Predation of Ceraeochrysa cubana (Hagen) (Neuroptera: Chrysopidae) on Hyadaphis foeniculi (Passerini) (Hemiptera: Aphididae)

Abstract

This research aimed to evaluate the consumption of Hyadaphis foeniculi by Ceraeochrysa cubana larvae, based on the densities and developmental stages of the prey, as well as the predator searching and handling time, regarding its instar and previous feeding knowledge. In order to evaluate the predation rate, larvae of first, second and third instars of C. cubana were used, which were fed with aphids from first and second instars, from third and fourth instar, and from different instars, at three densities. For searching time and handling evaluation, green lacewing larvae were submitted to different feeding regimens: second instar larvae fed at the first instar with Anagasta kuehniella eggs; second instar larvae, fed at the first instar with H. foeniculi; third instar larvae, fed at the first and second instars with A. kuehniella eggs; third instar larvae, fed at the first instar with the eggs of A. kuehniella and at the second instar with H. foeniculi; third instar larvae, fed at the first and second instars with H. foeniculi. It can be concluded that the daily C. cubana predation rate is influenced by H. foeniculi densities and instars, but the predator searching and handling times are not influenced by the diets provided to them in their previous stages.

Trophic relationship between Chrysoperla externa (Neuroptera: Chrysopidae) and Planococcus citri (Hemiptera: Pseudococcidae) associated with rose bushes

“…The consumption of P. citri nymphs by third-instar larvae represented 81% of the total observed for the entire larval phase of the predator. These results reiterate the greater voracity of this instar about the others, as usually reported in the scientific literature for larvae of this chrysopid (Fonseca et al, 2015;Cuello et al, 2019) or other species of Chrysopidae (Elango and Sridharan, 2017;Rahman et al, 2017;Farhan et al, 2019;Moreira et al, 2019).…”

Inter - and intraspecific relationships between Macrosiphum rosae (Hemiptera: Aphididae) and Chrysoperla externa (Neuroptera: Chrysopidae)

“…The size of both prey and predator and the time of exposure between species and predator:prey ratios are criteria that can also influence the amount of prey ingested (Barbosa et al, 2008;Pacheco-Rueda et al, 2015;Gamboa et al, 2016;Elango and Sridharan, 2017;Moreira et al, 2019).…”