Antennal Structures Used in Communication by Egg Parasitoids

Romani, Roberto; Isidoro, Nunzio; Bin, Ferdinando

doi:10.1007/978-1-4020-9110-0_3

Cited by 23 publications

(40 citation statements)

References 80 publications

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“…The typical response to such cues, which are perceived through gustatory sensilla [45], is arrestment behavior followed by increased searching intensity [28,31,32,46]. These cues are not directly related to the host eggs, but because of finely tuned adaptations of the parasitoid, these cues may become quite reliable.…”

Section: Exploitation Of Indirect Versus Direct Host-related Chemicalmentioning

confidence: 99%

Chemical Ecology of Egg Parasitoids Associated with True Bugs

Conti

Colazza

2012

Psyche: A Journal of Entomology

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Parasitoids representing some 15 families of Hymenoptera develop in insect eggs; three of these families, Platygastridae (= Scelionidae), Mymaridae, and Encyrtidae, are associated with Heteroptera. Several species of heteropteran egg parasitoids are or may be important for biological pest control. Successful parasitism of insect herbivores by insect parasitoids arises through several phases of host searching, which lead female wasps to the vicinity of, or in contact with, their hosts. During the host location process, females encounter and explore a variety of stimuli, among which chemical cues (i.e., semiochemicals or infochemicals) play a pivotal role. Female parasitoids are under selection pressure to efficiently invest their limited time on the location and exploitation of host-derived stimuli. In general, the levels of reliability and detectability of a particular stimulus are inversely correlated. Female parasitic wasps adopt differing strategies to solve this dilemma. In this paper we focus on the various host selection strategies employed by heteropteran egg parasitoids and possible means whereby the chemically mediated behavior of these wasps may be exploited to enhance biological pest control.

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Section: Exploitation Of Indirect Versus Direct Host-related Chemicalmentioning

confidence: 99%

Chemical Ecology of Egg Parasitoids Associated with True Bugs

Conti

Colazza

2012

Psyche: A Journal of Entomology

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“…Sifat S. pembertoni sebagai parasitoid telur ini memberikan banyak keuntungan dalam penggunaannya sebagai musuh alami. Menurut Romani et al (2010), parasitoid telur merupakan agens hayati paling efektif dibandingkan dengan parasitoid lainnya, hal ini karena parasitoid telur dapat mengendalikan hama sebelum hama tersebut menjadi larva atau nimfa. Penggunaan parasitoid telur juga dinilai lebih menguntungkan karena parasitoid telur berukuran kecil sehingga cukup mudah dan murah untuk perbanyakan dalam skala besar di laboratorium (Wajnberg 2010).…”

Section: Pendahuluanunclassified

Biologi Scelio pembertoni Timberlake (Hymenoptera: Scelionidae) pada telur Oxya japonica (Thunberg) (Orthoptera: Acrididae)

2017

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ABSTRAKParasitoid telur, Scelio pembertoni Timberlake (Hymenoptera: Scelionidae), merupakan endoparasitoid obligat pada telur Acrididae. Inang yang sering diparasitisasi oleh S. pembertoni ialah telur Oxya japonica (Thunberg) (Orthoptera: Acrididae). Penelitian ini bertujuan untuk mengetahui perkembangan stadia larva, lama hidup, dan keperidian, serta preferensi imago S. pembertoni terhadap umur telur inang yang berbeda. S. pembertoni diperoleh dari telur O. japonica yang diambil dari pertanaman talas dan talas liar di wilayah Bogor. Fase perkembangan S. pembertoni terdiri atas telur, stadia larva instar satu dan instar dua, stadia prapupa dan pupa, dan stadia imago. Larva instar satu bertipe teleaform dan berwarna putih transparan. Larva instar dua bertipe hymenopteriform dan berwarna putih transparan. Stadia pradewasa S. pembertoni di laboratorium berkisar antara 27-33 hari, dengan periode perkembangan telur, stadia instar satu, instar dua, prapupa, dan pupa ialah 1, 80, 4,95, 4,25, 5,40, dan 12,85 hari untuk masing-masing stadia. Lama hidup betina adalah 7-17 hari, sedangkan lama hidup jantan adalah 3-11 hari. Rata-rata keperidian betina ialah 29,53 butir telur. Nisbah kelamin (jantan terhadap betina) S. pembertoni selama penelitian di laboratorium adalah 1 : 3,19. Tingkat parasitisasi dan jumlah keturunan yang dihasilkan oleh S. pembertoni lebih tinggi pada telur berumur muda daripada umur telur inang yang lebih tua. Kata kunci: belalang, parasitoid, siklus hidup, talas ABSTRACTThe egg parasitoid, Scelio pembertoni Timberlake (Hymenoptera: Scelionidae), is an obligate endoparasitoid of Acrididae. One of the hosts of S. pembertoni is the eggs of Oxya japonica (Thunberg) (Orthoptera: Acrididae). The objectives of this research were to determine the development stage of S. pembertoni, longevity and fecundity, and the preference of S. pembertoni against different host age. S. pembertoni were collected from O. japonica eggs taken from cultivated and wild taro fields in Bogor area. The life cycle of S. pembertoni consisted of egg stage, first and second instar larval stage, prepupal and pupal stage, and adult stage. The first instar larva was teleaform and transparent white. The second instar larva was hymenopteriform and transparent white. The immature stage of S. pembertoni lasted within 27-33 days under laboratory condition, and was consisted of egg development period, first instar stage, second instar stage, pre-pupal stage, and pupal stage was 1. 8, 4.95, 4.25, 5.40, and 12.85, respectively. Longevity of the adult females was 7-17 days, and longevity of the male adults was 3-11 days. The average fecundity of the females was 29.53 eggs. The sex ratio (male to female) of S. pembertoni during observation in the laboratory was 1 : 3.19. The parasitisation level and the number of offsprings produced by S. pembertoni was higher on younger host eggs than the older ones.

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“…Similar examples can be found in characters that involve antennal sensilla, which are too often classified based on superficial external morphology (Romani et al 2010). The functional mechanisms that underlie these cuticular modifications, common characters for species diagnosis in many insects, are impossible to understand without observing the innervations of the sensory cell, as well as their corresponding exocrine glands (Romani et al 2010). The internal phenome, in these cases muscle morphology and sensillar neuroanatomy, yields critical evidence that shapes our understanding of superficially equivalent structures.…”

Section: Introductionmentioning

confidence: 95%

“…Observations of the thoracic intima, however, reveal that the sulci are defined by different muscles and hence are most likely not homologous . Similar examples can be found in characters that involve antennal sensilla, which are too often classified based on superficial external morphology (Romani et al 2010). The functional mechanisms that underlie these cuticular modifications, common characters for species diagnosis in many insects, are impossible to understand without observing the innervations of the sensory cell, as well as their corresponding exocrine glands (Romani et al 2010).…”

Section: Introductionmentioning

confidence: 96%

Evolutionary phenomics and the emerging enlightenment of arthropod systematics

Deans

István

Wipfler‍

et al. 2012

Invert. Systematics

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Abstract. Published research on the diversity and evolutionary history of Arthropoda sets a high standard for data collection and the integration of novel methods. New phylogenetic estimation algorithms, divergence time approaches, collaborative tools and publishing standards, to name a few, were brought to the broader scientific audience in the context of arthropod systematics. The treatment of morphology in these studies, however, has largely escaped innovation. Lodes rich in characters too often go unexplored, phenotype concepts are published with inadequate documentation and the way observations are textualised leaves them inaccessible to a majority of biologists. We discuss these issues, using data from recent arthropod systematics publications, and offer several that stand to restore the broad utility of morphological data. Specifically, we focus on: (1) the potential of internal soft-part characters and how to integrate their observation into arthropod systematics projects through dissection and serial sectioning; (2) the importance of capturing observations in images, especially using relatively new approaches, like laser scanning confocal microscopy and three-dimensional reconstruction; and (3) the untapped potential of established knowledge representation methods, which may help make the descriptive components of arthropod systematics research more accessible to other domains.

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Antennal Structures Used in Communication by Egg Parasitoids

Cited by 23 publications

References 80 publications

Chemical Ecology of Egg Parasitoids Associated with True Bugs

Chemical Ecology of Egg Parasitoids Associated with True Bugs

Biologi Scelio pembertoni Timberlake (Hymenoptera: Scelionidae) pada telur Oxya japonica (Thunberg) (Orthoptera: Acrididae)

Evolutionary phenomics and the emerging enlightenment of arthropod systematics

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