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Cooperband MF, Wickham JD, Warden ML. Factors Guiding the Orientation of Nymphal Spotted Lanternfly, Lycorma delicatula. Insects 2023; 14:279. [PMID: 36975964 PMCID: PMC10054470 DOI: 10.3390/insects14030279] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/23/2023] [Revised: 03/06/2023] [Accepted: 03/09/2023] [Indexed: 06/18/2023]
Abstract
A mark-release-recapture experiment was conducted to evaluate the orientation of spotted lanternfly (SLF) Lycorma delicatula White (Hemiptera: Fulgoridae) nymphs when released equidistant between two trees. The experiment was repeated weekly for eight weeks in a heavily infested area with mature tree-of-heaven Ailanthus altissima (Mill.) Swingle (Sapindales: Simaroubaceae) planted in rows as ornamental street trees in Beijing, China. One tree in each pair received a methyl salicylate lure, and the lure was rotated between trees every week as it aged. Two additional independent variables for each tree were also analyzed: size and SLF population density. Marked-released SLF significantly chose trees with higher SLF population density over trees with lower density populations, and they also chose larger trees significantly more than smaller trees. Population density and tree size were better predictors of attraction than lures, but when those factors were controlled, SLF significantly chose trees with methyl salicylate lures over control trees for the first 4 weeks of lure life. Wild SLF distribution was assessed weekly, revealing strong aggregation in first and second instars that diminished with development to the third and fourth instars. Thus, nymphal SLF aggregate, and orientation is strongly guided by the presence of other SLF and tree size.
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Affiliation(s)
- Miriam F. Cooperband
- Forest Pest Methods Laboratory, USDA—APHIS—PPQ, 1398 W. Truck Rd., Buzzards Bay, MA 02542, USA
| | - Jacob D. Wickham
- Institute of Zoology, Chinese Academy of Sciences, 1 Beichen West Rd., Beijing 100101, China
| | - Melissa L. Warden
- Forest Pest Methods Laboratory, USDA—APHIS—PPQ, 1398 W. Truck Rd., Buzzards Bay, MA 02542, USA
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Cooperband MF, Murman K. Responses of adult spotted lanternflies to artificial aggregations composed of all males or females. Front Insect Sci 2022; 2:981832. [PMID: 38468775 PMCID: PMC10926526 DOI: 10.3389/finsc.2022.981832] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Accepted: 08/22/2022] [Indexed: 03/13/2024]
Abstract
Spotted lanternflies (SLF) Lycorma delicatula are economically important invasive planthoppers discovered in North America in 2014. SLF are gregarious, but how they locate each other, or who finds whom and when, is poorly understood. Here we describe adult SLF behavior and phenology on their preferred host, Ailanthus altissima, under field conditions, in the context of both aggregation and mate-location, since SLF demonstrated aggregation prior to mating. We documented aggregation behavior of adults and found we could manipulate free-living SLF populations in both number and sex ratio by the placement of confined populations of SLF males or females on trees. Trap capture of arriving SLF was significantly higher on trees with confined SLF aggregations than on control trees, and was corroborated with photographic data, demonstrating the manipulation of attraction and aggregation behavior. Sex ratios of trapped SLF arrivals were significantly more male-biased on trees with confined males and more female-biased on trees with confined females, evidence that the male- and female-biased sex ratios observed on trees naturally can be explained by sex-specific conspecific signals. SLF sex ratios shifted over time in the same pattern over two consecutive years. A mark-release-recapture study over time found that 1) SLF behavior is density dependent and strongly influenced by natural populations, 2) released females were captured significantly more on trees with caged females, particularly prior to mating, and 3) released males were captured significantly more on trees with caged females starting at mating time. Photographic data revealed that most clustering behavior (a measure of courtship) of free-living SLF began on trees with caged females during mating time, but not on trees with caged males or controls. We describe adult male and female SLF phenology whereby 1) aggregation behavior occurs, 2) males and females arrive at different times, 3) females began to aggregate several weeks prior to mating, 4) males subsequently joined aggregations at the time of mating, and 5) aggregation continued into oviposition. Population density and aggregation behavior were found to be key factors in their natural history which can be manipulated, providing a foothold for future research. Possible mechanisms for future exploration are discussed.
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Affiliation(s)
- Miriam F. Cooperband
- Forest Pest Methods Laboratory, USDA APHIS PPQ S&T, Buzzards Bay, MA, United States
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Sevarika M, Rondoni G, Ganassi S, Pistillo OM, Germinara GS, De Cristofaro A, Romani R, Conti E. Behavioural and electrophysiological responses of Philaenus spumarius to odours from conspecifics. Sci Rep 2022; 12:8402. [PMID: 35589785 PMCID: PMC9120500 DOI: 10.1038/s41598-022-11885-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Accepted: 04/21/2022] [Indexed: 11/09/2022] Open
Abstract
The meadow spittlebug, Philaenus spumarius L. (Hemiptera: Auchenorrhyncha: Aphrophoridae), is the main vector of Xylella fastidiosa subsp. pauca strain ST53, the causal agent of the Olive Quick Decline Syndrome. Philaenus spumarius and other Auchenorrhyncha are known to communicate via vibrations, whereas the possible occurrence of semiochemical communication has been poorly investigated so far. Through a chemical ecology approach, we provide evidence of intraspecific chemical communication in P. spumarius. In Y-tube olfactometer bioassays, males were attracted to unmated females as well as toward the headspace volatile extracts collected from unmated females. Conversely, females did not respond to unmated male volatiles or their extracts, nor did males and females respond to volatiles from individuals of the same sex. Electroantennography assays of unmated male and female headspace extracts elicited measurable responses in the antennae of both sexes. Male responses to body wash extracts from both sexes were stronger compared to female responses. Thus, suggesting the presence of compounds that are highly detected by the male's olfactory system. The female head seemed to be the source of such compounds. This is the first record of intraspecific chemical communication in P. spumarius and one of the very few records in Auchenorrhyncha. Possible biological roles are under investigation.
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Affiliation(s)
- Milos Sevarika
- Department of Agricultural, Food and Environmental Sciences, University of Perugia, 06121, Perugia, Italy
| | - Gabriele Rondoni
- Department of Agricultural, Food and Environmental Sciences, University of Perugia, 06121, Perugia, Italy.
| | - Sonia Ganassi
- Department of Agricultural, Environmental and Food Sciences, University of Molise, 86100, Campobasso, Italy
| | - Onofrio Marco Pistillo
- Department of Agriculture, Food, Natural Resources and Engineering, University of Foggia, 71122, Foggia, Italy
| | | | - Antonio De Cristofaro
- Department of Agricultural, Environmental and Food Sciences, University of Molise, 86100, Campobasso, Italy.
| | - Roberto Romani
- Department of Agricultural, Food and Environmental Sciences, University of Perugia, 06121, Perugia, Italy
| | - Eric Conti
- Department of Agricultural, Food and Environmental Sciences, University of Perugia, 06121, Perugia, Italy
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Anastasaki E, Psoma A, Partsinevelos G, Papachristos D, Milonas P. Electrophysiological responses of Philaenus spumarius and Neophilaenus campestris females to plant volatiles. Phytochemistry 2021; 189:112848. [PMID: 34171506 DOI: 10.1016/j.phytochem.2021.112848] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Revised: 06/14/2021] [Accepted: 06/15/2021] [Indexed: 06/13/2023]
Abstract
The spittlebugs Philaenus spumarius and Neophilaenus campestris (Hemiptera: Aphrophoridae) are xylem-feeder insects that have been identified as vectors of Xylella fastidiosa in Europe. In the present study, we aim to identify volatile organic compounds (VOCs) that may act as semiochemicals for these species. Using the dynamic headspace technique, we collected VOCs from Olea europaea L. and Polygala myrtifolia L., highly susceptible plant species to X. fastidiosa, Pinus halepensis Mill., a common plant where N. campestris is found during summer, and from host plant species that are used as cover crops or exist as natural vegetation in olive orchards, such as Cistus creticus L., Medicago sativa L., Cynodon dactylon (L.) Pers., Lolium arundinaceum (Schreb.) Darbysh., Apium graveolens L. and Petroselinum crispum (Mill.) Fuss. We tested the response of female antennae on those blends with Gas Chromatography-Electroantennographic Detection (GC-EAD). The chemical profile of C. creticus and P. halepensis was rich in terpenes, alcohols, aldehydes, and esters. In the O. europaea profile, the main compounds were terpenes. As for P. myrtifolia, the volatile profile consisted mostly of alkanes and their substitutes. In the volatile profile of M. sativa, C. dactylon and L. arundinaceum, common volatile compounds were detected. Petroselinum crispum and Apium graveolens chemical profiles were dominated by terpenes. Several compounds elicited a consistent response to the female antennae of both species. In total, 65 compounds elicited consistent EAD responses for P. spumarius and 16 compounds for N. campestris. α-pinene was found in all tested plants and elicited consistent EAD responses of P. spumarius in five plants. In addition, antennae of P. spumarius females responded to camphor, limonene, 4-methyl octane and sabinene. These compounds were found in the volatile profile of at least 5 out of 8 examined plant species. Behavioral bioassays using Y-tube olfactometry were performed on volatiles that elicited antennal responses during electrophysiological studies. Among the compounds tested in behavioral studies, namely (-)-α-pinene, (+)-α-pinene, sabinene, (-)-S-limonene and (1R)-(+)-camphor, only the last one elicited a significant attraction response by P. spumarius females. The results achieved shed light on the VOCs from selected host plant species of X. fastidiosa that are perceived by two important insect vectors and a non-host plant, P. crispum. The identification of semiochemicals for manipulating spittlebugs' behavior contribute to the development of efficient monitoring tools for X. fastidiosa vectors.
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Affiliation(s)
- Eirini Anastasaki
- Department of Entomology, Benaki Phytopathological Institute, 8 S. Delta Street, 14561, Kifissia, Greece
| | - Aikaterini Psoma
- Department of Entomology, Benaki Phytopathological Institute, 8 S. Delta Street, 14561, Kifissia, Greece
| | - George Partsinevelos
- Department of Entomology, Benaki Phytopathological Institute, 8 S. Delta Street, 14561, Kifissia, Greece
| | - Dimitrios Papachristos
- Department of Entomology, Benaki Phytopathological Institute, 8 S. Delta Street, 14561, Kifissia, Greece
| | - Panagiotis Milonas
- Department of Entomology, Benaki Phytopathological Institute, 8 S. Delta Street, 14561, Kifissia, Greece.
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Zhu Q, Wu N, Brożek J, Dai W. Antennal Morphology and Sexual Dimorphism of Antennal Sensilla in Callitettix versicolor (Fabricius) (Hemiptera: Cercopidae). Insects 2019; 10:E56. [PMID: 30791453 PMCID: PMC6409566 DOI: 10.3390/insects10020056] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/28/2019] [Revised: 02/09/2019] [Accepted: 02/15/2019] [Indexed: 11/27/2022]
Abstract
The rice spittlebug Callitettix versicolor (Fabricius) is an important pest of rice and maize in South Asia and causes severe economic damage. To provide background information for chemical ecology studies, the fine morphology of antennae and the types and distribution of the sensilla on the male and female antennae of Callitettix versicolor (Fabricius) are investigated by means of scanning electron microscopy (SEM). Results show that the antenna is filiform and composed of three segments: a scape, a pedicel, and a flagellum. The female antennae are slightly shorter than the male antennae. In both sexes, four types and nine subtypes of sensilla were observed: sensilla basiconica (SB1, SB2), sensilla campaniformia (SCa1, SCa2 and SCa3), sensilla coeloconica (SCo1, SCo2 and SCo3) and sensilla trichodea (ST). In addition, sensilla coeloconica (SCo1) are observed on the membrane of the top of the pedicel in Cercopidae for the first time. Sexual dimorphism mainly occurs in variation in the number of sensilla coeloconica (SCo2, SCo3) on the bulb-shaped portion of the flagellum and in the shape of sensilla basiconica (SB2). There are significantly more sensilla coeloconica in males than in females. The external structure and distribution of these sensilla are compared to those of other cercopids and possible functions of the antennal sensilla are discussed.
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Affiliation(s)
- Qing Zhu
- Key Laboratory of Plant Protection Resources and Pest Integrated Management of the Ministry of Education, College of Plant Protection, Northwest A&F University, Yangling 712100, Shaanxi, China.
| | - Nan Wu
- Key Laboratory of Plant Protection Resources and Pest Integrated Management of the Ministry of Education, College of Plant Protection, Northwest A&F University, Yangling 712100, Shaanxi, China.
| | - Jolanta Brożek
- Department of Zoology, Faculty of Biology and Environmental Protection, University of Silesia, Bankowa 9, 40-007 Katowice, Poland.
| | - Wu Dai
- Key Laboratory of Plant Protection Resources and Pest Integrated Management of the Ministry of Education, College of Plant Protection, Northwest A&F University, Yangling 712100, Shaanxi, China.
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Su T, He B, Li K, Liang A. Comparative analysis of the mitochondrial genomes of oriental spittlebug trible Cosmoscartini: insights into the relationships among closely related taxa. BMC Genomics 2018; 19:961. [PMID: 30587118 PMCID: PMC6307326 DOI: 10.1186/s12864-018-5365-7] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2018] [Accepted: 12/12/2018] [Indexed: 11/29/2022] Open
Abstract
Background Cosmoscartini (Hemiptera: Cercopoidea: Cercopidae) is a large and brightly colored Old World tropical tribe, currently containing over 310 phytophagous species (including some economically important pests of eucalyptus in China) in approximately 17 genera. However, very limited information of Cosmoscartini is available except for some scattered taxonomic studies. Even less is known about its phylogenetic relationship, especially among closely related genera or species. In this study, the detailed comparative genomic and phylogenetic analyses were performed on nine newly sequenced mitochondrial genomes (mitogenomes) of Cosmoscartini, with the purpose of exploring the taxonomic status of the previously defined genus Okiscarta and some closely related species within the genus Cosmoscarta. Results Mitogenomes of Cosmoscartini display similar genomic characters in terms of gene arrangement, nucleotide composition, codon usage and overlapping regions. However, there are also many differences in intergenic spacers, mismatches of tRNAs, and the control region. Additionally, the secondary structures of rRNAs within Cercopidae are inferred for the first time. Based on comparative genomic (especially for the substitution pattern of tRNA secondary structure) and phylogenetic analyses, the representative species of Okiscarta uchidae possesses similar structures with other Cosmoscarta species and is placed consistently in Cosmoscarta. Although Cosmoscarta bimacula is difficult to be distinguished from Cosmoscarta bispecularis by traditional morphological methods, evidence from mitogenomes highly support the relationships of (C. bimacula + Cosmoscarta rubroscutellata) + (C. bispecularis + Cosmoscarta sp.). Conclusions This study presents mitogenomes of nine Cosmoscartini species and represents the first detailed comparative genomic and phylogenetic analyses within Cercopidae. It is indicated that knowledge of mitogenomes can be effectively used to resolve phylogenetic relationships at low taxonomic levels. Sequencing more mitogenomes at various taxonomic levels will also improve our understanding of mitogenomic evolution and phylogeny in Cercopidae. Electronic supplementary material The online version of this article (10.1186/s12864-018-5365-7) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Tianjuan Su
- Key Laboratory of Zoological Systematics and Evolution, Institute of Zoology, Chinese Academy of Sciences, Beijing, 100101, China.,College of Life Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Bo He
- Key Laboratory of Cultivation and Protection for Non-Wood Forest Trees, Ministry of Education, Central South University of Forestry and Technology, Changsha, 410004, China
| | - Kui Li
- Key Laboratory of Zoological Systematics and Evolution, Institute of Zoology, Chinese Academy of Sciences, Beijing, 100101, China.,College of Life Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Aiping Liang
- Key Laboratory of Zoological Systematics and Evolution, Institute of Zoology, Chinese Academy of Sciences, Beijing, 100101, China. .,College of Life Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China.
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Su T, Liang A. Comparative analysis of seven mitochondrial genomes of Phymatostetha (Hemiptera: Cercopidae) and phylogenetic implications. Int J Biol Macromol 2018; 125:1112-1117. [PMID: 30578900 DOI: 10.1016/j.ijbiomac.2018.12.174] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2018] [Revised: 12/18/2018] [Accepted: 12/19/2018] [Indexed: 11/25/2022]
Abstract
In this study, we present seven mitochondrial genomes (mitogenomes) of Phymatostetha. Each mitogenome contains the entire set of 37 genes, which arranged in the same order as the putative ancestral pattern of insects. The nucleotide composition of Phymatostetha mitogenomes is biased toward A/T, with rRNAs and PCG12 (i.e. the first and second codon positions of PCGs) exhibit the highest and lowest A + T content, respectively. Relative synonymous codon usage of PCGs also show that degenerate codons are biased to use more A/T than G/C. All tRNAs exhibit typical clover-leaf structure, with the exception of trnS1. Additionally, unpaired nucleotides are detected in trnS1 anticodon stem and trnR acceptor stem. Phylogenetic relationships, based on the dataset of 13 PCGs, 22tRNAs, and two rRNAs, are analyzed using both the Bayesian and maximum likelihood methods. Our results clearly revealed the systematic status of Phymatostetha species and robustly supported the monophyly of this genus, in which Phymatostetha semele is sister to other Phymatostetha species. It was demonstrated that mitogenome was an effective molecular marker to adequately resolve phylogeny at low taxonomic levels.
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Affiliation(s)
- Tianjuan Su
- Key Laboratory of Zoological Systematics and Evolution, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China; College of Life Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Aiping Liang
- Key Laboratory of Zoological Systematics and Evolution, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China; College of Life Sciences, University of Chinese Academy of Sciences, Beijing 100049, China.
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Su T, Liang A. Characterization of the complete mitochondrial genome of Phymatostetha huangshanensis (Hemiptera: Cercopidae) and phylogenetic analysis. Int J Biol Macromol 2018; 119:60-69. [DOI: 10.1016/j.ijbiomac.2018.07.135] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2018] [Revised: 07/17/2018] [Accepted: 07/20/2018] [Indexed: 11/25/2022]
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Germinara GS, Ganassi S, Pistillo MO, Di Domenico C, De Cristofaro A, Di Palma AM. Antennal olfactory responses of adult meadow spittlebug, Philaenus spumarius, to volatile organic compounds (VOCs). PLoS One 2017; 12:e0190454. [PMID: 29287108 DOI: 10.1371/journal.pone.0190454] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2017] [Accepted: 12/14/2017] [Indexed: 11/19/2022] Open
Abstract
The meadow spittlebug, Philaenus spumarius L. (Hemiptera, Aphrophoridae) is a commonly found vector of Xylella fastidiosa Wells et al. (1987) strain subspecies pauca associated with the "Olive Quick Decline Syndrome" in Italy. To contribute to the knowledge of the adult P. spumarius chemoreceptivity, electroantennographic (EAG) responses of both sexes to 50 volatile organic compounds (VOCs) including aliphatic aldehydes, alcohols, esters, and ketones, terpenoids, and aromatics were recorded. Measurable EAG responses were elicited by all compounds tested. In both sexes, octanal, 2-octanol, 2-decanone, (E)-2-hexenyl acetate, and vanillin elicited the strongest antennal amplitude within the chemical groups of aliphatic saturated aldehydes, aliphatic alcohols, aliphatic acetates and aromatics, respectively. Male and female EAG responses to sulcatol, (±)linalool, and sulcatone were higher than those to other terpenoinds. In both sexes, the weakest antennal stimulants were phenethyl alcohol and 2-pentanone. Sexual differences in the EAG amplitude were found only for four of test compounds suggesting a general similarity between males and females in antennal sensitivity. The olfactory system of both sexes proved to be sensitive to changes in stimulus concentration, carbon chain length, and compound structure. Compounds with short carbon chain length (C5-C6) elicited lower EAG amplitudes than compounds with higher carbon chain length (C9-C10) in all classes of aliphatic hydrocarbons with different functional groups. The elucidation of the sensitivity profile of P. spumarius to a variety of VOCs provides a basis for future identification of behaviorally-active compounds useful for developing semiochemical-based control strategies of this pest.
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Ranieri E, Ruschioni S, Riolo P, Isidoro N, Romani R. Fine structure of antennal sensilla of the spittlebug Philaenus spumarius L. (Insecta: Hemiptera: Aphrophoridae). I. Chemoreceptors and thermo-/hygroreceptors. Arthropod Struct Dev 2016; 45:432-439. [PMID: 27664780 DOI: 10.1016/j.asd.2016.09.005] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/2016] [Revised: 09/19/2016] [Accepted: 09/19/2016] [Indexed: 06/06/2023]
Abstract
The meadow spittlebug, Philaenus spumarius (L.) (Hemiptera: Cercopoidea: Aphrophoridae), is a polyphagous species that transmits Xylella fastidiosa, a bacterium associated with "Olive Quick Decline Syndrome" in Southern Italy. In this study, the morphology and the ultrastructure of the antennal sensilla of P. spumarius were investigated. The antennae consist of three segments: a basal scape, a pedicel and a flagellum composed of a basal enlargement (ampulla) and a long segment (filament). The pedicel bears a single campaniform sensillum while the ampulla houses twelve coeloconic sensilla and three large basiconic sensilla. These latter sensilla show a smooth multiporous external cuticular wall and a total number of 27 sensory neurons per sensillum. The coeloconic sensilla belong to two morphologically distinct types: double-walled and single-walled sensilla. The sensory peg of the double-walled sensilla is smooth at the base and distally has a grooved cuticular surface with pores organized in spoke channels between each ridge. Three sensory neurons enter the lumen while at the basal level, before entering the peg, a fourth sensory neuron is found. The single-walled sensilla show an aporous thick cuticular wall and two sensory neurons entering the sensillar lumen, with a third neuron ending at the sensillum base.
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Affiliation(s)
- Emanuele Ranieri
- Dipartimento Scienze Agrarie, Alimentari E Ambientali, Università Politecnica Delle Marche, via Brecce Bianche, Ancona, 60131, Italy
| | - Sara Ruschioni
- Dipartimento Scienze Agrarie, Alimentari E Ambientali, Università Politecnica Delle Marche, via Brecce Bianche, Ancona, 60131, Italy
| | - Paola Riolo
- Dipartimento Scienze Agrarie, Alimentari E Ambientali, Università Politecnica Delle Marche, via Brecce Bianche, Ancona, 60131, Italy
| | - Nunzio Isidoro
- Dipartimento Scienze Agrarie, Alimentari E Ambientali, Università Politecnica Delle Marche, via Brecce Bianche, Ancona, 60131, Italy
| | - Roberto Romani
- Dipartimento Di Scienze Agrarie, Alimentari E Ambientali, Università Degli Studi Di Perugia, Borgo XX Giugno 74, Perugia, 06121, Italy.
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