Two new genera of Pteronemobiini crickets from the Brazilian Atlantic forest (Orthoptera, Grylloidea, Trigonidiidae, Nemobiinae)

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Karyotype of the cricket, Zucchiella atlantica, with an overview of the chromosomes of the subfamily Nemobiinae

Few reports have been published on cytogenetics in crickets of the subfamily Nemobiinae. Within the Neotropical region the karyotypes of only two species are known, both of them belonging to the genus Phoremia. In the present paper, chromosomes of a third Neotropical species, Zucchiella atlanticaMello 1990 (Orthoptera: Trigonidiidae), have been studied and a cytological review of other species of that subfamily is presented. Zucchiella atlantica shows 2n male = 22 + XO and 2n female = 22 + XX which suggests an ancestral condition within the subfamily as the diploid number in all the species previously studied ranges from 2n male = 7 to 2n female = 21. In Orthoptera those species with high chromosome numbers tend to show reduction in their chromosomal numbers by means of centric fusions rather than to increase chromosomal numbers, due to difficulties in the availability of new centromeres. A structural polymorphism in one chromosome of pair 5 was observed as an intra-individual variation, suggesting differential activity of the genome from cell to cell.

New Neotropical species of Hygronemobius Hebard, 1913 (Orthoptera: Grylloidea: Nemobiinae), including a brief discussion of male genitalia morphology and preliminary biogeographic considerations of the genus

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Análise taxonômica de duas populações do gênero Hygronemobius por meio da ultramorfologia, morfometria, bioacústica e aspectos ecológicos (Orthoptera, Gryllidae, Nemobiinae)

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Caracterização cromossômica por coloração convencional e diferencial de três populações de grilos do gênero Zucchiella Mello, 1990 (Trigonidiidae, nemobiinae)

Pós-graduação em Ciências Biológicas (Zoologia) - IBRC

Two new genera of Pteronemobiini crickets from the Brazilian Atlantic forest (Orthoptera, Grylloidea, Trigonidiidae, Nemobiinae)

Two new genera and species of Pteronemobiini crickets (Grylloidea: Trigonidiidae: Nemobiinae) are described from southern Brazilian Atlantic Forest: Kevanemobius paulistorum gen. n. et sp. n., and Pepoyara jagoi gen. n. et sp. n. The position of these genera among other Pteronemobiini is briefly discussed.

Novos táxons de Grylloidea da Floresta Latifoliada semidecídua da região de Foz do Iguaçu-PR (Orthoptera, Ensifera)

Pós-graduação em Ciências Biológicas (Zoologia) - IBB