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16.9 km 2 is the main island (Lopes and Ulbrich, 2015), and the remaining area is distributed among 20 smaller islands, of which Rata Island is the largest with 0.8 km 2. The archipelago has suffered major ecological disturbances due to several human interventions. In 1737, fortifications were built, and the archipelago was transformed into a penal colony for almost 200 years. During this period, a large part of the native vegetation was devastated while exotic plants and animals were introduced to serve as food (Teixeira et al., 2003; Serafini et al., 2010). The human population in the archipelago increased significantly in 1942 through military occupation (i.e., World War II). Afterwards, significant changes were observed in the archipelago due to: • Several insecticide applications campaigns (i.e., DDT) for mosquito-control; • Wild animal introductions, such as the Teju lizard (Salvator merianae Duméril & Bibron) and the Mocó cavy (Kerodon rupestris Wied-Neuwied); • Release of birds seized in trade fairs and public markets of Recife (i.e., Saffron finch (Sicalis flaveola (Linnaeus)), House Sparrow (Passer domesticus (Linnaeus)), and the White-bellied seedeater (Sporophila leucoptera (Vieillot));

We present in the following an Errata Corrigenda for Abrantes et al. (2010) Table 2 and general counting. Furthermore, we include all additional records for Brazilian Collembola during 2010 and 2011 as an update for the species list. The update was made following the same methodology and criteria as Culik and Zeppelini (2003), and Abrantes et al. (2010). All data will fit the same table marked differently to be recognized at glance. The references presented here are restricted to the citations concerning the update only; therefore the references presented in Culik and Zeppelini (2003), and Abrantes et al. (2010) will not be repeated.

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The current total number of species found in Brazil is 270, distributed in 19 families and 92 genera, an increase of 71 species and 12 genera in the last 6 years. The greatest known diversity is found in Rio de Janeiro (132 species), Amazonas (56), Espírito Santo (30) and São Paulo (28), while there are no record to seven Brazilian states (Acre, Alagoas, Distrito Federal, Goiás, Rio Grande do Norte, Roraima and Tocantins). Distribution of the records clearly defines the areas that urge investments in scientific research and taxonomic survey and reflects the concentration of information in those centers that host the few specialists in Collembola, currently working in Brazil.

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A new genus and two new species of Sminthurinae are described. Keratosminthurus tapigu gen. nov. sp. nov. and K. calamitosus sp. nov. show a combination of features that redefines the subfamily Sminthurinae, such as a pair of sminthuroid chaetae, unguis without cavity, nine apical chaetae on tibiotarsus, 11 or more anterior dental chaetae, fourth antennal segment clearly subdivided into many (18 or more) subsegments, and asymmetric apex of mucro. The new genus also presents a striking sexual dimorphism, with modifications on male apical organ of antennal segment III, spines on the clypeus and special organs on the interocular area.

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