Leandro Lourenço Dumas

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The genus Oecetis is widespread over the world, being most diverse in tropical areas, especially in the Australian Region. Of about 400 described species, only 34 occur in the Neotropical Region. Herein, we describe and illustrate three new species of Oecetis from Brazil: Oecetis angelae sp. nov., O. danielae sp. nov. and O. iara sp. nov. Furthermore, O.(More)
Philopotamidae is a large caddisfly family with 20 extant genera comprising about 1000 described species worldwide. Alterosa contains 22 described species distributed in South and Southeastern Brazil. Adults of the genus are very similar in general structure, but are remarkable for their wide variation in male genitalic morphology. The specimens were(More)
Triplectides itatiaia sp. nov. is described from specimens collected on the Itatiaia massif, Mantiqueira mountain range, Rio de Janeiro state, Brazil. The new species can be distinguished by the presence of hind wing fork I petiolate, the long dorsal excision of segment X and the flat, apically rounded mesal lobes. Female and immature stages are unknown. A(More)
Alterosa Blahnik 2005 contains 23 described species distributed in southern and southeastern Brazil. Twelve new species in the caddisfly genus Alterosa are described from Brazil: Alterosa affinis sp. nov., A. bandeira sp. nov., A. bilanceolata sp. nov., A. caissara sp. nov., A. capixaba sp. nov., A. catarinae sp. nov., A. graciosa sp. nov., A.(More)
The genus Austrotinodes Schmid, with 55 species described from the New World and Australia, is the second largest genus of the family Ecnomidae. Herein, we describe and figure two new species of Austrotinodes from Parque Nacional da Tijuca, Rio de Janeiro state, southeastern Brazil: A. carioca sp. nov. and A. quintarellii sp. nov.
Alterosa Blahnik, 2005 contains 35 described species distributed in southern and southeastern Brazil. Three new species of Alterosa from northeastern Brazil are described and illustrated, Alterosa amadoi sp. n., Alterosa castroalvesi sp. n. and Alterosa caymmii sp. n., the first records of the genus from northeastern Brazil. An identification key for all(More)
The adult male of a new species of the genus Polyplectropus Ulmer 1905a is described and illustrated based on specimens collected in Parque Nacional da Serra da Canastra, southeastern Brazil. Polyplectropus canastra sp. nov. can be distinguished from other Polyplectropus species by the shape of sternum IX, by the thumb-like mesolateral process of each(More)
The Atlantic Forest is considered one of the world's biological diversity hotspots, and is increasingly threatened by the rapid destruction and fragmentation of its natural areas. The caddisflies (Trichoptera) of Itatiaia massif, an Atlantic Forest highland area, are inventoried and cataloged here. The catalog is based on examination of bibliographies,(More)
Three new species of Smicridea McLachlan 1871 are described and illustrated based on specimens collected in Parque Nacional da Serra da Canastra and its surrounding area, Minas Gerais state, southeastern Brazil. Smicridea (Rhyacophylax) necator sp. nov. possibly belongs to the S. (R.) dispar Group, but its placement in this group is weakly supported; S.(More)
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