Morphology of the male reproductive system and spermatozoa of Mahanarva fimbriolata (Stål, 1854) (Hemiptera: Cercopidae) with evidence of a spermatostyle in the sperm conjugation.

Changes in harvesting methods in the early 1990s led to Mahanarva fimbriolata becoming the most prevalent pest in sugarcane plantations. Encouraged by the scarcity of research on the reproductive system and spermatology of Auchenorrhyncha, we provide a detailed description of the male reproductive system and spermatozoa of this cercopid. This will not only aid in taxonomic purposes but also help in understanding the reproductive biology of the species. The male reproductive system, spermatozoa, and sperm bundles of M. fimbriolata were investigated using light microscopy. Our results reveal a reproductive system consisting of a pair of testes, each with 36 follicles, two vasa deferentia, two well-developed seminal vesicles, a single pair of accessory glands, and an ejaculatory duct. Here, we also describe and explore the particularities of the formation of secondary sperm bundles, where cells interestingly bind only to the apical region of the spermatostyle. We also propose some possible benefits of this unusual organization for the reproductive success of the species.

Two new species of genus Joruma McAtee (Hemiptera: Cicadellidae: Typhlocybinae) from Viçosa, Minas Gerais State, Brazil.

Joruma abernardesi sp.nov. and Joruma phrolfsi sp.nov. (Typhlocybinae: Jorumini) are described based on specimens from Mata do Paraíso, an Atlantic Forest reserve located at Viçosa municipality. This is the first record of the genus Joruma McAtee in Minas Gerais State, southeastern Brazil.

A new species of Balera Young and redescription of Habralebra gillettei Young (Hemiptera, Cicadellidae, Typhlocybinae) from Viçosa, Minas Gerais State, Brazil.

Balera fiuzai sp. nov. is described based on male specimens obtained from light trap collections at Mata do Paraíso, Municipality of Viçosa, Minas Gerais State, Brazil. An identification key to the species of Balera is given. Additionally, Habralebra gillettei Young is redescribed from the same locality. These specimens of H. gillettei differ somewhat from previously described specimens, but are considered intra-specific variations. Both genera, Balera Young and Habralebra Young, are recorded from Minas Gerais State for the first time.

Leptophlebiidae ocorrentes no Estado do Rio de Janeiro, Brasil: hábitats, meso-hábitats e hábitos das ninfas (Insecta: Ephemeroptera) / Leptophlebiidae from Rio de Janeiro State, Brazil: nymphal habitats, mesohabitats, and habits (Insecta: Ephemeroptera)

A família Leptophlebiidae é ainda pobremente conhecida no Estado do Rio de Janeiro, tanto em termos faunísticos quanto taxonômicos e biológicos. No presente trabalho foram reunidos dados biológicos acerca de 14 gêneros (Askola, Farrodes, Hagenulopsis, Hermanella, Hylister, Leentvaaria, Massartella, Miroculis, Needhamella, Perissophlebiodes, Thraulodes, Traverella e Ulmeritoides, além de um gênero ainda não descrito) e em torno de 25 morfoespécies ocorrentes no estado. Em termos ecológicos, a maioria dos gêneros e espécies dessa família está associada a ambientes lóticos ritrais, colonizando áreas de deposição de material orgânico alóctone.

The leptophlebiid mayflies from Rio de Janeiro State are still poorly known from faunistic, taxonomic and biological points of view. In this paper were compiled biological data about 14 genera (Askola, Farrodes, Hagenulopsis, Hermanella, Hylister, Leentvaaria, Massartella, Miroculis, Needhamella, Perissophlebiodes, Thraulodes, Traverella, Ulmeritoides, and an undescribed genus) and about 25 morphospecies from Rio de Janeiro. Most of the genera and species of this family are related to rithral habitats, occupying places with deposition of allochtonous organic matter.

A new species of Scaris from southeastern Brazil, with notes on S. nessimiani and S. bahiensis (Homoptera: Cicadellidae).

A new leafhopper species, Scaris angrensis sp.nov., is described and illustrated based on an adult male from Angra dos Reis, State of Rio de Janeiro, southeastern Brazil. The holotype is deposited in the entomological collection of Museu Nacional, Universidade Federal do Rio de Janeiro, Brazil. The new species seems to be more closely related to S. bahiensis because of its single ventral process on the aedeagal base, being distinguished from that by the apical shape of the stylus. A problem related to the illustrations in the original description of S. nessimiani and S. bahiensis is herein corrected.

A new species of Scaris from southeastern Brazil, with notes on S. nessimiani and S. bahiensis (Homoptera: Cicadellidae)

A new leafhopper species, Scaris angrensis sp.nov., is described and illustrated based on an adult male from Angra dos Reis, State of Rio de Janeiro, southeastern Brazil. The holotype is deposited in the entomological collection of Museu Nacional, Universidade Federal do Rio de Janeiro, Brazil. The new species seems to be more closely related to S. bahiensis because of its single ventral process on the aedeagal base, being distinguished from that by the apical shape of the stylus. A problem related to the illustrations in the original description of S. nessimiani and S. bahiensis is herein corrected.