Dioprosopa clavata ( Fabricius, 1794 )

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 : 124-126

Dioprosopa clavata ( Fabricius, 1794)

Figs 176–177

Syrphus clavatus Fabricius, 1794: 298

Baccha fusciventris Wiedemann, 1830: 95

Paragus scutellaris Walker, 1837: 342

Baccha varia Walker, 1849: 548

Baccha babista Walker, 1849: 549

Baccha facialis Thomson, 1869: 504

Conops quadrimaculata Ashmead, 1880: 69

Spazigaster bacchoides Bigot, 1883: 326

Mixogaster scutellata Williston, 1887: 322

Pseudodoros clavatus Thompson et al., 1976: 10

Type locality and data. “Americae meridionalis Insulis” (LT, A, UZMC).

Material examined. Arica y Parinacota: 1♂, Azapa grande, III.1966, Leg. M.V. (UTA); 1♂, Azapa km 14, I.1977, Leg. N. Hichins (UTA); 1♀, Azapa, Laboratory , UTA, 21.II.1967, Leg. NN (UTA); 2♀, Lluta, Molino, 2.VII.1986, Leg. G. Díaz P. (UTA); Lluta valley, no date, Leg. M. Etcheverry, 395 m ( Etcheverry 1952); 1♂, Azapa 1960, Leg. M. Etcheverry ( IEUMCE); 1♀, Azapa valley , 1.V.1986, Leg. S. Cerda ( MNHNCL); 1♂, Arica (ciudad), 20.XII.1986, Leg. S. Cerda ( MNHNCL); 1♂, Codpa, 30.XI.1985, Leg. M. Cerda ( MNHNCL); 2♀ , Belén, no date, Leg. M. Etcheverry ( IEUMCE) . Tarapacá: MiñeMiñe, 14.II.1948, Leg. M. Etcheverry (Etcheverry 1947); 1♀, Iquique, 1951, Leg. J. Moreno ( IEUMCE); 1♀, Mamiña, 2800 m, no date, Leg. M. Etcheverry ( IEUMCE); 1♂, 1♀, Pillalla, Pampa del Tamarugal , 26.VI.1987, Leg. D. Bobadilla (UTA); 1♀, Monte Choque, Pampa del Tamarugal , 27.V.1987, Leg. A. Gallardo (UTA) ; Antofagasta: 1♂, 1♀ , Antofagasta, 26–27.XI.1959 Leg. J . Herrera y Moreno ( UMCE); 1♂, Bosque de Tamarugos, 18.VI.1969, Leg. L. E. Peña ( MEUC); Metropolitana : 3♂, 1♀, Cementerio General de Santiago, 10.IV.2017, Leg: Rodrigo Barahona-Segovia ( PCRBS); 1♂, Estación Central, 09.XI.1986, Leg. G. Cerda ( MNHNCL); 2♀, Providencia, 05.V.2015, Leg. Rodrigo Barahona-Segovia ( PCRBS) .

References. Fabricius, 1794: 298 (desc.); Williston, 1886: 314 (cat.); Hine, 1914: 336 (desc.); Shannon & Aubertin, 1933: 135 (desc. & key); Sack, 1941: 101 (cat.); Fluke, 1956: 240 (cat.); Etcheverry, 1963: 138 (cat.); Boyes et al., 1973: 378 (karyotypes); Thompson et al., 1976: 10 (cat.); Kasseber, 2000: 80, figs 1c & 1f (desc., dist. & key); Marinoni et al., 2007: 148 (illustrated key); Morales & Köhler, 2008: 43 (floral preferences); López-García & Maza, 2013: 238 (records & dist.); Arcaya et al., 2013: 145 (larvae predatory); Miranda & Moran, 2016: 31, figs 63, 78 & 94 (female terminalia); Montoya, 2016: 475 (cat.); Marín-Armijos et al., 2017: 176 (cat.).

World distribution. Argentina, Bahamas, Brazil, Colombia, Costa Rica, Cuba, Ecuador, Hispaniola, Jamaica, Less Antillas, Puerto Rico, Venezuela and Chile.

Chilean distribution. From Arica y Parinacota to Metropolitan region ( Fig. 180 ) .

Altitudinal range. From coastal to highland ecosystems (2–3,240 m.a.s.l.).

Biology and notes. Dioprosopa clavata is a species with a wide distribution. It has been found visiting mainly exotic plants such as Myoporum laetum G. Forst , T. officinale , Trifolium sp., and Plumbago auriculata Lam. (R. Barahona-Segovia, pers. obs.). Also, this species have been observed visiting flowers of E. pectinatus , L. marítima , H. helix and Chlorophytum comosum (Thunb.) Jacques (Gabriela Germain, CSP records); C. ovata (Susana Delgado, CSP record); H. echioides (Mari Peña, CSP record) and Cuscuta sp. (Matías Cortés, CSP record). This species is an important biological controller of different insect pests such as aphids ( Rojo et al., 2003).

Conservation status. LC; EOO = 113,098 km 2, AOO = 68 km 2, 14 subpopulations and 15 localities.

Figures

FIGURE 180. Distribution map of Dioprosopa species in Chile: D. clavata (Fabricius, 1794) (blue circles) and D. vockerothi (Kassebeer, 2000) (red circles).

FIGURES 176–177. Dioprosopa clavata (Fabricius, 1794): (176) male on Lobularia maritima (L.) Desv., and (177) female on Chlorophytum comosum (Thunb.) Jacques. Both photos taken in Providencia, Santiago by Gabriela Germain.