Description of a new early-derivative mite, Pentasetacus plicatus n. sp. (Acariformes, Eriophyoidea), and remarks on the systematic position of pentasetacines Author Chetverikov, Philipp E. Author Petanović, Radmila U. text Zootaxa 2016 4144 2 211 226 journal article 10.11646/zootaxa.4144.2.4 dedd273a-f351-45a0-8c2b-88e5920efd3b 1175-5326 267160 C560E771-F103-4A22-948A-D78EFEBD9D0A Genus Pentasetacus Schliesske, 1985 Diagnosis . Dorso-ventrally equally annulated worm-like eriophyoids with five prodorsal shield setae (unpaired vi , paired sc and paired ve ), large longitudinal bridge and spermathecal apparatus inserted midway. Spermathecal tubes short, spermathecae spherical. One medioposterior pit may be present near rear margin of prodorsal shield. Short triangular frontal lobe precedes seta vi . Setae eu absent in all stages. Type species . Pentasetacus araucariae ( Schliesske, 1985 ) Described species . P. araucariae ( Schliesske, 1985 ) and P. plicatus n. sp. Plant hosts . Vagrant or concealed (gall-forming) on Araucariaceae ; currently found only on Araucaria araucana (Molina) K. Koch Distribution . South America ( Chile and Peru ).