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O gênero Orius Wolff é composto por espécies de percevejos predadores, principalmente de tripes, encontradas em muitos ecossistemas naturais e manejados. Entretanto, as interações que podem ocorrer entre esses predadores e suas presas no mesmo "habitat" não são bem conhecidas entre as espécies das regiões tropicais. Este estudo teve como objetivo registrar a interação de espécies de Orius e de tripes coletadas na mesma planta, ou seja, presentes no mesmo "habitat". As coletas foram feitas em várias plantas cultivadas, no campo e em casas de vegetação e em plantas invasoras. A forma e o grau de associação entre as espécies foram determinados, utilizando-se o coeficiente de Spearman (R), calculado com dados de presença/ausência das espécies (Orius e tripes) no mesmo "habitat". Orius insidiosus (Say) foi encontrado associado positivamente aos tripes Frankliniella sp., Neohydatothrips sp. e Haplothrips gowdeyi (Franklin) e negativamente associado a Frankliniella schultzei (Trybom) e Caliothrips phaseoli (Hood). Orius thyestes Herring e Orius sp1 ocorreram simultaneamente em 10 espécies de tripes sem, contudo, apresentar associação significativa, enquanto Orius perpunctatus (Reuter) esteve associado positivamente às espécies Frankliniella sp. e Neohydatothrips sp. e, negativamente, a Frankliniella gemina (Moulton). The genus Orius Wolff comprise species that are mostly thrip predators , in natural and managed ecosystems. Interactions between Orius species and its preys in the same habitat in tropical areas are not well known. The objective of this research was to record the interactions between Orius and thrips species present in the same habitat. Sampling on crops and weeds were conducted in the field and greenhouse conditions. The association level between Orius and thrips species was evaluated by Spearman coefficient (R) (presence/absence of the species in the same habitat). Orius insidiosus (Say) was found positively associated with Frankliniella sp., Neohydatothrips sp. and Haplothrips gowdeyi (Franklin), and negatively associated with Frankliniella schultzei (Trybom) and Caliothrips phaseoli (Hood). Orius thyestes Herring and Orius sp1 coexist with 10 thrips species, but no significant association was found between those predators and thrips species. Orius perpunctatus (Reuter) was found positively associated with Frankliniella sp. and Neohydatothrips sp., and negatively associated with Frankliniella gemina (Moulton)

Percevejos predadores (Orius spp.) (Hemiptera: Anthocoridade) e tripes (Thysanoptera): interação no mesmo habitat?