NOTES ON GEOGRAPHIC DISTRIBUTION 10TH ANNIVERSARY ISSUE Ch eck List the journal of biodiversity data Check List 11(1): 1552, January 2015 — doi: http://dx.doi.org/10.15560/11.1.1552 ISSN 1809-127X ©2015 Check List and Authors New distribution records for Sciomyzidae species (Insecta, Diptera) from Rio Grande do Sul, Brazil Frederico Dutra Kirst'*, Luciane Marinoni’ and Rodrigo Ferreira Kriiger’ 1 Universidade Federal do Paranda, Setor de Ciéncias Bioldgicas, Departamento de Zoologia, Programa de Pés-Graduacao em Entomologia, Caixa Postal 19020, CEP 81531-980, Curitiba, PR, Brazil 2 Universidade Federal de Pelotas, Instituto de Biologia, Departamento de Microbiologia e Parasitologia, campus universitario, Caixa Postal 354, CEP 96010-900, Pelotas, RS, Brazil * Corresponding author. E-mail: freddykirst@gmail.com Abstract: An inventory of the species of Sciomyzidae that oc- cur in the Coastal Plains of southern Brazil was conducted. Sampling resulted in 304 specimens, 278 of which were col- lected with nets and 26 with Malaise traps. A total of 11 species distributed in eight genera were collected. New distribution records for Protodictya iguassu Steyskal, 1950 and Thecomyia lateralis (Walker, 1858) are recorded from Rio Grande do Sul. Key words: snail-killing fly, Protodictya iguassu, Thecomyia lateralis, Coastal Plain, Neotropical Region Little is known about the Neotropical Sciomyzidae, a group of flies potentially useful in the biological control of mollusks. A total of 85 species in 23 genera occur in the region (Berg and Knutson 1978; Ferrar 1987; Knutson 1987; Marinoni and Mathis 2000). Worldwide, the family includes 600 species in 50 genera (Marinoni and Knutson 1992; Vala et al. 1999; Ma- rinoni et al. 2003). Most described species are in the Nearctic and Palearctic regions, contrasting with many groups of flies that are more diverse in the Neotropics (Marinoni and Mathis 2000). Sciomyzids are considered to be “true malacophages” and are classified into different behavioral groups. The biology of 203 species is known, and only three are not associated with mollusks (Knutson and Vala 2011). Sciomyzids that prey on non-operculated aquatic snails are promising in the control of species that act as intermediary hosts of diseases such as fas- cioliasis and schistosomiasis (Berg and Knutson 1978; Barker et al. 2004). Among sciomyzids, Pherbellia Robineau-Desvoidy, with 95 species, and Sepedon Latreille, with 80 species, are the largest genera. Both occur worldwide. In the Neotropical region, Protodictya Malloch (8 species), Sepedonea Steyskal (13 species), Sepedomerus Steyskal (3 species) and Thecomyia Perty (12 species) are the most speciose (Marinoni and Carv- alho 1993; Marinoni et al. 2003; Marinoni and Mathis 2006). They include predators of aquatic mollusks and belong to the tribe Tetanocerini. The predatory species in these three genera all belong to the same behavioral group — predators of non-operculate snails at or just below the water surface, just above surface on emergent vegetation, and occasionally those © Check List | www.biotaxa.org/cl exposed on moist surfaces — as defined by Knutson and Vala (2011). There are no apomorphic characters to facilitate the identi- fication of sciomyzid adults. These can be differentiated from other acalyptrate dipterous by the following set of morpho- logical characters: oral vibrissae absent; postvertical setae divergent to parallel; costal vein without breaks; subcostal vein complete, free from R,; vein A; complete; some or all tibiae with preapical dorsal seta; body length between 2 and 13 mm and coloring of the body ranging within pale yellow- brown, gray and black. However, their monophyly is grounded in two larval characters: the malacophagous behavior of the larvae and the presence of a serrate ventral arch that articu- lates with the lower margin of the mouth hooks (Marinoni and Mathis 2000). This study aims to contribute to the knowledge on the fam- ily Sciomyzidae, and to foster future studies on the taxonomy, ecology and behavior of the group in the Neotropical region, as well as the use of sciomizyds for the biological control of mollusks. With that goal in mind, we set out to make an inventory of the species that occur in the Coastal Plains of the state of Rio Grande do Sul, Brazil. The coastal plain of Rio Grande do Sul (PCRS) is formed by the strip around the coastal lagoons Lagoa dos Patos and Lagoa Mirim-Mangueira, and the northern littoral of Rio Grande do Sul. A total of 29 collecting sites in eight munici- palities and 12 localities were sampled, as shown in Table 1 and Figure 1. Eleven sites were within unprotected areas and the remaining sites were within parks, reserves, or ecological stations, namely: Taim Ecological Station (Taim E. S.), Lagoa do Peixe National Park (Lagoa do Peixe N. P.), José Lutzen- berger State Park (Guarita Park), and Lami Biological Reserve (ReBio Lami). Authorization for collecting in the protected areas was issued by the organizations responsible for maintaining each area (SISBIO authorization # 30404). The collecting sites were selected among priority sites for the conservation of invertebrates, as defined by the Ministé- rio do Meio Ambiente (MMA 2000). Sampling took place between October 2011 and February 2012, in the mornings from 9:00 to 10:00. For collecting, entomological nets were used to beat the vegetation in or Volume 11|Number 1 | Article 1552 Argentina ry Uruguay 7 iy ¥ 2 Kirst et al. | Sciomyzidae species from Rio Grande do Sul, Brazil . Va ct a , dl 7 ml © = es het. ike —- Rio Grande do Sul 4 _ s z ee ‘ 3 ‘ ee Ct oe Py te ; se eo A on wt. : oer a Ze ae : aie +. » s 7 uf ad , ae & ae 2 +t oe 7 al an : 9 * Figure 1. Map of Rio Grande do Sul with points of collection; blue circle = collection sites, red diamond = collection sites with new records. Table1. Points, equivalent to collecting sites with coordinates and collectors. Point ONDA UN BPWHN Municipalities Torres Torres Arroio do Sal Porto Alegre Barra do Ribeiro Tavares Camaqua Pelotas Pelotas Pelotas Pelotas Pelotas Pelotas Pelotas Pelotas Pelotas Pelotas Rio Grande Rio Grande Rio Grande Rio Grande Rio Grande Rio Grande Rio Grande Rio Grande Rio Grande Rio Grande Rio Grande Rio Grande © Check List | www.biotaxa.org/cl Locality Guarita Park Itapeva lagoon RS-389 highway ReBio Lami Guaiba Lake Lagoa do Peixe N. P. Pacheca village Corrientes district Corrientes district Arroio Pelotas river Arroio Pelotas river Arroio Pelotas river Arroio Pelotas river Cotovelo road Cotovelo road Arroio Pelotas river Arroio Pelotas river Taim E. S. Taim E. S. Taim E. S. Taim E. S. Taim E. S. Taim E. S. Taim E. S. Taim E. S. Taim E. S. Taim E. S. Taim E. S. Taim E. S. Latitude 29°21'21"S 29°22'49"S 29°27'50"S 30°14'11"S 30°18'15"S 31°03'20"S 31°07'23"S 31°33'24"S 31°33'51"S 31°37'40"S 31°37'53"S 31°38'54"S 31°39'05"S 31°40'12"S 31°40'20"S 31°43'18"S 31°43'21"S 32°32'04"S 32°32'06" S 32°32'24"S 32°32'29"S 32°32'36"S 32°33'02"S 32°33'18"S 32°33'22"S 32°33'42"S 32°33'45"S 32°33'46"S 32°35'49"S Longitude 49°44'08" W 49°47'19" W 49°50'41" W 51°06'20" W 51°17'37" W 50°48'39" W 51°47'13" W 52°08'44" W 52°08'11" W 52°21'10" W 52°16'59" W 52°16'02" W 52°15'50" W 52°13'06" W 52°13'01" W 52°15'15" W 52°15'13" W 52°31'42" W 52°31'45" W 52°32'14" W 52°32'22" W 52°31'58" W 52°30'52" W 52°31'04" W 52°31'18" W 52°30'35" W 52°30'27" W 52°30'35" W 52°34'06" W Collectors A. Z. Silva, F. D. Kirst, R. F. Kriger A. Z. Silva, F. D. Kirst, R. F. Kriger A. Z. Silva, F. D. Kirst, R. F. Kriiger F. D. Kirst, R. F. Kruger F. D. Kirst, R. F. Kruger F. D. Kirst, R. F. Kruger F. D. Kirst, R. F. Kruger F. D. Kirst, R. F. Kruger F. D. Kirst, R. F. Kruger F. D. Kirst, R. F. Kruger F. D. Kirst, R. F. Kruger F. D. Kirst, R. F. Kruger F. D. Kirst, R. F. Kruger F. D. Kirst, R. F. Kruger F. D. Kirst, R. F. Kruger F. D. Kirst, R. F. Kruger F. D. Kirst, R. F. Kruger A. Z. Silva, F. D. Kirst, R. F. Kruger A. Z. Silva, F. D. Kirst, R. F. Kriger F. D. Kirst, S. K. Cunha A. Z. Silva, F. D. Kirst, R. F. Kriger F. D. Kirst, S. K. Cunha A. Z. Silva, F. D. Kirst, R. F. Kriiger F. D. Kirst, S. K. Cunha F. D. Kirst, S. K. Cunha A. Z. Silva, F. D. Kirst, R. F. Kriger A. Z. Silva, F. D. Kirst, R. F. Kriiger A. Z. Silva, F. D. Kirst, R. F. Kriiger A. Z. Silva, F. D. Kirst, R. F. Krier Volume 11 | Number 1 | Article 1552 Kirst et al. | Sciomyzidae species from Rio Grande do Sul, Brazil around swamps. Additionally, Malaise traps (model as used by Townes 1972) with modifications in the collecting vial (see Townes 1972; Brown 2005; Duarte et al. 2010) were left in the field for 8 d. Collecting vials and specimens collected with nets were taken to the Laboratory of Ecology of Parasites and Vectors of the Universidade Federal de Pelotas. After sorting and preparation of the material, specimens of Sciomyzidae were identified in the laboratory with the aid of entomological keys and descriptions by Steyskal and Knut- son (1975), Steyskal (1974), Freidberg et al. (1991), Marinoni and Knutson (1992), Marinoni et al. (2003), and Marinoni and Mathis (2006). Voucher specimens are deposited in the entomological collection Padre Jesus Santiago Moure, Department of Zoology, Universidade Federal do Parana. Specimens were databased in the Projeto Taxonline—Rede Paranaense de Colecées Bioldégicas Table 2. List of species collected with entomological net by date of collec- tion. Where: N = Number of specimens collected; Point= collecting locality referred to in Table 1. Taxonomic units (TUs) N Date Locality Point Dictyodes dictyodes 2 11.xii.2011 Taim E. S. 23 Perilimnia albifacies 3 06.xi.2011 Corrientes district 9 2 30.xii.2011 Taim E. S. 20 Pherbellia sp. 1 1 29.xii.2011 Taim E. S. 24 Pherbellia sp. 2 1 02.xi.2011 Cotovelo road 14 1 03.xi.2011 Arroio Pelotas 13 river 1 11.xii.2011 Taim E. S. 21 29.xii.2011 Taim E. S. 24 Protodictya guttularis 4 02.xi.2011 Cotovelo road 14 11 08.xi.2011 Corrientes district 9 1 11.xii.2011 Taim E. S. 21 23 12.xii.2011 Taim E. S. 18 50 29.xii.2011 Taim E. S. 24 4 29.xii.2011 Taim E. S. 25 14 13.xii.2011 Taim E. S. 23 60 30.xii.2011 Taim E. S. 20 12 30.xii.2011 Taim E. S. 22 Protodictya lilloana 9 02.xi.2011 Cotovelo road 14 1 08.xi.2011 Corrientes district 9 1 12.xii.2011 Taim E. S. 18 2 17.i.2012 Itapeva lagoon 2 Sepedomerus 1 24.xi.2011 Guaiba lake 5 bipuncticeps Sepedonea giovana 1 25.xi.2011 Pacheca village 7 1 16.1.2011 RS-389 highway 3 Sepedonea trichotypa 1 02.xi.2011 Cotovelo road 14 1 03.xi.2011 Arroio Pelotas 13 river 1 08.xi.2011 Corrientes district 7 25.xi.2011 Pacheca village 1 28.xi.2011 ReBio Lami 4 1 11.xii.2011 Taim E. S. 21 6 12.xii.2011 Taim E. S. 18 30 29.xii.2011 Taim E. S. 24 6 29.xii.2011 Taim E. S. 25 9 13.xii.2011 Taim E. S. 23 3 30.xii.2011 Taim E. S. 20 1 30.xii.2011 Taim E. S. 22 4 17.i.2012 Itapeva lagoon 2 © Check List | www.biotaxa.org/cl (www.taxonline.ufpr.br). A total of 304 sciomyzids were captured. Eight genera and 11 species were identified. Most specimens were captured with entomological net (n=278; Table 2) and the remaining with Malaise traps (n=26; Table 3). The following species were present: Dictyodes dictyodes (Wiedemann, 1830), Perilimnia albifacies Becker, 1919, Protodictya guttularis (Wiedemann, 1830), Protodictya iguassu Steyskal, 1950, Protodictya lilloana Steyskal, 1953, Sepedomerus bipuncticeps (Malloch, 1933), Sepe- donea giovana Marinoni & Mathis, 2006, Sepedonea trichotypa Freidberg, Knutson & Abercrombie, 1991 and Thecomyia late- ralis (Walker, 1858). Additionally, two morphospecies of Pherbellia Robineau-Desvoidy were identified. Pherbellia is classified in the Sciomyzini and the remaining species in the Tetanocerini (Marinoni and Mathis 2000). Among the species collected, seven are classified in the same behavioral group by Knutson and Vala (2011). They are: Dictyodes dictyodes, Sepedomerus bipuncticeps, Protodictya lillo- ana, P. guttularis, Sepedonea giovana and Sepedonea trichotypa. According to the authors, these species are “predators of non- operculate snails at or just below the water surface, just above the surface on emergent vegetation, and occasionally those exposed on moist surfaces.” Our collecting areas are typical habitats of Sciomyzidae: marshes and wet meadows (Neff and Berg 1966). These areas are not disturbed and their substrate is not very modified. Areas with altered soil are not attractive to sciomyzids (Knut- son and Vala 2011). Adult sciomyzids are not attracted by flowers, and there is little information about which kinds of vegetation they prefer (Knutson and Vala 2011). Few specimens are collected Table 3. List of species collected with Malaise trap by date of collection; N = number of specimens collected; Point= collecting locality referred to in Table 1. Taxonomic units (TUs) N Date Locality Point Dictyodes dictyodes 1 09-16.xii.2011 TaimE. S. 26 1 09-16.xii.2011 TaimeE. S. 28 1 09-16.xii.2011 TaimE. S. 27 Pherbellia sp. 2 2 28.x-05.xi.2011 Arroio Pelotas 11 river 1 09-16.xii.2011 TaimeE. S. 29 Protodictya guttularis 3 27.x-04.xi.2011 Cotovelo road 16 1 28.x-05.xi.2011 Corrientes district 8 Protodictya iguassu 1 27.x-04.xi.2011 Arroio Pelotas 16 river 2 27.x—04.xi.2011 Arroio Pelotas 17 river 1 27.x-04.xi.2011 Cotovelo road 15 2 28.x-05.xi.2011 Arroio Pelotas 10 river 1 28.x-05.xi.2011 Arroio Pelotas 11 river 1 28.x-05.xi.2011 Arroio Pelotas 12 river 1 09-16.xii.2011 TaimE. S. 27 1 09-16.xii.2011 TaimE. S. 19 1 03-11.ii.2012 | Lagoa do Peixe 6 N. P. Protodictya lilloana 1 27.x-04.xi.2011 Arroio Pelotas 16 river Thecomyia lateralis 4 14-22.1.2012 Guarita Park 1 Volume 11 | Number 1 | Article 1552 Kirst et al. | Sciomyzidae species from Rio Grande do Sul, Brazil by Malaise traps (Marinoni et al. 2004; Knutson and Carvalho 1989), making net sweeping the best collecting method for these flies. Most specimens are collected while sweeping the vegeta- tion surrounding the water bodies inhabited by mollusks. The fact that sciomyzid adults are solitary and fly short distances may explain why they usually do not show up in Malaise. Protodictya, in our samples, was represented by the greatest number of species (three). The most abundant was P. guttularis, with 179 individuals collected with nets and four with traps (n=183). One of the species collected using Malaise traps, P. iguassu, was not represented in net samples. The distribution of this species, formerly restricted to the Brazilian states of Parana and Santa Catarina, is now extended to Rio Grande do Sul. Protodictya iguassu also occurs in Paraguay and Argentina (records for Misiones and Buenos Aires, respectively). Protodictya is exclusively Neotropical and includes eight species (Marinoni and Knutson 1992). Abercrombie (1970) investigated the biology of P guttularis and P. lilloana in the laboratory. According to him, “Larvae of P. guttularis are vora- cious feeders on aquatic snails and seem well adapted to life at the surface film with their long posterior lobes.” Abercrombie (1970) collected specimens in almost all months of the year, except for November, indicating that P. guttularis is active year-round. After Protodictya guttularis, the most abundant species was Sepedonea trichotypa. All individuals (n=71) were collected by net sweeping. Sepedonea is exclusively Neotropical, and cur- rently includes 13 species. Abercrombie (1970) also studied the biology of the genus species. Dictyodes, with two species distributed in the Neotropical region (Steyskal 1974), was represented in our samples by D. dictyodes, (n=5) which was captured with Malaise and net. Sepedomerus bipuncticeps was collected in the municipality of Barra do Ribeiro, at the margins of the Guaiba Lake (n=1). This species was previously known from Panama to Argen- tina, including Brazil (Knutson et al. 1976). The other species of the genus are not recorded from Brazil. Sepedomerus mac- ropus (Walker, 1849), is distributed from south of United States to Peru, while Sepedomerus caeruleus (Melander, 1920), is restricted to Caribbean islands. Species of Pherbellia can be parasitoids or predators. The genus is distributed worldwide and the included species are classified in different behavioral groups by Knutson and Vala (2011). We collected two species, one with Malaise trap and one with a net. In our survey, Thecomyia lateralis was present in Malaise traps set in Torres, northern littoral of Rio Grande do Sul. Most species of Thecomyia occur in Central America, and south of it up to the southern state of Santa Catarina. The- comyia lateralis reaches the southernmost portion of Brazil, and after this work, its distribution has been extended to Rio Grande do Sul. In the northern hemisphere the greatest diversity of Scio- myzidae is observed in temperate areas (Berg and Knutson 1978). So, in addition to these two new records for the Rio Grande do Sul, we believe that more species will be found with increased sampling effort. In addition, these species are predators of non-operculate snails in freshwater, which is their developmental environ- ment. Species of this group of mollusks can be vectors of © Check List | www.biotaxa.org/cl diseases such as fasciolosis and schistossomiasis. A greater knowledge of the sciomyzid species and their habitats and biology is of great importance for their potential future use as controllers of vectors. ACKNOWLEDGEMENTS We thank CNPq for the Ph.D. scholarship awarded to the first author, and for financing the project Diptera da Plani- cie Costeira do Rio Grande do Sul (DIPLAN) (process no. 473949/2010-5). We also thank Msc. Andrio Zafalon Silva and Biologist Samuel Kabke Cunha for their dedicated help in the field, and the administration of the conservation units where collecting was conducted. This is contribution number 1915 of the Departamento de Zoologia, Universidade Federal do Parana. LITERATURE CITED Abercrombie, J. 1970. Natural history of snail-killing flies of South America (Diptera: Sciomyzidae: Tetanocerini) [Ph.D. thesis]. Ithaca, NY: Cornell University. 344 pp. Barker, G.M., L. Knutson, J.-C. Vala, J.B. Coupland and J.K. Barnes. 2004. Overview of the biology of marsh flies (Diptera: Sciomyzidae), with special reference to predators and parasitoids of terrestrial gastropods; pp. 159-225, in: Barker G.M. (ed.). Natural enemies of terrestrial molluscs. Wallingford: CABI Publishing. Berg, C.O. and L.V. Knutson. 1978. Biology and systematics of the Sciomyzidae. Annual Review Entomology 23: 239-258. doi: 10.1146/annurev.en.23.010178.001323 Brown, B.V. 2005. Malaise trap catches and the crisis in Neotropical dipterology. American Entomologist 513: 180-183. http://www. entsoc.org/PDF/Pubs/Periodicals/AE/AE-2005/Fall/Brown.pdf Coupland, J. and G. Baker. 1995. The potential of several species of terrestrial Sciomyzidae as biological control agents of pest helicid snails in Australia. Crop Protection 14: 573-576. doi: 10.1016/0261-2194(95)00060-7 Duarte, J.L.P., R.F. Kriiger, C.J.B. de Carvalho and P.B. Ribeiro. 2010. Evidence of the influence of Malaise trap age on its efficiency in the collection of Muscidae (Insecta, Diptera). International Journal of Tropical Insect Science 30: 115-118. doi: 10.1017/ S1742758410000093 Freidberg, A., L. Knutson and J. Abercrombie. 1991. A revision of Sepedonea, a Neotropical genus of snail-killing flies (Diptera: Sciomyzidae). Smithsonian Contributions to Zoology 506: 1-48. doi: 10.5479/si.00810282.506 Knutson, L.V. 1987. Sciomyzidae, pp. 927-940, in: McAlpine, J.F. Manual of Neartic Diptera 2. Ottawa: Biosystematics Research Centre. http://esc-sec.ca/aafcmonographs/manual_of_nearctic_ diptera_vol_2.pdf Knutson, L.V. and C.J.B. de Carvalho. 1989. Seasonal distribution of a relatively rare and a relatively common species of Thecomyia at Belém, Para, Brazil (Diptera, Sciomyzidae). Memorias do Instituto Oswaldo Cruz 84: 287-289. doi: 10.1590/S0074- 02761989000800050 Knutson, L.V., G.C. Steyskal, J. Zuska and J. Abercrombie. 1976. 64. Family Sciomyzidae; pp. 24, in: Papavero, N. (ed.), A catalogue of the Diptera of the Americas south of the United States. Sao Paulo: Museu de Zoologia da Universidade de Sao Paulo. Knutson, L.V. and J.-C. Vala. 2002. An evolutionary scenario of Sciomyzidae and Phaeomyiidae (Diptera). Annales de la Société Entomologique de France (n.s.) 38: 145-162. Knutson, L.V.and J.-C. Vala. 2011. Biology of snail-killing Sciomyzidae flies. New York: Cambridge University Press. 526 pp. Marinoni, L. and L.V. Knutson. 1992. Reviséo do género Neotropical Protodictya Malloch, 1933 (Diptera, Sciomyzidae). Revista Volume 11 | Number 1 | Article 1552 Kirst et al. | Sciomyzidae species from Rio Grande do Sul, Brazil Brasileira de Entomologia 36: 25-45. Marinoni, L., M. Zumbado and L.V. Knutson. 2004. A New genus and a new species of Sciomyzidae from Neotropical Region. Zootaxa 540: 1-7. http://www.mapress.com/zootaxa/2004f/zoo0540f.pdf Marinoni, L. and W.N. Mathis. 2000. A cladistic analysis of Sciomyzidae Fallén (Diptera). Proceedings of Biological Society of Washington 113: 162-209. http://www.biodiversitylibrary. org/page/35459986 Marinoni, L. and W.N. Mathis. 2006. A cladistic analysis of the Neotropical genus Sepedonea Steyskal (Diptera: Sciomyzidae). Zootaxa 1236: 37-52. http://www.mapress.com/zootaxa/2006f/ zto1236po52.pdf Marinoni, L., G.C. Steyskal and L. Knutson. 2003. Revision and cladistic analysis of the Neotropical genus Thecomyia Perty (Diptera: Sciomyzidae). Zootaxa 191: 1-36 http://www.mapress. com/zootaxa/2003f/zoo191f.pdf MMA (Ministério do Meio Ambiente). 2000. Avaliacdo e acées prioritarias paraa conserva¢ao da Biodiversidade da Mata Atlantica e Campos Sulinos. Brasilia: Ministério do Meio Ambiente/ Secretaria de Biodiversidade e Florestas. 40 pp. Accessed at http://www. mma.gov.br/estruturas/sbf_chm_rbbio/_arquivos/Sumario%20 Mata%2oAtlantica.pdf, 24 November 2014. Neff, S.E. and C.O. Berg. 1966. Biology and immature stages of malacophagous Diptera of the genus Sepedon (Sciomyzidae). Bulletin of Agricultural Experiment Station, Virginia Polytechnic Institute 556: 1-113. © Check List | www.biotaxa.org/cl Pires, A.C. and L. Marinoni. 2011. Distributional patterns of the Neotropical genus Thecomyia Perty (Diptera, Sciomyzidae) and phylogenetic support. Revista Brasileira de Entomologia 55: 6-14. doi: 10.1590/S0085-56262011000100002 Steyskal, G.C. 1974. The genus Dictyodes Malloch (Diptera: Sciomyz- idae). Proceedings of Entomological Society of Washington 75: 427-430. http://www.biodiversitylibrary.org/page/16291101 Steyskal, G.C. and L. Knutson. 1975. Key to the genera of Sciomyz- idae (Diptera) from the Americas South of the United States, with descriptions of two new genera. Proceedings of the Entomological Society of Washington 77: 274-277. http://www. biodiversitylibrary.org/page/16310924 Townes, H.A. 1972. A light-weight Malaise trap. Entomological News 83: 239-247. http://www. biodiversitylibrary.org/item/20640 Vala, J.-C., L. Knutson and C. Gasc. 1999. Stereoscan studies with descriptions of new characters of the egg and larval instars of Salticella fasciata (Meigen) (Diptera: Sciomyzidae). Journal of Zoology, London 247: 531-536. http://journals.cambridge.org/ article_So952836999004100 Authors’ contribution statement: FDK and RFK collected the data, FDK and LM wrote the text, FDK built the map. Received: May 2014 Accepted: November 2014 Editorial responsibility: Jonas da Silva Dége Volume 11 | Number 1 | Article 1552