The genus Cyclocephala Dejean (Coleoptera: Scarabaeidae: Dynastinae) in Brazil: diversity and spatio-temporal distribution

Gonçalves, Jacqueline Aguiar; Grossi, Paschoal Coelho; Togni, Pedro Henrique Brum; Oliveira, Charles Martins de; Frizzas, Marina Regina

doi:10.1007/s10841-020-00230-6

Cited by 7 publications

(12 citation statements)

References 43 publications

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“…Thus, it is unlikely that the relationship of C. paraguayensis with these flowers is specific. Besides, floral preferences by Cyclocephala species may reflect in gregarious distribution; once C. paraguayensis beetles are widely distributed in Brazil [22], we surmise they exploit broader odor components than other Cyclocephala species with mutualistic PLOS ONE floral interaction. Possibly, C. paraguayensis represents a case of beetle acquiring preference for certain floral odors by its feeding habit during the larval stage; and/or it approaches these flowers when few or no cantharophilous species are in anthesis [15].…”

Section: Discussionmentioning

confidence: 90%

“…Piracicaba comprises the biome Atlantic Rain Forest, which has been observed to harbor small and scattered populations of C. paraguayensis. Conversely, Cassilândia is located in the biome Cerrado, which appears to sustain a higher population of this species [22].…”

Section: Discussionmentioning

confidence: 99%

“…paraguayensis . Conversely, Cassilândia is located in the biome Cerrado, which appears to sustain a higher population of this species [ 22 ].…”

Section: Discussionmentioning

confidence: 99%

“…Besides, floral preferences by Cyclocephala species may reflect in gregarious distribution; once C . paraguayensis beetles are widely distributed in Brazil [ 22 ], we surmise they exploit broader odor components than other Cyclocephala species with mutualistic floral interaction. Possibly, C .…”

Section: Discussionmentioning

confidence: 99%

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(3S,6E)-nerolidol-mediated rendezvous of Cyclocephala paraguayensis beetles in bottle gourd flowers

Favaris

Túler²,

Silva³

et al. 2020

PLoS ONE

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Cyclocephalini beetles of the genus Cyclocephala (Coleoptera: Melolonthidae: Dynastinae) use flowers of some plants as food, shelter, and mating sites. However, little is known about floral scent chemistry involved in this interaction. Here we show that a sesquiterpene alcohol mediates attraction of Cyclocephala paraguayensis Arrow, on bottle gourd flowers, Lagenaria siceraria (Cucurbitaceae). Both males and females started to aggregate on the flowers at twilight; after that, mating began and remained for the entire night. GC-FID/EAD analysis of the L. siceraria floral scent collected in the field revealed that only the major constituent of the airborne volatiles elicited electroantennographic responses on male and female antennae of C. paraguayensis. This compound was identified as (3S,6E)-nerolidol, which was tested in two field trapping trials in Brazil. In the first bioassay, traps baited with nerolidol (mix of isomers) captured significantly more adult C. paraguayensis than control traps. In the second field trial, catches in traps baited with a mixture of isomers or enantiopure nerolidol were significantly higher than captures in control traps, but the treatments did not differ significantly. Analysis from the gut content of adult C. paraguayensis showed the presence of pollen, suggesting that they also use bottle gourd flowers for their nourishment. Taken together, these results suggest that (3S,6E)-nerolidol plays an essential role in the reproductive behavior of C. paraguayensis by eliciting aggregation, mating, and feeding.

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Section: Discussionmentioning

confidence: 90%

Section: Discussionmentioning

confidence: 99%

“…paraguayensis . Conversely, Cassilândia is located in the biome Cerrado, which appears to sustain a higher population of this species [ 22 ].…”

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

See 2 more Smart Citations

(3S,6E)-nerolidol-mediated rendezvous of Cyclocephala paraguayensis beetles in bottle gourd flowers

Favaris

Túler²,

Silva³

et al. 2020

PLoS ONE

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“…Coleoptera studies have used different sampling methods, for example light trap, pheromone, fermented bait, malaise trap, flight interception traps and pitfalls (Ganho and Marinoni, 2003;Silva et al, 2017a;Gonçalves et al, 2020;Puker et al, 2020;Evangelista et al, 2021;Oliveira et al, 2021), and more than one method is often used in a complementary way. However, since many Coleoptera are phototropic, light traps have been one of the main collection methods for studies aimed at evaluating adult diversity (Miyazaki and Dutra, 1995;Freitas et al, 2002;Jocque et al, 2016;Gonçalves et al, 2020). Thus, the objective of this study was to evaluate the seasonality and distribution of Coleoptera families in an area of the Cerrado biome in the Federal District (DF) of Brazil, using light trap.…”

Section: Introductionmentioning

confidence: 99%

Seasonality and distribution of Coleoptera families (Arthropoda, Insecta) in the Cerrado of Central Brazil

Oliveira

Specht

et al. 2021

Rev. Bras. entomol.

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Biometric variability of inflorescence and flower traits among ex situ accessions of the neotropical oilseed palm Acrocomia Mart.

Meyer,

Hilger,

Kuki

et al. 2024

Ecology and Evolution

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The oilseed palm genus Acrocomia is suitable for sustainable oil production in South America. The high phenotypic diversity of wild populations poses a challenge for the delimitation of the genus. Comparing the inflorescence architecture, a first‐order panicle, and staminate and pistillate flower traits could be a valuable tool in resolving the taxonomic disarray. Thus, this study aims to characterize the differences in the inflorescence architecture and floral structures of three common and economically significant Acrocomia species: A. aculeata, A. totai, and A. intumescens. Biometric traits of the inflorescence architecture and floral structures of various Acrocomia accessions in an ex situ germplasm collection in Brazil were assessed. The unweighted pair group method with arithmetic mean (UPGMA) cluster analysis based on the Gower distance was used to measure dissimilarities between the individual plants of the accessions. To our best knowledge, this study provides the first evidence of the presence of second‐order rachillae in the genus Acrocomia. Evaluated traits showed a high level of variation within and between accessions, emphasizing the phenotypic diversity of the genus. The accessions of A. totai were distinguishable from those of the other two species by their inflorescence architecture and flower traits. The dissimilarities between A. aculeata and A. intumescens were not sufficient to differentiate both. In conclusion, the quantitative assessment of inflorescence and floral traits is a valuable tool for taxonomic resolution of the genus.

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The genus Cyclocephala Dejean (Coleoptera: Scarabaeidae: Dynastinae) in Brazil: diversity and spatio-temporal distribution

Cited by 7 publications

References 43 publications

(3S,6E)-nerolidol-mediated rendezvous of Cyclocephala paraguayensis beetles in bottle gourd flowers

(3S,6E)-nerolidol-mediated rendezvous of Cyclocephala paraguayensis beetles in bottle gourd flowers

Seasonality and distribution of Coleoptera families (Arthropoda, Insecta) in the Cerrado of Central Brazil

Biometric variability of inflorescence and flower traits among ex situ accessions of the neotropical oilseed palm Acrocomia Mart.

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