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Approximately 13 genera and over 100 species (Heppner 1991) have been reported from nearly every major region except Antarctica and New Zealand. Because of their minute size and diurnal habit Heliozelidae are seldom collected. The neotropical fauna is especially poorly known. The most plesiomorphic genus. Plesiozela, is known from temperate areas in austral South America (Karsholt and Kristensen, 2003). Most of the species are included within the genera Heliozela. Antispila, and Coptodisca.