sp. nov. (Type locality: Brazil, Goiás, Niquelândia). We have host records only for Sennius albopygus, as occurring on Senna alata (Linn.) Roxb. and Senna aculeata (Pohl ex Benth.) H. S. Irwin & Barneby. We also include illustrations and geographical distribution records for these species.
Sennius Bridwell pertence a tribo mais rica de Bruchinae, Bruchini, subtribo Acanthoscelidina, com mais de 60 espécies distribuídas no Novo Mundo. Sennius se destaca pelo hábito alimentar de suas larvas, fortemente associadas às sementes de Cassiinae L. (Fabaceae: Caesalpinioideae), especialmente Senna Miller. Oito grupos de espécies foram estabelecidos para o gênero, mas alguns desses grupos não possuem seus limites bem definidos. O objetivo desse trabalho foi descrever duas novas espécies do Brasil, ambas proximamente relacionadas com espécies do grupo guttifer. As duas espécies são: Sennius albopygus sp. nov. (Localidade do tipo: Brasil, Goiás, Goiânia) e Sennius solum sp. nov. (Localidade do tipo: Brasil, Goiás, Niquelândia), apenas a primeira possui dois registros de plantas hospedeira, Senna alata (Linn.) Roxb. e Senna aculeata (Pohl ex Benth.) H. S. Irwin & Barneby. Nesse trabalho também apresentamos ilustrações e registros de distribuição geográfica para essas espécies.
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