Chorthophila chenopodii Rondani, 1866

Sforzi, Alessandra & Sommaggio, Daniele, 2021, Catalog of the Diptera types described by Camillo Rondani, Zootaxa 4989 (1), pp. 1-438 : 36

Chorthophila chenopodii Rondani, 1866

ORIGINAL DESCRIPTION: 1866a: 156 (key), 162 (description).

TYPE LOCALITY: “ in collibus et planitie agri parmensis [ Parmese hills and plains ( Italy)]” ( Rondani 1866a: 162) [type locality for Chorthophila chenopodii Rondani, 1866 ] .

TYPE MATERIAL: 1 ♂, lectotype (hypopygium, fifth and sixth abdominal sternite on slides n° 18 and 19, Box Diptera Rondani 1) ( MZUF: Box 23): Chorthophila Mcq. / chenopodii Rnd. / 1204 / Genitali a parte [Genitalia separate] / lectotype Chorthophila chenopodii Rondani , ♂, V. Michelsen 1978 / Pegomyia hyoscyami Pz., V. Michelsen det 1978.

PARALECTOTYPES EXAMINED: 1 ♀ (abdomen in a microvial pinned below specimen) ( MZUF: Box 23): Chorthophila Mcq. / chenopodii Rnd. / 1204 / paralectotype; 2 ♀♀ ( MZUF: Box 23): Chorthophila Mcq. / chenopodii Rnd. / 1204 / paralectotype / Pegomyia [sic!] hyoscyami Pz., V. Michelsen det., 1978.

PARALECTOTYPE NOT EXAMINED: 1 ♀ (puparium pinned below specimen) ( MZUF: Box G): Chorthophila chenopodii R., 471 , ♀, Parma / 393 471; 1 ♂ (in poor condition, missing abdomen, right mid-, both hind-legs and right wing) ( MSNC: Box DIPTERA Ex collezione Rondani - I): Chortophila chenopodii Rdn . 517 ♂ ♀ Parma / Coll. Rondani, scatola n° 6, posiz. F-4 / Museo di Storia Naturale Università di Pisa , Calci ( PI) ex collezione Rondani ; 1 ♀ (missing left mid-leg) ( MSNC: Box DIPTERA Ex collezione Rondani - I): Chortophila chenopodii Rdn . ♀ Parm. / Coll. Rondani, scatola n° 6, posiz. F-5 / Museo di Storia Naturale Università di Pisa , Calci ( PI) ex collezione Rondani .

SLIDES: Hypopygium on slide n° 18 (Box Diptera Rondani 1): coll. Rondani n° 1204 / Chorthophila chenopodii Rond. , Lectotypus ♂, Hypopygium. Fifth and sixth abdominal sternites on slide n° 19 (Box Diptera Rondani 1): coll. Rondani n° 1204 / Chorthophila chenopodii Rondani , Lectotypus ♂, 5 Sternit.

CURRENT STATUS: junior synonym of Pegomya hyoscyami ( Panzer, 1809) ( Gorodkov et al. 1995: 8) ; junior synonym of Pegomya conformis (Fallén, 1825) ( Dely-Draskovits 1993: 79, Evenhuis & Pape 2020).

REMARKS: Rondani (1866a: 162) proposed Chorthophila chenopodii for Pegomya hyoscyami ( Panzer, 1809) sensu Robineau-Desvoidy (1830: 598) , which he considered a new species. Rondani referred to Robineau-Desvoidy’s redescription of Pegomya hyoscyami , which was based on an unspecified number of specimens, and to an unspecified number of specimens in his collection. Therefore, the type material should be in the collections of Robineau-Desvoidy (MNHN) and Rondani. No specimen labeled as Pegomya hyoscyami is present in Robineau-Desvoidy’s collection in the MNHN (Muséum national d’Histoire naturelle 2020). Hennig (1973a: 578) reported two males and one female labeled as Chorthophila chenopodii in the MZUF. Michelsen (1980b: 304) designated a lectotype reporting: “Rondani’s collection contains 2 ♂ and 3 ♀ syntypes bearing labels reading “1204”. I have labeled and now designated as lectotype a ♂ syntype … which has already been labeled as lectotype (not effectuated!) by W. Hennig. 2 ♀ paralectotypes are correctly associated, whereas the remaining 1 ♂ and 1 ♀ paralectotypes belong to Pegomya exilis (Meigen) ”. Both Hennig and Michelsen reported two MZUF males but we found only one. Michelsen did not mention a female in the MZUF and a male and a female in the MSNC (all are paralectotypes). He also reported two slides numbered 23 and 24 in Box “ Diptera Rondani 1” but these are missing. Rondani described this nominal species under the generic name Chorthophila , which is an “unjustified emendation of Chortophila Macquart, 1835 ” ( O’Hara et al. 2011: 57).