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Revista de la Sociedad Entomológica Argentina
versión impresa ISSN 0373-5680versión On-line ISSN 1851-7471
Resumen
LILJESTHROM, Gerardo G. y AVALOS, Delia S.. New associations between Phasiinae (Diptera: Tachinidae) and Pentatomidae (Hemiptera: Heteroptera) phytophagous insects in the rolling pampa (Argentina) and description of Dallasimyia bosqi Blanchard male. Rev. Soc. Entomol. Argent. [online]. 2015, vol.74, n.3-4, pp.145-152. ISSN 0373-5680.
The relationships between Phasiinae (Diptera:Tachinidae) parasitoid flies and their Pentatomidae (Hemiptera: Heteroptera) hosts are little known in Argentina. We present new host-parasitoid associations in the rolling pampa, and describe for the first time the adult male of Dallasimyia bosqi Blanchard. Adult Hemiptera were sampled biweekly during spring-summer 2005, 2006 and 2012 in areas of natural vegetation and crops of red clover and soybean, in fields in La Plata, Magdalena and Chivilcoy counties (Buenos Aires province). The Hemiptera were reared under controlled conditions; those with parasitoid macrotype eggs stuck on the corium were kept till death, and those with no signs of parasitism were kept for up to 25-30 days. Each dead host was placed in a container with damp soil and covered with a nylon mesh. The adult parasitoids emerged were conditioned for identification. Five new associations were recorded: E. meditabunda - Cilindromyia brasiliana (Townsend) and Homogenia sp., D. furcatus - Trichopoda argentinensis (Blanchard) and Dallasimyia bosqi, and C. armigera - Trichopoda giacomellii (Blanchard) as well as the already known N. viridula - Trichopoda giacomellii. Reference collections are deposited in the Museo de La Plata, Argentina (MCNLP) and in the Museu de Zoologia da Universidade de São Paulo, Brazil (MZSP).
Palabras clave : Pentatomids; Soybean; Red clover; Parasitoids; Koinobionts.