Psilochaeta chalybea ( Wiedemann, 1830 )

Patitucci, Luciano Damián, Mulieri, Pablo Ricardo, Olea, Maria Sofia & Mariluis, Juan Carlos, 2013, Muscidae (Insecta: Diptera) of Argentina: revision of Buenos Aires province fauna, with a pictorial key to species, Zootaxa 3702 (4), pp. 301-347 : 322

Psilochaeta chalybea ( Wiedemann, 1830)

( Figs. 15 , 45 )

Anthomyia chalybea Wiedemann, 1830: 428 Ophyra coerulea Macquart, 1843: 322

Anthomyia cutilia Walker, 1849: 954

Ophyra hirtula Bigot, 1885: 303

Phyronota portensis Shannon & Del Ponte, 1926: 577

Lectotype designation of Phyronota portensis . Shannon & Del Ponte (1926) described Phyronota portensis from four females and seven males (syntypes) from Buenos Aires province, Argentina . The authors referred to "Adrogué, BA [Buenos Aires]" as type locality and pointed out that some specimens were captured “in copula” on September 12, 1926 by Dr. Eduardo Del Ponte. We located one male in ANLIS and three males in USNM. One male syntype is hereby designated lectotype of Phyronota portensis Shannon & Del Ponte, 1926 . Lectotype male (ANLIS): in good condition, pinned, labels: “E. Del Ponte Coll [printed] / ♂ En copula [handwritten]” on white paper, black frame; “Adrogue (B A) [printed] / 12.9.26 [handwritten]” on white paper, black frame; “ Lectotype / Phyronota portensis / Shannon & Del Ponte, 1926 / L. D. Patitucci det. 2012” [red label, printed]. Paralectotypes in good condition (USNM): two males, pinned, labels: “E. Del Ponte Coll [printed]” on white paper, black frame; “Adrogue (B A) [printed] / 12.9.26 [handwritten]” on white paper, black frame; “ Paralectotype / Phyronota portensis / Shannon & Del Ponte, 1926 / L. D. Patitucci det. 2012” [red label, printed]. One male, pinned, in good conditions, labels: “E. Del Ponte Coll [printed]” on white paper, black frame; “Adrogue (B A) [printed] / 12.9.26 [handwritten]” on white paper, black frame; “ Phyronota / portensis / S & D P.” handwritten on white paper, “ Paralectotype / Phyronota portensis / Shannon & Del Ponte, 1926 / L. D. Patitucci det. 2012” [red label, printed].

Other material examined. ARGENTINA : BUENOS AIRES: 1 female, San Isidro, 25-VIII-1926, Shannon leg. ( ANLIS); 1 male, Adrogué, 9-XII-1926, Del Ponte leg. ( ANLIS); 1 female, Burzaco, IV-2002, Mulieri leg. ( MACN); 1 female, Burzaco, VIII-2002, Mulieri leg. ( MACN); 2 females, Buenos Aires, XI-1975, Mariluis leg. ( MACN); 1 female, Capital Federal, VIII-2007, Patitucci leg. ( MACN); 1 female, Morón, X-1983, Ibarra leg. ( ANLIS); 42 females, 63 males, Santa Clara del Mar, XI-2007, Patitucci leg. ( MACN); 3 females, Sierra de los Padres, Laguna “La Brava” XI-2007, Patitucci leg. ( MACN). CÓRDOBA: 1 female, 3 males, Huerta Grande, X- 2008, Patitucci leg. ( MACN); 1 male, Villa Allende, Córdoba capital, VI-1982, Avalos leg. ( ANLIS). MENDOZA: 1 male, Mendoza capital, II-1934, Blanchard leg. ( MLP); 2 females, Mendoza capital, 24-V-2007, Aballay leg. (IADIZA). SAN JUAN: 1 male, Calingasta, 11-I-1939 ( MLP).

Distribution in Argentina ( Fig. 45 ): Buenos Aires; Córdoba (new record); Mendoza; Neuquén; Río Negro; San Juan (new record).

References for Argentina . Carvalho (1989); Karl (1935); Malloch (1934); Rondani (1866); Shannon & Del Ponte (1926); Wulp (1883).

Remarks. Psilochaeta chalybea was redescribed by Carvalho (1989), and presents a significant morphological similarity with Psilochaeta violescens (Dodge) , endemic to Chile. This similarity is observed in their metallic coloration and terminalia morphology.

Biology. This species is associated with human envirounment ( Figueroa-Roa & Linhares 2004). The specimens captured by authors were collected on decaying beef liver, chicken viscera, and dog faeces.

Figures

FIGURE 15. Psilochaeta chalybea, female. 15 a. Head, anterior view. 15 b. Lateral view. The dotted line indicates the area without pollinosity.

FIGURES 42 – 47. Geographic distribution in Argentina. 42. Muscina stabulans. 43. Philornis seguyi. 44. P. torquans. 45. Psilochaeta chalybea. 46. P. chlorogaster. 47. P. pa m p i an a. Black dots: new records; gray squares: previous distribution; gray stars: province record (inexact data). Buenos Aires province is denoted in blue.