ABSTRACT
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.
Subject(s)
Diptera/classification , Animals , Diptera/anatomy & histology , Female , Male , Tropical ClimateABSTRACT
O parasitoide Lixophaga sp. (Diptera: Tachinidae) ocorreu em lagartas de Diaphania nitidalis (Cramer, 1782) (Lepidoptera: Crambidae) em plantio comercial de abóbora no Estado do Espírito Santo, Brasil. Não há registro de Lixophaga sp. parasitando Diaphania sp. na América do Sul e mesmo os registros para hospedeiros deste gênero são poucos. A caracterização morfológica dos adultos foi feita no Departamento e Zoologia, Instituto de Biociências da Universidade de São Paulo, Brasil. Das lagartas coletadas em campo, 26,2% estavam parasitadas, obtendo-se uma média de 2,2 pupas por lagarta e viabilidade de 14,3%. Esse parasitoide mostrou ter potencial para o controle de D. nitidalis.
The parasitoid Lixophaga sp. (Diptera: Tachinidae) occurred in larvae of Diaphania nitidalis (Cramer, 1782) (Lepidoptera: Crambidae) in a commercial pumpkin plantation in the State of Espírito Santo, Brazil. This is the first report of Lixophaga sp. parasitizing Diaphania sp. in the South America, and there are few reports concerning hosts of this genus. The morphologic characterization of the adults was made at the Department of Zoology, Institute of Bioscience, of the University of São Paulo, Brazil. Of the larvae collected in the field, 26.2% were parasitized, with an average of 2.2 pupae per larva and a viability of 14.3%. This parasitoid presented potential for the control of D. nitidalis.
