Life History Notes on the Sawfly Haplostegus nigricrus Conde (Hymenoptera: Pergidae) on Psidium guajava (Myrtaceae) in Minas Gerais State, Brazil

Perreyia flavipes Konow, 1899 (Pergidae: Perreyinae) is a sawfly species with gregarious larvae commonly found in open areas in southern Brazil through Uruguay and northern Argentina. The combination of highly gregarious larvae with the production of a variety of toxins in P. flavipes has led to severe cases of intoxication in a variety of livestock species. Over the years, considerable information was discovered on the larval natural history of P. flavipes; however, virtually nothing is known about the adult behavior, particularly because of its short life-span. In this study, we report on the first extensive study on the adult behavior of P. flavipes, including movement, mating (with oviposition and maternal care), and thanatosis. Our results show some unusual behavioral adaptations presented by P. flavipes, such as irregular activity behavior (i.e., deficient gait pattern), thanatosis behavior-like display, and primitive maternal care. Individual behavioral acts are described and compared among sexes, and their potential functions are discussed.

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On the Adult Behavioral Repertoire of the Sawfly Perreyia flavipes Konow, 1899 (Hymenoptera: Pergidae): Movement, Mating, and Thanatosis

Neves

Pie

2017

Neotrop Entomol

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A brief observation of morphological and behavioral similarities between the Ichneumonidae wasp Cryptanura sp. and its presumed mimic, Holymenia clavigera (Heteroptera: Coreidae), in Brazil

et al. 2013

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Some insects use wasps as a model to mimic and previous studies showed cases of Batesian mimicry involving this insect group. However, this relation is poorly known between phytophagous bugs, such as coreids, and Cryptinae ichneumonids. We found in a seasonal secondary forest in Brazil two similar insects representing different orders. The mimic seems to be Holymenia clavigera (Herbst) (Heteroptera: Coreidae) and its model, Cryptanura sp. (Hymenoptera: Ichneumonidae). This study therefore investigated similarities in morphological and behavioural aspects between H. clavigera and the wasp Cryptanura sp. Holymenia clavigera and its ichneumonid model are impressively similar in colour, size, foraging behaviour and sympatric range. The spanning movements of antennae by the coreid bug, which strongly resemble the foraging behaviour of the wasp, were observed frequently. The findings indicate strong evidences that H. clavigera is a mimic of the Ichneumonidae wasp, Cryptanura sp.

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Life History Notes on the Sawfly Haplostegus nigricrus Conde (Hymenoptera: Pergidae) on Psidium guajava (Myrtaceae) in Minas Gerais State, Brazil

Cited by 2 publications

References 22 publications

On the Adult Behavioral Repertoire of the Sawfly Perreyia flavipes Konow, 1899 (Hymenoptera: Pergidae): Movement, Mating, and Thanatosis

On the Adult Behavioral Repertoire of the Sawfly Perreyia flavipes Konow, 1899 (Hymenoptera: Pergidae): Movement, Mating, and Thanatosis

A brief observation of morphological and behavioral similarities between the Ichneumonidae wasp Cryptanura sp. and its presumed mimic, Holymenia clavigera (Heteroptera: Coreidae), in Brazil

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