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Hansen S, Addison P, Benoit L, Haran JM. Barcoding pest species in a biodiversity hot-spot: the South African polyphagous broad-nosed weevils (Coleoptera, Curculionidae, Entiminae). Biodivers Data J 2021; 9:e66452. [PMID: 34257510 PMCID: PMC8263552 DOI: 10.3897/bdj.9.e66452] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2021] [Accepted: 06/09/2021] [Indexed: 11/25/2022] Open
Abstract
Polyphagous broad nosed weevils (Curculionidae: Entiminae) constitute a large and taxonomically challenging subfamily that contains economically significant agricultural pests worldwide. South Africa is a hot-spot for biodiversity and several species of indigenous and endemic genera of Entiminae have shifted on to cultivated plants, with some being phytosanitary pests. The sporadic pest status of many species (where the species has an occasional economic impact on the agricultural industry, but is not encountered often enough that is is readily recognisable by researchers and agricultural extension workers) and the presence of pest complexes and cryptic species represent an identification challenge to non-specialists. Furthermore, no comprehensive identification tools exist to identify immature stages that may be found in crops/soil. In this paper, a curated barcoding database with 70 COI sequences from 41 species (39 Entiminae, 2 Cyclominae) is initiated, to assist with the complexity of identification of species in this group.
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Affiliation(s)
- Steffan Hansen
- Stellenbosch University, Stellenbosch, South AfricaStellenbosch UniversityStellenboschSouth Africa
| | - Pia Addison
- University of Stellenbosch, Stellenbosch, South AfricaUniversity of StellenboschStellenboschSouth Africa
| | - Laure Benoit
- CBGP, CIRAD, Montpellier SupAgro, INRA, IRD, Montpellier University, Montpellier, FranceCBGP, CIRAD, Montpellier SupAgro, INRA, IRD, Montpellier UniversityMontpellierFrance
| | - Julien M Haran
- CBGP, CIRAD, Montpellier SupAgro, INRA, IRD, Montpellier University, Montpellier, FranceCBGP, CIRAD, Montpellier SupAgro, INRA, IRD, Montpellier UniversityMontpellierFrance
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Girón JC. Status of knowledge of the broad-nosed weevils of Colombia (Coleoptera, Curculionidae, Entiminae). NEOTROPICAL BIOLOGY AND CONSERVATION 2020. [DOI: 10.3897/neotropical.15.e59713] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Broad-nosed weevils in the subfamily Entiminae (Coleoptera: Curculionidae) are highly diverse, not only in terms of number of species, but also in their sizes, forms and colours. There are eight tribes, 50 genera and 224 entimine species recorded from Colombia: seven genera and 142 species are considered endemic and only a handful of species, which are recognised as pests of Citrus or potatoes, are broadly known. The large diversity of this subfamily in the country is only superficially known and even though genus level identifications are generally achievable, species identification remains quite challenging, due in part to limited access to broadly-scattered basic information. Summaries of available information and bibliographic resources for each of the tribes represented in Colombia are offered, along with a checklist of the species of Entiminae recorded from the country, obtained from literature and a pictorial key for tribal recognition. New combinations are proposed for eight species of the genus Lanterius Alonso-Zarazaga & Lyal. Information on the distribution of entimine species in Colombia is compiled for the first time, including complete references to each original description and available taxonomic revisions. About a third of the species of Entiminae remain as recorded from the country without specific locality information. In addition, genus level distributional maps are presented, generated from data obtained from four Colombian entomological collections. Lastly, some challenges for entimine identification in Colombia, which likely extend throughout the Neotropical region, are briefly discussed. This contribution aims, in part, to facilitate and promote entimine research in northern South America.
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Cortés-Hernández KA, Morrone JJ. Systematic revision of the genus Isodacrys Sharp, 1911 (Coleoptera: Curculionidae: Entiminae: Tanymecini). PeerJ 2020; 8:e10191. [PMID: 33194405 PMCID: PMC7602693 DOI: 10.7717/peerj.10191] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Accepted: 09/24/2020] [Indexed: 11/20/2022] Open
Abstract
The genus Isodacrys Sharp, 1911 is revised. Twenty species of the genus are recognized ranging from south United States of America, Mexico, Guatemala and Honduras of which eight are herein described as new. These species are Isodacrys antrum Cortés-Hernández, new species (Mexico: Tamaulipas, Chiapas; Guatemala: Baja Verapaz); Isodacrys carlae Cortés-Hernández, new species (Mexico: Coahuila, Hidalgo, Nuevo León, San Luis Potosí, Tamaulipas); Isodacrys confusum Cortés-Hernández, new species (Mexico: Tamaulipas); Isodacrys fasciatum Cortés-Hernández, new species (Mexico: Coahuila, Durango, Nuevo León); Isodacrys frontalis Cortés-Hernández, new species (Mexico: Oaxaca; Guatemala: Sacatepéquez, Guatemala); Isodacrys kuchii Cortés-Hernández, new species (Mexico: Puebla); Isodacrys obrienorum Cortés-Hernández, new species (Guatemala: Totonicapán, Jalapa, San Marcos); and Isodacrys okuiltontli Cortés Hernández, new species (Mexico: Oaxaca). Insights into the monophyly of Isodacrys and its phylogenetic relationships with other Tanymecini based on adult morphology are given by implementing a phylogenetic analysis of 43 terminals (21 ingroup, 22 outgroup) coded for 72 adult morphological characters. Characters were discussed and highlighted for the inclusion in the phylogenetic analysis. Final analysis yielded two most-parsimonious cladograms of 242 steps, which support the monophyly of Isodacrys. Isodillex Cortés-Hernández, new genus is here described to accommodate Isodillex minutum (Sharp, 1911), new combination and Isodillex plumosum Cortés-Hernández, new species (Mexico: Zacatecas). Isodillex was recovered as sister group of Isodacrys. Key to separate Isodacrys species, occurrence map and habitus photographs are also provided.
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Affiliation(s)
- Kevin A. Cortés-Hernández
- Museo de Zoología “Alfonso L. Herrera”, Departamento de Biología Evolutiva, Facultad de Ciencias, Universidad Nacional Autónoma de México (UNAM), Mexico City, Mexico
| | - Juan J. Morrone
- Museo de Zoología “Alfonso L. Herrera”, Departamento de Biología Evolutiva, Facultad de Ciencias, Universidad Nacional Autónoma de México (UNAM), Mexico City, Mexico
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Girón JC, Chamorro ML. Variability and distribution of the golden-headed weevil Compsus auricephalus (Say) (Curculionidae: Entiminae: Eustylini). Biodivers Data J 2020; 8:e55474. [PMID: 32733144 PMCID: PMC7365837 DOI: 10.3897/bdj.8.e55474] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Accepted: 07/03/2020] [Indexed: 11/12/2022] Open
Abstract
Background The golden-headed weevil Compsus auricephalus is a native and fairly widespread species across the southern U.S.A. extending through Central America south to Panama. There are two recognised morphotypes of the species: the typical green form, with pink to cupreous head and part of the legs and the uniformly white to pale brown form. There are other Central and South American species of Compsus and related genera of similar appearance that make it challenging to provide accurate identifications of introduced species at ports of entry. New information Here, we re-describe the species, provide images of the habitus, miscellaneous morphological structures and male and female genitalia. We discuss the morphological variation of Compsus auricephalus across its distributional range, by revising and updating its distributional range, based on data from entomological collections in the U.S.A. and Canada. The revised distribution of C. auricephalus extends as far south as Zacapa in Guatemala. Records south from there correspond to a different species, with affinities to C. auricephalus that we discuss and illustrate. We also discuss morphological affinities and differences with other similar species. Furthermore, we summarise information regarding the biology, host plants and natural enemies of C. auricephalus.
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Affiliation(s)
- Jennifer C Girón
- Natural Science Research Laboratory, Museum of Texas Tech University, Lubbock, United States of America Natural Science Research Laboratory, Museum of Texas Tech University Lubbock United States of America
| | - M Lourdes Chamorro
- Systematic Entomology Laboratory, ARS, USDA, c/o National Museum of Natural History, Smithsonian Institution, Washington, DC, United States of America Systematic Entomology Laboratory, ARS, USDA, c/o National Museum of Natural History, Smithsonian Institution Washington, DC United States of America
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McDonald LT, Narayanan S, Sandy A, Saranathan V, McNamara ME. Brilliant angle-independent structural colours preserved in weevil scales from the Swiss Pleistocene. Biol Lett 2020; 16:20200063. [PMID: 32289243 PMCID: PMC7211455 DOI: 10.1098/rsbl.2020.0063] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Extant weevils exhibit a remarkable colour palette that ranges from muted monochromatic tones to rainbow-like iridescence, with the most vibrant colours produced by three-dimensional photonic nanostructures housed within cuticular scales. Although the optical properties of these nanostructures are well understood, their evolutionary history is not fully resolved, in part due to a poor knowledge of their fossil record. Here, we report three-dimensional photonic nanostructures preserved in brightly coloured scales of two weevils, belonging to the genus Phyllobius or Polydrusus, from the Pleistocene (16–10 ka) of Switzerland. The scales display vibrant blue, green and yellow hues that resemble those of extant Phyllobius/Polydrusus. Scanning electron microscopy and small-angle X-ray scattering analyses reveal that the subfossil scales possess a single-diamond photonic crystal nanostructure. In extant Phyllobius/Polydrusus, the near-angle-independent blue and green hues function primarily in crypsis. The preservation of far-field, angle-independent structural colours in the Swiss subfossil weevils and their likely function in substrate matching confirm the importance of investigating fossil and subfossil photonic nanostructures to understand the evolutionary origins and diversification of colours and associated behaviours (e.g. crypsis) in insects.
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Affiliation(s)
- Luke T McDonald
- School of Biological, Earth and Environmental Sciences, University College Cork, Cork T23 TK30, Ireland.,Environmental Research Institute, University College Cork, Cork T23 XE10, Ireland
| | - Suresh Narayanan
- Advanced Photon Source, Argonne National Laboratory, Argonne, IL 60439, USA
| | - Alec Sandy
- Advanced Photon Source, Argonne National Laboratory, Argonne, IL 60439, USA
| | - Vinodkumar Saranathan
- Division of Science, Yale-NUS College, 138609, Singapore.,Department of Biological Sciences, National University of Singapore 117543, Singapore.,NUS Nanoscience and Nanotechnology Initiative (NUSNNI-NanoCore), National University of Singapore, 117581, Singapore.,Lee Kong Chian Natural History Museum, National University of Singapore, 117377, Singapore
| | - Maria E McNamara
- School of Biological, Earth and Environmental Sciences, University College Cork, Cork T23 TK30, Ireland.,Environmental Research Institute, University College Cork, Cork T23 XE10, Ireland
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Molecular and Morphological Phylogenetic Analysis of Naupactus Dejean (Curculionidae: Entiminae) and Allied Genera: The Dilemma of Classification. DIVERSITY 2018. [DOI: 10.3390/d10030059] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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