Toxomerus calceolatus
Creators: name: Barahona-Segovia, Rodrigo M.
name: Riera, Pamela
name: Pañinao-Monsálvez, Laura
name: Guzmán, Vicente Valdés
name: Henríquez-Piskulich, Patricia
Publisher: name: Zenodo
Year: 2021
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Syrphidae
Toxomerus
Toxomerus calceolatus

description: Toxomerus calceolatus (Macquart, 1842)
Figs 210–211
Syrphus calceolatus Macquart, 1842: 91
Mesogramma calceolatus Shannon, 1927: 24 *
Mesograpta calceolatus Fluke, 1956: 219 *
Type locality and data. “ Chile ” (T, A, MNHNP).
Material examined. Antofagasta: 1♂, Toconao, El Loa, 8.I.1996, Leg. G. Cerda (MNHNCL); Coquimbo: 1♀, Tranque Recoleta, 28.X.1975, Leg. Camousseight (MNHNCL); 2♂, 2♀, El Naranjo, Tilama, I.1968, Leg. J. Molina (MEUC); Valparaíso: 1♀, San Pedro, 5.IV.1966, Leg. C. Vivar (MNHNCL); 1♂, Caleta Higuerillas, 6.V.1963, Leg. Hichins (MNHNCL); 1♀, Santa Rosa de Colmo, 14.VIII.1963, Leg. Hichins (MNHNCL); 1♂, Bosque relicto Quintero, 9.IV.1966, Leg. C. Vivar (MNHNCL); 1♂, Limache, 11.V.1966, Leg. C. Vivar (MNHNCL); 1♀, Los Andes, 30.XI.1957, Leg. NN (MNHNCL); 1♂, Las Melosas, 16.XII.1995, Leg. G. Cerda (MNHNCL); Metropolitana: 4♂, 4♀, Rinconada de Maipú, 30.I.1963, Leg. NN (MEUC); O’Higgins: 1♀, San Vicente de TaguaTagua, 15.XI.1969, Leg. F. Rojas (MNHNCL); Los Ríos: 3♂, 7♀, Valdivia, 22.III.1981, Leg. E. Krahmer (UACH); 1♂, Santa María, 9.X.1988, Leg. E. Krahmer (UACH); Los Lagos: 1♂, Ancud, Chiloé, 30.I.1996, Leg. M. Cerda (MNHNCL).
References. Macquart, 1842: 151 (desc.); Williston, 1886: 311 (cat.); Reed, 1888: 300 (cat.); Shannon, 1927: 24 (desc. & key); Shannon & Aubertin, 1933: 138, fig. 26a (abdomen, female) (desc.); Etcheverry, 1963: 58 (cat.); Rojas, 1966: 175 (cat. of predators of aphids); Etcheverry, 1970: 95 (cat.), Thompson et al., 1976: 49 (cat.); Marinoni et al., 2007: 149 (illustrated key); Thompson & Thompson, 2006: 325 (desc. & cat.); Boyes et al., 1973: 371 (karyotypes); González & Coscarón, 2005: 347 (distr.); Smith-Ramírez et al., 2005: 412 (pollinator study); López et al., 2012: 6 (key).
World distribution. Argentina and Chile.
Chilean distribution. From Antofagasta to Los Lagos región (Fig. 220).
Altitudinal range. From coastal to highland ecosystems (5– 2,500 m.a.s.l.).
Biology and notes. Some indivudals of T. calceolatus recently captured showed some grade of melanism in the tergites, with yellow fasciae thinnest, which can due to coldest conditions of growing habitat of larvae. Toxomerus calceolatus is associated with the native herbaceous and tree species Anagallis alternifolia Cav. var. and E. cordifolia, respectively (Smith-Ramírez et al. 2005, 2016). This flower fly species has been observed visiting B. rapa (Joaquín López, CSP record); Baccharis sp. (Matías Cortés, CSP record); Hebe speciosa (A. Cunn) J. C. Andersen (Fernanda Gatalina, CSP record); T. officinale (Daniel Cross, Gabriel Germain and Victor Jesam, CSP records); Ranunculus sp. (Norka Contreras, CSP records) and R. raphanistrum (Ani Mari and Felipe Cabello, CSP records).
Conservation status. LC; EOO = 516,491 km 2, AOO = 56 km 2 and 15 localities (or subpopulations).
description: Published as part of 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, pp. 1-178 in Zootaxa 4959 (1) on page 151, DOI: 10.11646/zootaxa.4959.1.1, http://zenodo.org/record/4693464