Antennal morphology and sensilla of the predaceous ladybirds, Menochilus sexmaculatus and Propylea dissecta

Pervez, Ahmad; Yadav, Meena; Bozdoğan, Hakan

doi:10.14712/23361964.2020.14

Cited by 3 publications

(2 citation statements)

References 27 publications

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“…The morphology and segmentation of C. elaterii antennae are quite similar to other ladybugs described in former studies (Hao et al 2020;Sevarika et al 2020). In particular, antennae have 11 segments, as in the most Coccinellids (Hao et al 2020), clavate shape with the last segments enlarged and rich in sensilla, and there is no significant difference in shape and length between males and females, similarly to Hippodamia convergens (Hamilton et al 1999), Pseudoscymnus tsugae (Broeckling and Salom 2003) and Harmonia axyridis (Sevarika et al 2020), but different from Propylea dissecta, whose females antennae are longer than males (Pervez et al 2020).…”

Section: Antennal Morphologysupporting

confidence: 74%

Olfaction in phytophagous ladybird beetles: antennal sensilla and sensitivity to volatiles from host plants in Chnootriba elaterii

Piersanti

Saitta

Rebora

et al. 2022

Arthropod-Plant Interactions

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Olfaction and chemical ecology in phytophagous ladybird beetles have been largely ignored so far. The present paper describes for the first time basiconic, grooved, and trichoid porous olfactory sensilla on the antennae of the phytophagous ladybird Chnootriba elaterii (Epilacnini) and demonstrates the sensitivity of the antennae to Volatile Organic Compounds (VOCs) from host plants, belonging to common and less common Cucurbitaceae crops and wild species (Citrullus lanatus, Cucumis melo, Cucumis sativus, Cucurbita pepo, Cucurbita moschata, Lagenaria siceraria, Luffa cylindrica, and Ecballium elaterium). Epilachnini ladybirds are phytophagous, with adult and larvae feeding on various Cucurbitaceae, Fabaceae, and Solanaceae. Notwithstanding some species are serious pests in crops, their chemical ecology has been largely disregarded so far. The present paper discusses the ultrastructure of antennal sensilla (scanning electron microscopy-SEM) and the electroantennographic recordings (EAG) from the olfactory sensilla responding to the proposed chemicals, also considering the literature on chemical ecology and olfaction of aphidophagous ladybugs. In particular, antennal sensilla are similar to those described in predatory species but in Epilachnini they are much more numerous on the apical flagellum, probably because involved in host plant location and selection. This research can be considered a first step in developing semiochemical-based and sustainable control strategies for melon ladybird in crops.

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Section: Antennal Morphologysupporting

confidence: 74%

Olfaction in phytophagous ladybird beetles: antennal sensilla and sensitivity to volatiles from host plants in Chnootriba elaterii

Piersanti

Saitta

Rebora

et al. 2022

Arthropod-Plant Interactions

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“…The sensillum is the main allelopathic organ of the mouthparts, and sensilla are widely distributed on the mouthparts as well as antennae. They exhibit diverse functions and play crucial roles in foraging and the mate-searching process [11][12][13]. Aggregations and types of sensilla on the mouthparts are directly related to feeding habits.…”

Section: Introductionmentioning

confidence: 99%

The Microscopic Morphology of Mouthparts and Their Sensilla in the Mycophagous Ladybeetle Illeis chinensis (Coleoptera: Coccinellidae)

Wang,

Lu,

Bai

et al. 2024

Insects

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The morphological diversity of insect mouthparts is closely related to changes in food sources and diets. Research into the structures of insect mouthparts may help to establish a fundamental basis for a better understanding of insect feeding mechanisms. In this study, we examined the fine morphology of the mouthparts of Illeis chinensis using scanning electron microscopy. We paid particular attention to the types, quantities, and distribution of sensilla on the mouthparts. Our results showed that the basic components of the mouthparts of I. chinensis are the same as those in other lady beetles, i.e., the labrum, mandible, maxillae, labium, and hypopharynx. We also found structural specialization indicating adaptation to fungal feeding. On the mouthparts, there are eight kinds of sensilla and two kinds of glandular structures, including sensilla chaetica, sensilla basiconica, sensilla styloconica, sensilla coeloconica, sensilla campaniformia, sensilla placodea, sensilla digitiformia, Böhm bristles, perforated plates, and cuticular pores. This is the first time that sensilla digitiformia has been reported in ladybirds. Finally, variations in mouthparts among ladybirds with differing diets, as well as the putative functions of each of the mouthparts and sensilla, were discussed. This research can provide a reference for understanding the functions of the mouthparts in ladybird feeding behavior and thereby contribute to the development of precise insect behavior regulation and management strategies.

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Functional morphology of mouthparts and antennal sensillae of two co-generic aphidophagous ladybirds

Pervez¹,

Yadav

Bozdoğan

2022

Int J Trop Insect Sci

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Antennal morphology and sensilla of the predaceous ladybirds, Menochilus sexmaculatus and Propylea dissecta

Cited by 3 publications

References 27 publications

Olfaction in phytophagous ladybird beetles: antennal sensilla and sensitivity to volatiles from host plants in Chnootriba elaterii

Olfaction in phytophagous ladybird beetles: antennal sensilla and sensitivity to volatiles from host plants in Chnootriba elaterii

The Microscopic Morphology of Mouthparts and Their Sensilla in the Mycophagous Ladybeetle Illeis chinensis (Coleoptera: Coccinellidae)

Functional morphology of mouthparts and antennal sensillae of two co-generic aphidophagous ladybirds

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