title: Two new species of Sminthurididae (Hexapoda, Collembola, Symphypleona) from Brazil with notes on Denisiella Folsom &amp;amp; Mills and Sphaeridia Linnaniemi
abstract: Two new species of Sminthurididae, <i>Sphaeridiapiauiensis</i> Medeiros & Bellini, <b>sp. nov.</b> and <i>Denisiellapiracurucaensis</i> Silva, Medeiros & Bellini, <b>sp. nov.</b> from Piaui state, Brazil, are herein described and illustrated. <i>Sphaeridiapiauiensis</i><b>sp. nov.</b> resembles species of the <i>irmleri</i> group, like <i>S.irmleri</i> Bretfeld & Gauer, <i>S.fibulifera</i> Bretfeld & Gauer, and <i>S.peruensis</i> Bretfeld & Schulz, by its complex male ventral tube without asymme
journal: ZooKeys