Catalog of the Diptera types described by Camillo Rondani Author Sforzi, Alessandra 0000-0001-6974-7741 alessandra.sforzi@libero.it Author Sommaggio, Daniele 0000-0001-6974-7741 alessandra.sforzi@libero.it text Zootaxa 2021 2021-06-17 4989 1 1 438 journal article 10.11646/zootaxa.4989.1.1 1175-5326 4980621 89C63841-3CF4-491D-8C73-BEF7DCB18FB5 Masicera juvenilis Rondani, 1861 ORIGINAL DESCRIPTION: 1861e: 18 (key), 25 (description). TYPE LOCALITY: “ in collibus agri parmensi, et in planitiae [ Parmese hills and plains ( Italy )]” . TYPE MATERIAL: 1 ♂ , syntype (missing left mid- and hind-legs), 2 ♀♀ , syntypes (one missing left mid-leg) ( MZUF : Box 14): Masicera Macq. / iuvenilis Rnd. / 748 . CURRENT STATUS: junior synonym of Lydella grisescens Robineau-Desvoidy, 1830 ( Herting & Dely-Draskovits 1993: 204 ). REMARKS: Rondani (1861e: 25) described both sexes of Masicera juvenilis without specifying either the number or the length of the specimens: “ Uterque sexus inventus [Collected both sexes]”, treating it within the subgenus Ceromasia Rondani, 1856 , which is now considered as a valid genus ( O’Hara et al . 2011: 50 ). We found three syntypes in this study. This nominal species was described as “ iuvenilis ”. The spelling “ iuvenilis ” was also used by O’Hara et al . (2011: 210) but other authors (Brauer-Bergenstamm 1891: 316, Meade 1892b: 129 , Girschner 1899: 184 , Bezzi & Stein 1907: 790 , Herting 1984: 51 , Herting & Dely-Draskovits 1993: 204 , Evenhuis & Pape 2020 ) spelled the name as “ juvenilis ”. The spelling “ juvenilis ” is in prevailing usage, and thus considered as correct (I.C.Z.N. 1999: Article 33.3.1).