12/24/2023 0 Comments Coccinellida defensive mechanismminiata for the states of Distrito Federal, Espírito Santo, Minas Gerais, Rio de Janeiro and Paraná. (2008), which record the distribution of E. The Brazilian species of Exoplectra were revised by Costa et al. The pronotum was bended downwards and the head completely inserted inside the nectary.Įxoplectra Chevrolat comprises 37 species of almost exclusive Neotropical distribution (Gordon 1985 Costa et al. miniata kept the hind legs over the plant stem and the middle and the fore legs over the border of the nectary. miniata were observed feeding on the nectar of I. 1≤) in a reforestation area, near an urban area in Nova Friburgo, Rio de Janeiro state, Brazil (22✡62 443 S, 42✣02 333 W, 1,060 m). In December of 2006, Exoplectra miniata (Germar, 1824) was observed feeding on EFN of Inga edulis Mart. In this contribution, we provide the first record of an Exoplectrini species feeding on extrafloral nectaries (EFN). For some species, pollen and nectar can represent an essential food. Analysis of the gut content of Chilocorus kuwanae (Silvestri) (Chilocorini), a natural enemy of euonymus scale, Unaspis euonymi demonstrated the presence of pollen and nectar (Nalepa et al. Such studies can also improve our knowledge on the coccinellids behavior repertoire.Īccording to Sloggett & Majerus (2000), coccinellids adopt a variety of foraging strategies to acquire resources for their survival when food is scarce, normally unused when their prey is abundant. Thus, understanding how these predators utilize these non-prey items might prove useful in improving the performance of these predators in the field. Entomophagous Coccinellidae are important agents in the biological control of agricultural and forest pests (Obrycki & Kring 1998). (2009) further corroborates the importance of a non-prey item (pollen) in the evolution of feeding strategies for predator coccinellids. These results suggest that, at least for some coccinellids, non-prey food sources might be necessary for the optimal predator's performance. However, a meta analysis by Lundgren (2009) showed that a supplement of sugar would improve the performance of some predator coccinellids. In the classical view, "alternative" food is utilized to provide sufficient energy to compensate for metabolic losses or to accumulate reserves for dormancy whenever the preferred prey, or "essential" food, is scarce (Hodek 1973 Hodek & Honk 1996). It has been recently argued that these so called "alternative" food sources might play a more important role than it was originally suggested. The exact role of these items play in the natural history of these predators is not well understood. honeydew, pollen, sap, nectar and various fungi (see Pemberton & Vandenberg 1993 Lundgren 2009). aphids, scales, psyllids and whiteflies), mites and eventually other insect larvae (Dixon 2000).ĭespite their prey of choice, most predatory coccinellids include other non-prey items in their diet (e.g. Except for the mycophagous Coccinellinae (Halyziini and Tythaspis) and the phytophagous Epilachninae, all remaining coccinellids are predators of hemipteran insects from the suborder Sternorrhyncha ( e.g. Palavras-chave: Exoplectra miniata Exoplectrini Inga edulis Leguminosae recurso alimentar.Ĭoccinellidae is a well-known beetle family, worldwide distributed and divided into six subfamilies: Coccidulinae, Coccinellinae, Scymninae, Chilocorinae, Sticholotidinae and Epilachninae (Vandenberg 2002). Este é o primeiro registro deste comportamento para Exoplectrini. foi observada em Nova Friburgo, Rio de Janeiro, Brasil. A alimentação de Exoplectra miniata (Germar) em nectários extraflorais de Inga edulis Mart. Novo registro de um coccinelídeo predador (Coleoptera, Coccinellidae) alimentando-se de nectário extrafloral. Keywords: Alimentary resources Exoplectra miniata Exoplectrini Inga edulis Leguminosae. This is the first record of this behavior for Exoplectrini. was observed in Nova Friburgo, Rio de Janeiro, Brazil. Feeding by Exoplectra miniata (Germar) on extrafloral nectaries of Inga edulis Mart. record of predatory ladybird beetle (Coleoptera, Coccinellidae) feeding on extrafloral nectaries. Universidade Federal Rural de Pernambuco, Rua Dom Manoel de Medeiros, s/n, Dois Irmãos, 52171≩00 Recife-PE, Brazil. ILaboratório de Sistemática e Bioecologia de Coleoptera (Insecta), Departamento de Zoologia, Universidade Federal do Paraná, Caixa Postal 19020, 81581≩80 Curitiba-PR, Brazil. New record of predatory ladybird beetle (Coleoptera, Coccinellidae) feeding on extrafloral nectaries
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