Revista de la Sociedad Entomológica Argentina ISSN: 0373-5680 [email protected] Sociedad Entomológica Argentina Argentina DUFEK, Matias I.; OSCHEROV, Elena B.; DAMBORSKY, Miryam P. Neriinae (Diptera: Neriidae) new records from Corrientes and Chaco, Argentina Revista de la Sociedad Entomológica Argentina, vol. 73, núm. 1-2, junio, 2014, pp. 57-60 Sociedad Entomológica Argentina Buenos Aires, Argentina Available in: http://www.redalyc.org/articulo.oa?id=322031114006 How to cite Complete issue Scientific Information System More information about this article Network of Scientific Journals from Latin America, the Caribbean, Spain and Portugal Journal's homepage in redalyc.org Non-profit academic project, developed under the open access initiative Nota Científica Scientific Note ISSN 0373-5680 (impresa), ISSN 1851-7471 (en línea) Revista de la Sociedad Entomológica Argentina 73 (1-2): 57-60, 2014 Neriinae (Diptera: Neriidae) new records from Corrientes and Chaco, Argentina DUFEK, Matias I., Elena B. OSCHEROV & Miryam P. DAMBORSKY Universidad Nacional del Nordeste, Facultad de Ciencias Exactas y Naturales y Agrimensura, Biología de los Artrópodos, Av. Libertad 5470, Corrientes, Argentina. E-mail: [email protected]; [email protected]; [email protected] Neriinae (Diptera: Neriidae) nuevos registros de Corrientes y Chaco, Argentina RESUMEN. El presente documento proporciona los registros de cuatro especies de Neriidae, Nerius pilifer Fabricius, N. plurivittatus Bigot, Eoneria blanchardi Aczél y E. aczeli Sepúlveda y Carvalho, de las provincias de Chaco y Corrientes. Nerius pilifer se capturó en ambas provincias y es una nueva cita del nordeste de Argentina. N. plurivittatus fue capturado en Mburucuyá (Corrientes), E. blanchardi y E. aczeli en Co- lonia Benítez (Chaco). Dos de estas especies, N. plurivittatus y E. aczeli, constituyen primeros registros de Argentina. PALABRAS CLAVE. Neriidae. Nuevos registros. Chaco. Corrientes. Argentina. ABSTRACT. The present paper provides records for four Neriidae species, Nerius pilifer Fabricius, N. plurivittatus Bigot, Eoneria blanchardi Aczél, 1951 and E. aczeli Sepúlveda & Carvalho, 2013, for the provinces of Chaco and Corrientes. Nerius pilifer was collected in both provinces, and is a new record for northeastern Argentina. N. plurivittatus was captured in Mburucuyá (Corrientes), E. blanchardi and E. aczeli in Colonia Benítez (Chaco). Two of these species, N. plurivittatus and E. aczeli, are re- corded for the first time from Argentina. KEY WORDS. Neriidae. New records. Chaco. Corrientes. Argentina. Neriidae is a small group of acalyptrate flies, ximately 110 species (Sepulveda et al., 2013), which can be easily recognized by its morpho- with two thirds distributed in the New World. logical features. These flies are medium to large In the Neotropical Region there are around 38 in size, measuring 5.0 to 12.0 mm, usually of species into 11 genera (Aczél, 1961; Steyskal dark colors, and the tegument of some species 1968) known to develop on decaying vegetation with yellowish or orange areas. They present an and to feed on sap, fruit and other decomposing elongated antennae projected from the frons; materials (Mangan & Baldwin, 1986; Steyskal, the pedicel is laterally flattened with arista on 1987; Buck, 2010). Regarding their mating be- the dorso-apical margin of first flagellomere; the havior, males may or may not perform courtship legs are slender with long coxa and femur, that and stay close by the females during oviposition can carry spines at the anteroventral region; (William, 1998). and most species have yellowish to brownish The aim of this note is to report the occurren- wings. The male genitalia is generally uniform ce of four species of Neriinae, not mentioned and the females possess a conspicuous ovipo- before from northeastern Argentina. sitor (Aczél 1951, 1961; Steyskal 1968). Sampling was conducted in four protected Neriidae distribution is almost entirely cir- areas: Reserva Natural Educativa Colonia Benítez cumtropical. Two subfamilies are recognized, (58º 56´ W; 27º 29´ S), San Fernando department Telostylinae and Neriinae, comprising appro- (Chaco Province); Parque Nacional Mburucuyá Recibido: 17-IX-2013; aceptado: 2-II-2014 57 Revista de la Sociedad Entomológica Argentina 73 (1-2): 57-60, 2014 (57° 59´ W; 27° 58´ S), Mburucuyá department; specimens were deposited in the collection of Parque San Nicolás (57° 26´ W; 28° 10´ S), San Universidad Nacional del Nordeste, Facultad Miguel department and in Galarza (56° 40’ W; de Ciencias Exactas y Naturales y Agrimensura 28° 06’ S), Santo Tomé department (Corrientes (CARTROUNNE), Corrientes, Argentina. province) (Fig. 1). The Reserva Natural Educa- tiva Colonia Benítez, Parque Nacional Mburu- Nerius pilifer Fabricius cuyá and Parque San Nicolás are located in the New occurrences from Corrientes and Chaco. Chacoan biogeographic province in the Eastern Material examined. Corrientes, Mburucuyá: Chaco District (Cabrera, 1976; Carnevalli, 1994), 5 females, 2 males, and 1 damaged specimen, Chacoan Subregion, Chaco Province according 01-III-10; 3 females, 2 males, 17-XI-10. Col. V. to Morrone (2006). Galarza is situated in the Fernández. Galarza: 1 female, 1 male and 3 da- Paranaense biogeographic province, Campos maged specimens; without sex determination, Correntinos Misioneros District (Bruniard, 1981). 23-XI-12. Col. E. B. Oscherov. San Nicolás: 1 The climate is subtropical, with hot and rainy sum- female, 1 male, 20-XI-12. Col. E. B. Oscherov. mers, and dry winters (Bruniard, 1981). Traps baited with banana. Chaco, Colonia Bení- Neriidae specimens were captured between tez: 2 females, 11-III-10 (bait: banana); 2 fema- 2010 and 2012. Canopy Van Someren-Rydon les, 1 male, and 1 damaged specimen without traps were used (Rydon, 1964). In each sam- sex determination, 05-V-10 (bait: decomposing ple date, eight traps were placed every 50 m squid); 2 females, 3 males, 05-V-10 (bait: ba- to a height above 1.50 m from the ground le- nana); 2 females, 21-XI-10 (bait: decomposing vel. Four traps were baited with decaying squid squid). Col. V. Fernández. and the remaining four with banana fermented Diagnosis: Male body length: 6.6 – 7.4 mm with yeast. All specimens were captured in nati- (excluding antenna and epandrium), female ve woodlands. The bait used in each case was length 7.6 – 8.3 mm (excluding antenna and specified in the material examined (see below). oviscape). Head partly yellowish, thorax dark The insects were dry preserved, measured, brown with one dorsal grayish stripe, pleuron mounted on pins, examined using a stereos- with densily gray and dark brown pruinescen- copic microscope Olympus SZ51, identified ce, female paler than male. Oviscape blackish using taxonomic keys (Carvalho-Filho, 2008; brown and setulose. Sepulveda et al., 2013) and quantified. The Known geographical distribution: Mexico Fig. 1. Sampling sites in the provinces of Chaco and Corrientes, Argentina. 58 DUFEK, M. I. et al. Neriidae (Diptera) new records from Argentina (Tabasco), Panama, Guyana, Surinam, Colom- three conspicuous black setulae, fronto-orbital bia, Venezuela, Ecuador, Paraguay, Brazil, and plate with three pairs of setae, and frons yellow Argentina: Tucumán, Jujuy, Misiones (Aczél, pruinose. Body yellowish to light brown, pleuron 1951; Roscov et al., 2013), Corrientes and Cha- cover with white pruinescence. co (current paper). Known geographical distribution: Colom- bia (Sepúlveda et al., 2013) and Argentina: Nerius plurivittatus Bigot Chaco (current paper). New record from Argentina. Material examined. Corrientes, Mburucuyá: DISCUSSION 1 female, 01-III-10. Col. V. Fernández. Traps baited with banana. Little is known about neriids biology, several Diagnosis: This species is larger than N. pi- researchers observed its preference for decom- lifer. Male body length (excluding antenna and posing vegetation as food supply. In this study, epandrium): 9.7–12.8 mm, female lenght 7.2 N. pilifer was also captured in traps baited with mm (excluding antenna and oviscape). Dark decaying squid. brown, thorax with two dorsal grayish stripes, Individuals were collected in March and Novem- pleuron gray and partly pruinose. Oviscape se- ber, which correspond to the end of summer and tulose, shiny brown. spring, respectively. Besides, N. pilifer was also Known geographical distribution: Mexico, captured in May (autumn) and was the only recor- Panama, Dominican Republic, Trinidad, Guya- ded at both, Eastern Humid Chaco and Paranaen- na, Venezuela, Colombia, Peru, Bolivia, Brazil se biogeographical provinces. (Roscov et al., 2013), and Argentina: Corrientes Eoneria blanchardi females were the first (current paper). neriids registered in Corrientes (Aczél, 1951), along with N. pilifer and N. plurivittatus. Thus, Eoneria blanchardi Aczél, 1951 three species are listed from this province. New occurrences from Chaco In this paper also N. pilifer, E. blanchardi and Material examined. Chaco, Colonia Benítez, E. aczeli are mentioned from Chaco province. Reserva Natural Educativa Colonia Benítez: 1 E. aczeli and N. plurivittatus were not previously female and 1 male, 11-III-10. Col. V. Fernández. recorded from Argentina, so they are reported Traps baited with banana. for the first time and the southern limit of its geo- Diagnosis: Male body length (excluding an- graphic distribution is extended. tenna and epandrium) 5.5 mm, female length 6.2 mm (excluding antenna and oviscape). Frons ACKNOWLEDGEMENTS yellowish pruinose, except for two lateral brown