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The family was established by Flint (1981) for 2 Chilean species formerly included in the Sericostomatidae: Contulma cranifer Flint and Anomalopsyche minuta Schmid. It is the only caddisfly family fully endemic to the Neotropics and now contains 26 species (Holzenthal & Flint 1995, Holzenthal & Robertson 2006), distributed in the mountainous regions from Costa Rica south to Chile and in the highlands of southeastern Brazil. The larvae of both genera have been described (Flint 1981, Holzenthal & Flint 1995) and inhabit seeps, spring-runs, and small to medium-sized streams in forested areas as well as those above the tree line in the northern Andes. Many species frequent the splash zone of waterfalls and cascades, where they are often found in aquatic moss. The larvae have scraping mandibles and more than likely feed on periphyton. They build cylindrical, slightly curved cases of sand grains. As a whole, members of the family are rare and infrequently collected; adults fly to lights, but are as easily collected with an aerial net during the day. Taken from Holzenthal et al. 2007.


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