Fachin Diego Aguilar, Santos Charles Morphy D, Amorim Dalton de Souza
Laboratório de Morfologia e Evolução de Diptera, Universidade de São Paulo, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Departamento de Biologia, Avenida Bandeirantes, 3900, 14040-901, Ribeirão Preto, SP, Brazil..
Zootaxa. 2018 Jan 7;4369(4):557-574. doi: 10.11646/zootaxa.4369.4.6.
Two new species of the genus Austroleptis Hardy, so far known only from Australia and Chile, are described from the Brazilian Atlantic Forest-A. longirostris nov. sp. and A. papaveroi nov. sp. The species share clear apomorphic features of the genus, as the subdivision of female tergite 8. Both new species share a distinctive wing pattern, and a flagellomere 1 that is as wide as the more distal flagellomeres, features that clearly differentiate them from the Chilean and Australian species. It is likely that the Brazilian species compose a small clade apart from the Chilean species of the genus. A. longirostris nov. sp. has a particular long proboscis, even for the standards of non-tabanid tabanomorphs, while A. papaveroi nov. sp. has a stump on M3. The scutum coloration also helps to discriminate between both species. This is an additional example of a group in southern Brazil with southern temperate connections, i.e., involving southern Chile and Argentina and either Australia, New Zealand or both. Additional records and illustrations of Austroleptis atriceps Malloch and A. penai Nagatomi Nagatomi from Chile are provided.
描述了澳细腹虻属（Austroleptis）Hardy的两个新物种，目前仅在澳大利亚和智利有记录，此次是在巴西大西洋森林发现的——长喙澳细腹虻（A. longirostris nov. sp.）和帕氏澳细腹虻（A. papaveroi nov. sp.）。这两个物种具有该属明显的近裔性状特征，如雌性第8背板的细分。两个新物种都有独特的翅斑，以及与更靠后的鞭节等宽的第1鞭节，这些特征使它们明显区别于智利和澳大利亚的物种。巴西的这些物种可能构成了一个与该属智利物种不同的小分支。长喙澳细腹虻新物种具有特别长的喙，即使以非虻科虻形类的标准来看也是如此，而帕氏澳细腹虻新物种在M3处有一个残端。盾片颜色也有助于区分这两个物种。这是巴西南部一个与南温带地区有联系的类群的又一个例子，即涉及智利南部和阿根廷以及澳大利亚、新西兰或两者。还提供了来自智利的黑腹澳细腹虻（Austroleptis atriceps Malloch）和佩氏澳细腹虻（A. penai Nagatomi Nagatomi）的更多记录和图示。
