Toxomerus duplicatus ( Wiedemann, 1830 )

Barahona-Segovia, Rodrigo M., Riera, Pamela, Pañinao-Monsálvez, Laura, Guzmán, Vicente Valdés & Henríquez-Piskulich, Patricia, 2021, Updating the knowledge of the flower flies (Diptera: Syrphidae) from Chile: Illustrated catalog, extinction risk and biological notes, Zootaxa 4959 (1), pp. 1-178 : 152

Toxomerus duplicatus ( Wiedemann, 1830) , doubtful record

Syrphus duplicatus Wiedemann, 1830: 142

Mesogramma duplicata Schiner, 1868: 350 *

Mesogramma duplicatus Curran, 1926d: 114 *

Syrphus ochrogaster Thomson, 1869: 494 *

Mesograpta duplicata van der Wulp, 1883: 4 *

Type locality and data. “ Uruguay, Montevideo ” (HT, ♂, ♀, NMW) .

Material examined. No individuals were reviewed. Tarapacá ( Thompson & Thompson 2006).

References. Wiedemann, 1830: 142 (desc.); Walker, 1852: 240 (desc.); Thomson, 1869: 494 (desc.); Williston, 1886: 313 (cat. & n. comb .); Lynch Arribálzaga, 1892: 52 (key); Kertész, 1910: 131 (cat.). Schiner, 1868: 350 ( n. comb .); Curran, 1926b: 114 (key); Curran, 1930a: 4 (key); Curran, 1934: 401 (key); Hull, 1941a: 312 (descr.); Sack, 1941: 97 (cat.); Hull, 1943b: 10 ( n. comb .); Hull, 1943b: 14, 18 (key & desc.). Hull, 1943b: 23 (descr.); Hull, 1943b: 32 (ill.); Hull, 1943b: 6, 32 (key & ill.); Fluke, 1956: 218–219, 221, 232 (cat.); Etcheverry, 1963: 59 (dist.); Thompson et al., 1976: 48, 50, 56 (n. comb & cat.), syn. nov.; Thompson & Thompson, 2006: 322 (desc.); Borges & Couri, 2009: 31 (desc. & syn.).

World distribution. Argentina, Brazil, Colombia, Ecuador, Mexico, Puerto Rico, Uruguay and Chile.

Chilean distribution. Unknown.

Altitudinal range. Unknown.

Biology and notes. Toxomerus duplicatus is a native species probably associated with crops in transverse valleys and ravines.A specimen identified as T. duplicatus in the MNHNCL is an individual belonging to Allograpta hortensis . Throughout this study we did not find museum specimens or collected specimens of this species. Thus, there is not enough evidence for the species to actually occur in Chile and it should be considered as a doubtful record.

Conservation status. Not evaluated because this species is a doubtful record for Chile.