New molecular data on subcutaneous Philornis (Diptera: Muscidae) from southern South America suggests the existence of a species complex

Autores/as

  • Martín A. Quiroga Laboratorio de Ecología de Enfermedades, Instituto de Ciencias Veterinarias del Litoral (ICIVET-Litoral), Universidad Nacional del Litoral - Consejo Nacional de Investigaciones Científicas y Tecnológicas (UNL-CONICET), Esperanza, Argentina
  • Lucas D. Monje Laboratorio de Ecología de Enfermedades Instituto de Ciencias Veterinarias del Litoral (ICIVET Litoral) Universidad Nacional del Litoral - Consejo Nacional de Investigaciones Científicas y Técnicas http://orcid.org/0000-0002-9304-3653
  • Juan P. Arrabal Instituto Nacional de Medicina Tropical, Ministerio de Salud de la Nación, Puerto Iguazú, Argentina
  • Pablo M. Beldomenico Laboratorio de Ecología de Enfermedades, Instituto de Ciencias Veterinarias del Litoral (ICIVET-Litoral), Universidad Nacional del Litoral - Consejo Nacional de Investigaciones Científicas y Tecnológicas (UNL-CONICET), Esperanza, Argentina

DOI:

https://doi.org/10.1016/j.rmb.2016.10.018

Palabras clave:

Philornis seguyi, Philornis torquans, ITS2, Species complex, Argentina

Resumen

The taxonomic identification of species in the genus Philornis Meinert (Diptera: Muscidae) has been based primarily upon analysis of morpho-logical characters. However, relying solely on morphology has led to frequent species misidentification. This has been empirically demonstrated when specimens identified morphologically as Philornis seguyi have been reclassified as Philornis torquans based on DNA sequences of the second ribosomal internal transcribed spacer (ITS2), showing that the morphologic distinction between these 2 species is extremely challenging. Herein, new molecular data on specimens assigned to P. torquans and P. seguyi from the type locality of P. seguyi (Misiones province, Argentina) were analyzed. The ITS2 sequences obtained differed from those previously reported for Philornis, increasing to 3 the number of documented genotypes of flies morphologically indistinguishable from P. torquans. These results strongly suggest that subcutaneous Philornis spp. from southern SouthAmerica could represent a species complex (P. torquans complex).

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Publicado

2016-12-01

Número

Sección

NOTAS CIENTÍFICAS (cancelada desde 2017)