TL;DR: Six generic and 65 specific names are synonymized, 26 species are transferred to other genera, 30 removed from synonymy or from subspecific status and several previously unrecognized Brazilian taxa described by Walker are identified.
Abstract: Six generic and 65 specific names are synonymized, 26 species are transferred to other genera, 30 removed from synonymy or from subspecific status. Blazia Schaus is transferred from Lymantriidae to Limacodidae, Laruma Walker and Renada Walker from Limacodidae to Lasiocampidae and Arctiidae, respectively. Renada is a junior synonym of Paracles Walker. Several previously unrecognized Brazilian taxa described by Walker, for which types are lost, have been identified.
TL;DR: Two new species of Paracles Walker are described from the northern Andes, which differ from congeners by their small size and uniform brown coloration.
Abstract: Two new species of Paracles Walker are described from the northern Andes, which differ from congeners by their small size and uniform brown coloration: Paracles minuta n. sp. (Colombia) and P. diminuta n. sp. (Venezuela). Thagona medinata (Dognin) is recognized as a Paracles, and transferred from Lymantriidae; it differs from other Paracles in its immaculate white coloration.
TL;DR: The Acentropinae are predominantly aquatic, and reach the highest diversity in tropical regions of South East Asia/Malesia and in the Neotropical Region, and are very sensitive to degradation of water quality and habitat destruction.
Abstract: In Lepidoptera, the subfamily Acentropinae and Pyraustinae of Crambidae (Pyraloidea) and the family Arctiidae (Noctuoidea) contain species with true aquatic larvae, which live submerged during larval development. In Pyraustinae and Arctiidae only a few species exhibit an aquatic life-history. From the latter, aquatic larvae are known from the Neotropical genus Paracles. The number of aquatic Paracles species is unknown. The Acentropinae are predominantly aquatic. They are distributed worldwide, and reach the highest diversity in tropical regions of South East Asia/Malesia and in the Neotropical Region. At present, the Acentropinae include a total of 50 genera and 737 described species. All genera, assigned to the subfamily, are listed in a table, and the numbers of included species are indicated. The taxonomy and phylogeney of the genera are inadequately known. The species have a minor economic importance, however, they are very sensitive to degradation of water quality and habitat destruction.