Larval morphology of benthic and interstitial water mites (Acari: Hydrachnidia) from a Luxembourgian stream Author Martin, Peter text Zootaxa 2016 4139 4 451 480 journal article 10.11646/zootaxa.4139.4.1 f598f138-e21b-4064-869e-4a9fe5433c43 1175-5326 265489 5CC5B706-E9B5-4F63-A264-1131F56F5241 Sperchon ( Sperchon ) thienemanni Koenike, 1907 Remarks. Former descriptions of larval S. thienemanni were published by Lundblad (1927) , Sparing (1959) , Ullrich (1976) , Martin (2003 , 2006) and Gerecke & Martin (2006) . The larval character which enables a separation from the other Sperchon species of the present study is the relatively large dorsal plate of S. thienemanni (length>180µm).