The coffee leaf miner, Leucoptera coffeella (Lepidoptera: Lyonetiidae): identification of the larval instars and description of male and female genitalia

Motta, Isabela; Dantas, Juliana A.; Vidal, Leonardo; Bilio, João; Pujol-Luz, José Roberto; Albuquerque, Érika Valéria Saliba

doi:10.1590/1806-9665-rbent-2020-0122

Cited by 11 publications

(6 citation statements)

References 29 publications

(32 reference statements)

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“…After emergence, adults of the same age were placed in cages, as described above. After approximately 5 days of emergence, it was possible to differentiate the males from the females ( Motta et al 2021 ) and thus assemble new cages with the above-mentioned densities of 1 male to 4 females.…”

Section: Methodsmentioning

confidence: 99%

Functional response of 3 green lacewing species (Neuroptera: Chrysopidae) toLeucoptera coffeella(Lepidoptera: Lyonetiidae)

Dami

Santos

Barbosa

et al. 2023

Journal of Insect Science

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Green lacewings (Neuroptera: Chrysopidae) are predators commonly found in coffee plantations in Brazil that can serve as important biological control agents against insect pests such as the coffee leaf miner, Leucoptera coffeella (Lepidoptera: Lyonetiidae). However, the efficacy of different lacewing species in controlling L. coffeella needs to be evaluated before they are used in augmentative biological control programs. Here, laboratory experiments were conducted to investigate the effects of the L. coffeella developmental stage on the functional response of 3 species of green lacewings: Chrysoperla externa, Ceraeochrysa cincta, and Ceraeochrysa cornuta. The attack rate, handling time, and the number of prey attacked during 24 h with different densities (1, 2, 4, 8, 16, 32, and 64 individuals) of either L. coffeella larvae or pupae were recorded for each of the 3 lacewing species. Based on logistic regression models, all 3 predators showed a Type II functional response when consuming both larvae and pupae of L. coffeella. All 3 species also had similar attack rates (0.0091 larva/h and 0.0095 pupa/h), handling times (3.5 and 3.7 h for larvae and pupae, respectively), and estimated number of prey attacked during the observation period (6.9 larvae and 6.6 pupae) for L. coffeella larvae and pupae. Therefore, our laboratory studies show that the 3 green lacewings Ch. externa, Ce. cincta, and Ce. cornuta have potential for the biological control of L. coffeella, although these results need to be confirmed under field conditions. These findings have implications for the selection of lacewings for augmentative L. coffeella biocontrol.

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Section: Methodsmentioning

confidence: 99%

Functional response of 3 green lacewing species (Neuroptera: Chrysopidae) toLeucoptera coffeella(Lepidoptera: Lyonetiidae)

Dami

Santos

Barbosa

et al. 2023

Journal of Insect Science

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“…The external male genitalia of B. somnulentella, surrounded by long cerci in the last segment, and short in its females, are similar to that reported for T. citrorrhoa (Kobayashi et al, 2015). Circuses and shape of the genitalia of B. somnulentella and the bipartite male genitalia in the eighth male abdominal segment of Leucoptera coffeella Guérin & Méneville, 1842 (Lepidoptera: Lyonetiidae) (Posada et al, 2011;Motta et al, 2021) are parameters of sexual dimorphism. A pair of elongated limbs with cerci covering the external genitalia of females in the eighth segment and the last with a tubular shape and ovipositor surrounded by apical bristles in B. somnulentella females is similar to that reported for L. coffeella (Motta et al, 2021).…”

Section: )mentioning

confidence: 99%

Sex dimorphism in pupae and adults of the specialist Ipomoea batatas defoliator Bedellia somnulentella (Lepidoptera: Bedelliidae)

Pinheiro,

Cabral,

Giordani

et al. 2024

Preprint

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Bedellia somnulentella Zeller, 1847 (Lepidoptera: Bedelliidae), a global pest of the sweet potato Ipomoea batatas, was recorded in Brazil, but morphological information on sexual dimorphism of this insect is scarce. The objective was to evaluate morphological characters of sexual dimorphism of B somnulentella pupae and adults. External structures with sexual dimorphism were not detected in the last abdominal segments of B. somnulentella pupae, but the females are heavier and could be a distinctive sex characteristic in this insect. A pair of frenulum on the hind wings of females and only one on those of males, in addition to elongated cerci and bipartite genitalia in the latter and smaller cerci involving the last abdominal segment and an ovipositor in females, differentiate sexes of B. somnulentella.

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“…Lepidopteran insects are holometabolous butterflies and moths whose life cycles comprise the egg, first to fourth instar larvae, pupa and sexually dimorphic adult [61]. According to [62], Lepidoptera is the second most diverse order (157,424 recognized species) and includes the most devastating agricultural pests in the world [63].…”

Section: Genomic Data On Lepidopteran Pestsmentioning

confidence: 99%

Current Scenario of Exogenously Induced RNAi for Lepidopteran Agricultural Pest Control: From dsRNA Design to Topical Application

Lucena-Leandro

Abreu²,

Vidal³

et al. 2022

IJMS

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Invasive insects cost the global economy around USD 70 billion per year. Moreover, increasing agricultural insect pests raise concerns about global food security constraining and infestation rising after climate changes. Current agricultural pest management largely relies on plant breeding—with or without transgenes—and chemical pesticides. Both approaches face serious technological obsolescence in the field due to plant resistance breakdown or development of insecticide resistance. The need for new modes of action (MoA) for managing crop health is growing each year, driven by market demands to reduce economic losses and by consumer demand for phytosanitary measures. The disabling of pest genes through sequence-specific expression silencing is a promising tool in the development of environmentally-friendly and safe biopesticides. The specificity conferred by long dsRNA-base solutions helps minimize effects on off-target genes in the insect pest genome and the target gene in non-target organisms (NTOs). In this review, we summarize the status of gene silencing by RNA interference (RNAi) for agricultural control. More specifically, we focus on the engineering, development and application of gene silencing to control Lepidoptera through non-transforming dsRNA technologies. Despite some delivery and stability drawbacks of topical applications, we reviewed works showing convincing proof-of-concept results that point to innovative solutions. Considerations about the regulation of the ongoing research on dsRNA-based pesticides to produce commercialized products for exogenous application are discussed. Academic and industry initiatives have revealed a worthy effort to control Lepidoptera pests with this new mode of action, which provides more sustainable and reliable technologies for field management. New data on the genomics of this taxon may contribute to a future customized target gene portfolio. As a case study, we illustrate how dsRNA and associated methodologies could be applied to control an important lepidopteran coffee pest.

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The coffee leaf miner, Leucoptera coffeella (Lepidoptera: Lyonetiidae): identification of the larval instars and description of male and female genitalia

Cited by 11 publications

References 29 publications

Functional response of 3 green lacewing species (Neuroptera: Chrysopidae) toLeucoptera coffeella(Lepidoptera: Lyonetiidae)

Functional response of 3 green lacewing species (Neuroptera: Chrysopidae) toLeucoptera coffeella(Lepidoptera: Lyonetiidae)

Sex dimorphism in pupae and adults of the specialist Ipomoea batatas defoliator Bedellia somnulentella (Lepidoptera: Bedelliidae)

Current Scenario of Exogenously Induced RNAi for Lepidopteran Agricultural Pest Control: From dsRNA Design to Topical Application

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