title: Diptera of sanitary importance associated with composting of biosolids in Argentina.
abstract: OBJECTIVE
  Odorous compounds produced at the biosolids composting plant in Bariloche (NW Patagonia) attract a variety of insects, mainly belonging to the order Diptera. In order to characterize these flies, collected specimens were taxonomically identified, their community characteristics were described and their sanitary and synanthropic importance and autochthonous or introduced character were determined.
  
  
  METHODS
  Sampling was performed from October 1999 until March 2000. Adults were collected using an entomological net, and larvae and puparia were obtained from the composting material and incubated to obtain adults. Richness, abundance and sex ratio were calculated.
  
  
  RESULTS
  A total of 9 taxa of Diptera were identified: Sarconesia chlorogaster, Phaenicia sericata, Calliphora vicina, Cochliomya macellaria, Ophyra sp, Muscina stabulans, Musca domestica, Sarcophaga sp and Fannia sp. Specimens of Anthomyiidae, Acaliptratae and one larva of Eristalis tenax were also found. Ophyra sp. was the most abundant taxa. All the captured Diptera belonged to introduced taxa. Most of them are considered to be eusynanthropic and/or hemisynanthropic and have sanitary importance as they may cause myiasis and pseudomyiasis. The high number of females registered and the finding of immature stages indicated that flies can develop their complete life cycle on biosolid composting windrows.
  
  
  CONCLUSIONS
  The characterization of flies obtained in this study may be useful for defining locations of urban or semi-urban composting facilities. It also highlights the importance of sanitary precautions at such plants.
authors.affiliation: Centro Regional Bariloche, Universidad Nacional del Comahue, Bariloche, Argentina.
authors.forename: Valeria Alejandra
authors.initials: VA
authors.lastname: Labud
authors.forename: Liliana Graciela
authors.initials: LG
authors.lastname: Semenas
authors.forename: Francisca
authors.initials: F
authors.lastname: Laos
mesh_terms: D000818:Animals; D001118:Argentina; D004175:Diptera / Q000145:classification; D005260:Female; D007303:Insect Vectors / Q000145:classification; D008297:Male; D012037:Refuse Disposal