Neotropical Entomology (2006) 35, 402-407

Roney Rodrigues-Guimarães, Ronald R. Guimarães, Raimundo W. de Carvalho, Antonio J. Mayhé-Nunes and Gonzalo E. Moya-Borja (2006)
Registro de Aphaereta laeviuscula (Spinola) (Hymenoptera: Braconidae) e Nasonia vitripennis (Walker) (Hymenoptera: Pteromalidae) como parasitóide de Cochliomyia hominivorax (Coquerel) (Diptera: Calliphoridae), no estado do Rio de Janeiro
[Records of Aphaereta laeviuscula (Spinola) (Hymenoptera: Braconidae) and Nasonia vitripennis (Walker) (Hymenoptera: Pteromalidae) as parasitoids of Cochliomyia hominivorax (Coquerel) (Diptera: Calliphoridae), in the State of Rio de Janeiro, Brazil]
Neotropical Entomology 35 (3), 402-407
Abstract: The captures occurred between January and December of 2004 in urban area in the city of Nova Iguaçu, the rural area of the city of Seropédica and in a forest area in the Biological Reserve of the Tinguá, Nova Iguaçu State of Rio de Janeiro. The total of 1,528 larvae of Cochliomyia hominivorax (Coquerel) were used as bait, 505 in the urban area, 556 in rural and the 467 in the forest one. The indices of Synantropic, Coefficient of Constancy, the risk (Odds Ratio) of parasitism between the areas was calculated, prevalence and parasitic intensity. The percentage of emergence was of 46.6%. Aphaereta laeviuscula (Spinola) was captured only in rural environment; its indices were: Synantropic I. = +50, c. constancy = 25%, prevalence = 0.72% and I. parasitic = 44.5; already Nasonia vitripennis (Walker) was captured in the areas rural and urban and the indices had been: synanthropy = +98, constancy = 58.3%, Odds Ratio = IC95% = 0,025 < µ > 0.27, P < 0,05, prevalence = 3.2% and parasitic intensity = 7.35. The risk of parasitism for N. vitripennis in urban areas is high. The occurrence of A. laeviuscula as parasitic of C. hominivorax is registered in the State of Rio de Janeiro.

As capturas ocorreram entre janeiro e dezembro de 2004 em área urbana de Nova Iguaçu; área rural de Seropédica e em área florestal na Reserva Biológica do Tinguá, Nova Iguaçu, RJ. Foram usadas 1.528 larvas de C. hominivorax como iscas, 505 na área urbana, 556 na rural e 467 na florestal. Foram calculados os índices de Sinantropia, Coeficiente de Constância, o risco (Odds Ratio) de parasitismo entre as áreas, prevalência e intensidade parasitária. O percentual de emergência foi de 46,6%. A espécie A. laeviuscula foi capturada apenas em ambiente rural, seus índices foram: sinantropia = +50, c. constância = 25%, prevalência = 0,72% e intensidade parasitária = 44,5. N. vitripennis foi capturada nas áreas rural e urbana e os índices foram: sinantropia = +98, constância = 58,3%, Odds Ratio = IC95% = 0,025 < µ > 0,27, P < 0,05, prevalência = 3,2% e intensidade parasitária = 7,35. O risco de parasitismo por N. vitripennis em áreas urbanas é alto. Registra-se a ocorrência de A. laeviuscula como parasito de C. hominivorax no estado do Rio de Janeiro.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
(original language: Portuguese)
Full text of article
Database assignments for author(s): Raimundo Wilson de Carvalho

Research topic(s) for pests/diseases/weeds:
biocontrol - natural enemies
Research topic(s) for beneficials or antagonists:
surveys/distribution/isolation

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Cochliomyia hominivorax		Brazil (south)
Nasonia vitripennis (parasitoid)	Cochliomyia hominivorax		Brazil (south)
Aphaereta laeviuscula (parasitoid)	Cochliomyia hominivorax		Brazil (south)