Development and predatory capacity of Chrysoperla externa (Neuroptera: Chrysopidae) larvae at different temperatures. Desarrollo y capacidad depredadora. This work aimed to elucidate the distribution of Chrysoperla externa haplotypes and investigate whether it exhibits structure based on genetic. Abstract. The dynamics of predation by the green lacewing Chrysoperla externa Hagen (Neuroptera: Chrysopidae) on Enneothrips flavens Moulton.

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The total numbers of prey consumed by the individual instars of C.

In both analyzed genes, these 34 individuals showed greater similarity to chgysoperla another than to the other groups. Fue investigado el efecto de la temperatura sobre el desarrollo y capacidad depredadora de C. Figure 4 also reveals that the daily consumption of nymphs typically increased with increasing externs.

Chrysopidae and Siphaflava Hemiptera: Although such larvae appear to be very effective, information exteena the population dynamics of the predator is very limited and this constitutes an impedi-ment to its practical application in biological control. The pre-oviposition period lasted 7. A language and environment for statistical computing.

However, the values refer to the average longevity and not the probability of survival as presented in this study, so these data should be compared with caution.

Environment stress, plant quality and abundance of cereal aphids Hom. Colors represent clusters Kinterpreted as mutational steps from an ancestral haplotype not present in the analysis.


The poor viability observed at the lowest temperature may be attributed to the high mortality observed during the pupal stage and to the reduced capacity for wing growth during the pharate stage. From Wikipedia, the free encyclopedia. Biol J Linn Soc Lond. Discussion Regarding the duration of larval instars, it was found to be higher in the present study than in previous papers in which authors fed C.

Neuropterida Species of the World. Chrysopidae larvae at different temperatures. The average hatchability was Acta Scientiarum Agronomy 27 2: Rambaut A, Drummond AJ.

Recent evolutionary history of Chrysoperla externa (Hagen ) (Neuroptera: Chrysopidae) in Brazil

For the longevity of males and females and the average daily production of eggs, we calculated, respectively, the curves of survival probability and the curve of average oviposition according to the age of the females, using the free chrysopeela R R Development Core Team For oviposition period and egg laying, Santos et al.

In order to minimize the environmen-tal impact of such chemicals, alternative control measures have been employed including biological control.

Ciencia e Agrotecnologia 28 6: Studies of the biology of C. Morales AC, Freitas S.

Chrysoperla – Wikipedia

These results demonstrate that in addition to the species of aphid, host plant influences positively or negatively the performance of its predator. Its occurrence in Brazil was first reported by Souza-Silva and Ilharco We calculated the mean and standard error for the duration and survival in each instar and for the pre-pupa and pupa, as well as for pre-oviposition periods, duration of the embryonic period chryslperla hatchability. The products were sequenced using the same primers chrysoperlz amplification conditions.


The goal of this study was to reveal the genetic structure of C. All observations chrysopsrla made daily until adult emergence. Chrysopidae alimentada com Schizaphis graminum Rondani, Hemiptera: Results The larval instars of C. A haplotype network was built using TCS v. Aphididae criado em quatro cultivares de algodoeiro.

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The Welsh onion Allium fistulosum L. Desarrollo y capacidad depredadora de Chrysoperla externa Neuroptera: Conclusions It is concluded that the aphid N.

Neotropical Entomology 33 3: Uso de graus-dia em entomologia: Fitopatologia Brasileira 26 4: This work aimed to elucidate the distribution of Chrysoperla externa haplotypes and investigate whether it exhibits structure based on genetic composition as opposed to geographic location.

Regarding the adults, males and females showed an average survival probability of Although the studies carried out to date have analyzed a sufficient number of specimens for population studies of C.

Services on Demand Article. Haplotype list of the COI gene. Eficiencia de Chrysoperla externa Hagen, Neuroptera: