Comments on the Classification of Neotropical Scionini (Tabanidae) with a Description of a New Genus.

The classification of the Tabanidae had remained stable over the last 60 years after Mackerras proposed a great revolution in the arrangement of the family. Recently, some new proposals based on molecular data have once again changed the classification of the family, mainly with a focus on the tribe Scionini. The present paper introduces a critical analysis based on the taxonomical view of the recent proposed classification of Scionini. Three genera are discussed: Lepmia Fairchild, Parosca Enderlein, and Pseudoscione Lutz. Lepmia atra (Philippi), L. grisea (Jaennicke), and L. leucothorax (Ricardo) are transferred to a new genus, Sixtomyiagen.n., based on its morphological differences from Lepmia. Other three species receive a new combination: Parosca subulipalpis (Enderlein) n. comb., Pseudoscione albifrons (Macquart) n. comb., Ps. hibernus (Wilkerson & Coscarón) n. comb. A key to species of Sixtomyia is provided and diagnostic characters are illustrated.

A New Species of Dichelacera (Dichelacera) Macquart (Diptera, Tabanidae) from the Brazilian Savannah.

A new species of Dichelacera (Tabanidae, Diptera) is described, based on females from Arraias, state of Tocantins, Brazil. Diagnosis, discussion, and illustrations of external and internal characters are provided. In addition, we provide unpublished photographs of Dichelacera callosa Lutz for comparison.

Notes on Teskeyellus Philip & Fairchild (Diptera: Tabanidae: Diachlorini) and Description of T. cyanommatus Sp. Nov., a Non-blood Sucking Horsefly from the Amazon Basin.

The monotypic genus Teskeyellus was described for T. hirsuticornis Philip & Fairchild 1974, from Mexico. After more than 40 years, another species is described in the genus, T. cyanommatus sp. nov., based on two females and one male specimens from Amazon basin. The type specimens of T. hirsuticornis were studied and we concluded that there are enough similarities to include the new species in Teskeyellus.

Relação entre a renda mensal e o desejo de ter filhos procurados no parceiro afetivo por homens e mulheres homossexuais e heterossexuais / Relations between sexual partner's income and their desire to have children wanted by homosexual and heterosexual men and women

A eficácia do desempenho sexual, de um modo geral, depende de uma seleção rigorosa de parceirosfeita pelos membros de cada espécie. Entre os humanos, o critério financeiro é um dos aspectos quecaracterizam a diferença sexual na seleção de parceiros. Contudo, o comportamento sexual não podeser definido apenas pelos aspectos característicos de pessoas heterossexuais, pois também existemrelacionamentos homossexuais. A partir desta perspectiva, investigou-se, através de um website, aspreferências de homossexuais e heterossexuais por renda mensal e desejo de ter filhos no parceiro.Constatou-se que os heterossexuais desejam mais ter filhos do que os homossexuais. Além disso, paraambas as orientações, a “renda mensal” não demonstrou ser um critério seletivo na hora de escolherum parceiro(AU)