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 Chrysops alter Rondani, 1875 ORIGINAL DESCRIPTION: 1875c: 460. TYPE LOCALITY: “ Insula Bonae Fortunae ( Borneo ) , Provincia Sarawak [ Bona Fortuna Island, Sarawak Province, Borneo]” ( Rondani 1875c: 421 ). TYPE MATERIAL: 1 ♀ , lectotype ( MSNG ): Sarawak / Typus / alter Rond. / Chrysops alter n° 74. PARALECTOTYPE NOT EXAMINED: 1 ♀ (eaten by dermestids) ( MSNG ): Sarawak / Chrysops alter Rond. vid. Rondani ; 1 ♀ ( MSNG ): Sarawak / Chrysops alter Rond. vid. Rondani . CURRENT STATUS: valid species ( Stone 1975: 44 ). REMARKS: Rondani (1875c: 460) described Chrysops alter from just the female sex, without specifying the exact number of specimens, but giving a single measurement of length, from material collected by G. Doria and O. Beccari. Guiglia (1957: 194) reported a “ holotype ” ( ♀ ) in the MSNG without knowing of two females in the MSNG, which bring the original type series to three specimens . In his original description Rondani did not explicitly refer to a single specimen therefore Guiglia’s “ holotype ” specimen must be considered as the lectotype (I.C.Z.N. 1999: Article 74.6). Raineri & Rey (1996: 54) also reported a single female in the MSNG. The additional two females in the MSNG not examined by Guiglia are paralectotypes .