Copestylum (Tachinosyrphus) pseudotachina ( Hull, 1936 )

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: 96

publication ID

https://doi.org/10.11646/zootaxa.4959.1.1

publication LSID

lsid:zoobank.org:pub:3BAB6920-30AC-410A-995B-BBDA9E2A105D

DOI

http://doi.org/10.5281/zenodo.4705739

persistent identifier

http://treatment.plazi.org/id/03FD4340-FFE5-1807-FF27-0FE9FDDBFADD

treatment provided by

Plazi

scientific name

Copestylum (Tachinosyrphus) pseudotachina ( Hull, 1936 )
status

 

Copestylum (Tachinosyrphus) pseudotachina ( Hull, 1936)  

Fig. 142 View FIGURES 140–143

Tachinosyrphus pseudotachina Hull 1936: 167  

Type locality and data. “ Crucero , Moscardones, Peru ” (T, ♂, USNM)   .

Material examined. Tarapacá: 1♂, Pampa Antuta, Alto Chiapa , 27.IV.1969, Leg. L.E. Peña ( MEUC)   ; 1♂, Cerro del Inca, Collahuasi , 15–20.IV.2015, Leg. R. Barahona-Segovia ( PCRBS)   ; Antofagasta: 1♀, Socaire , VII.2017, phot. col. Diego Reyes ( CSP)   .

References. Hull, 1937: 167 (desc.); Hull, 1949b: 350 (desc.); Thompson, 1972b: 107 ( Milesiinae   rev.); Thompson, 1974b: 5 (corrections and restrictions of type locality); Thompson et al., 1976: 70 (cat.); Whittington, 1992: 214 (desc. Graptomyza   ); Thompson, 1999a: 332 (key); Rotheray et al., 2007: 1 (desc.).

World distribution. Peru and Chile.

Chilean distribution. From Tarapacá to Antofagasta region ( Fig. 147 View FIGURE 147 ).

Altitudinal range. This species inhabits mainly highland ecosystems (3,800–4,200 m.a.s.l.).

Biology and notes. Although the Systema Dipterorum ( Thompson & Pape 2010) reports C. pseudotachina   in Chile, we did not find any article that confirms that this species occurs in the country. Therefore, we treated this species as a new to Chile. It is the only known syrphid with bristle-like hairs on the abdomen and bare arista, which is considered a novel trait in the tribe Volucellini (Thompson 1972)   . There are only three records of this species in Chile, all from highlands in the Chilean ‘altiplano’ belonging to the Puna province ( Morrone 2014), considered a hotspot of biodiversity (Myer et al., 2000). There, this species visits yellow flowers of Parastrephia quadrangularis (Meyen) Cabrera   (Rodrigo Barahona-Segovia pers. obs.), and Aloysia deserticola (Phil.) Lu-Irving & O’Leary   (Diego Reyes, CSP record), a common plant species that blooms once Bolivian winter is over ( Fig. 142 View FIGURES 140–143 ). This species has low abundance and is affected by habitat loss due to mining and water exploitation, and climate change.

Conservation status. EN under B1ab (iii) + 2ab (iii) using EOO = 4,242 km 2; AOO = 12 km 2 and three localities (or subpopulations).

Subgenus Viereckomyia Curran, 1925  

USNM

Smithsonian Institution, National Museum of Natural History

MEUC

Universidad de Chile

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Diptera

Family

Syrphidae

Genus

Copestylum

Loc

Copestylum (Tachinosyrphus) pseudotachina ( Hull, 1936 )

Barahona-Segovia, Rodrigo M., Riera, Pamela, Pañinao-Monsálvez, Laura, Guzmán, Vicente Valdés & Henríquez-Piskulich, Patricia 2021
2021
Loc

Tachinosyrphus pseudotachina

Hull, F. M. 1936: 167
1936