Philornis torquans Nielsen 1913
Creators: name: Couri, Márcia S.
name: Antoniazzi, Leandro R.
name: Beldomenico, Pablo
name: Quiroga, Martin
Publisher: name: Zenodo
Year: 2009
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Muscidae
Philornis
Philornis torquans

description: Philornis torquans (Nielsen, 1913)
Mydaea anomala: Nielsen (1911: 195). Misidentification, not Mesembrina anomala Jaennicke, 1867. Mydaea torquans Nielsen, 1913: 252 (new name for anomala Jaennicke sensu Nielsen 1911). Lectotype male (ZMUC), by designation of Dodge (1968: 156). Type locality: Argentina, Concepción.
This species can be recognised as follows: frons silvery, antenna and palpus yellow; cheek yellow haired; scutum dark brown with grayish pollinosity, with the quadrivittate pattern typical of the genus; post-pronotum sometimes brownish yellow in female; tip of scutellum yellowish; legs yellow in male and brown in female; wing clear, some specimens with a faint brown mark on r-m and sometimes also on dm-cu cross vein; abdomen brown in female; tergites I–III yellow in male; width of frons at level of anterior ocellus 0.06–0.09 of head width in male and 0.19–0.20 in female; hind tibia variably curved in male with 4–6 anterodorsal setae and 2–3 anteroventrals on middle third. Female with 2–3 anterodorsal setae on middle third. Larva intradermal. Puparium brown, ovate, a little broader medially, surface shining, posterior end deep with rugose margins; spiracular slits “U or “V shaped. (Fig 2 of Aldrich 1923). No cocoon mentioned in the literature on this species.
Comments: The species is well known in the literature, from larvae, puparia, adults male and female. Skidmore (1985: 78) mistakenly mentioned the provenance of the type material as Concepcion (Chile), but it originated from Concepción, Argentina (Nielsen 1913).
The original description mentioned two anterodorsal setae on the hind tibia of the male, but Dodge (1968: 156) in the description of his lectotype for P. torquans corrected this to “hind tibia distinctly bowed, with four strong AD on more than middle third while the female has 2 anterodorsals.
The species was found among the material recently collected in Argentina as below.
Material examined: (LRA): 2 adults reared from larvae. Host: Pitangus sulphuratus (Tyrannidae); location: Reserva de la Escuela de Agricultura, Ganadería y Granja [REAGG], Santa Fe (3123'S 6055'W), collection date: November 2007, accession # SF00053c, 2 adults reared from larvae, host: Polioptila dumicola (Polioptilidae); REAGG, Santa Fe (3123'S 6055'W), collection date: January 2008, accession # SF00059c, 1 adult reared from larva, host: P. dumicola (Polioptilidae); REAGG, Santa Fe (3123'S 6055'W), collection date: January 2008, accession # SF00060c, 1 adult reared from larva, host: P. dumicola (Polioptilidae); REAGG, Santa Fe (3123'S 6055'W), collection date: January 2008, accession # SF00060c, 1 adult found in nest, host: Phacellodomus striaticollis (Furnaridae); REAGG, Santa Fe (3123'S 6055'W), collection date: late March 2008, accession # SF00061, 2 adults reared from larvae, host: Zenaida auriculata (Columbidae); REAGG, Santa Fe (3123'S 6055'W), collection date: late December 2007, accession # SF00062c, 6 adults reared from pupae found in nest, host: P. dumicola (Polioptilidae); REAGG, Santa Fe (3123'S 6055'W), collection date: early February 2008, accession # SF00065, 1 adult reared from larva, host: Phacellodomus ruber (Furnaridae); Road between Esperanza and Empalme San Carlos (3131'S 6051'W), collection date: February 2007, accession # 0 0 2.
description: Published as part of Couri, Márcia S., Antoniazzi, Leandro R., Beldomenico, Pablo & Quiroga, Martin, 2009, Argentine Philornis Meinert species (Diptera: Muscidae) with synonymic notes, pp. 52-62 in Zootaxa 2261 on pages 58-59, DOI: 10.5281/zenodo.190768