Contributions to the knowledge of Dichelops (Dichelops) with the description of a new species (Hemiptera: Heteroptera: Pentatomidae: Pentatominae: Carpocorini)

Klein, Joana Tartari; Barcellos, Aline; Grazia, Jocélia

doi:10.11646/zootaxa.3157.1.6

Cited by 606 publications

(3 citation statements)

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“…Grazia (1978), Klein et al . (2012), and Poock‐da‐Silva et al . (2013) are sources for descriptions and identification keys for species of Dichelops ( Dichelops ) and Dichelops ( Prodichelops ).…”

Section: Taxonomymentioning

confidence: 98%

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Phylogenetic analysis of theEuschistusgroup (Hemiptera: Pentatomidae) suggests polyphyly ofDichelopsSpinola, 1837 with the erection ofDiceraeusDallas, 1851, stat. rev.

2020

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Carpocorini are the most diverse tribe within Pentatominae, comprising about 100 genera and 500 species, with the highest diversity found in the Neotropics. Within Carpocorini, some groups of genera have been, formally or informally, proposed based on morphological similarities and taxonomic history. The Euschistus group was informally proposed and comprises 20 genera, including Euschistus Dallas, 1851 and Dichelops Spinola, 1837. Both of these genera had their monophyly under dispute recently. Dichelops, which includes the species commonly known as the green‐belly stink bug, comprises 16 species in three subgenera, with an exclusively Neotropical distribution. The genus was revised recently, and for each subgenus, a set of distinct morphological characters was listed, which allow their precise identification. We tested the monophyly of the Euschistus group and of Dichelops under parsimony criteria using discrete and continuous characters and two‐character weighting methods. The Euschistus group was paraphyletic, and Dichelops was polyphyletic in every analysis, and the taxonomic characters formerly proposed as diagnostic for the genus and its subgenera were homoplastic. On the basis of the phylogenetic result, we propose the erection of Diceraeus Dallas, 1851, stat. rev. to the status of genus and Dichelops comprising two subgenera, the nominal and Prodichelops Grazia, 1978. This decision has implications for applied entomology, because species of Diceraeus are important crop pests in the Neotropics.

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Section: Taxonomymentioning

confidence: 98%

“…– and was revised by Grazia (1978) with few species added since (Klein et al . 2012; Poock‐da‐Silva et al . 2013).…”

Section: Introductionmentioning

confidence: 99%

Phylogenetic analysis of theEuschistusgroup (Hemiptera: Pentatomidae) suggests polyphyly ofDichelopsSpinola, 1837 with the erection ofDiceraeusDallas, 1851, stat. rev.

2020

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“…The genus Dichelops is of Neotropical occurrence and contains three subgenera: Dichelops, Neodichelops and Prodichelops, which have 14 recognized species (Grazia, 1978) and another that was recently described (Klein et al, 2012). Although the range of stink bugs belonging to this genus is relatively restricted, the recent range expansion of other Pentatomidae species (Tindal and Fothergill, 2011;Martinson et al, 2016;Ciceoi et al, 2017) warns of the possible threat of their introduction and subsequent colonization of both cultivated (Olson et al, 2016;Tillman and Cottrell, 2016;Ciceoi et al, 2017) and wild hosts (Martinson et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

Susceptibility of corn to stink bug (Dichelops melacanthus) and its management through seed treatment

et al. 2019

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We determined the susceptibility of vegetative corn stages to Dichelops melacanthus damage, and how seed treatment can reduce damage and yield loss. Two field trials were carried out. In the first, corn plants were artificially infested with D. melacanthus male/female pairs at rate of 0.5 pair per plant at different vegetative stages and infestation periods lasting 7-28 days (V1-V3, V1-V5, V1-V7, V1-V9, V3-V5, V3-V7, V3-V9, V5-V7, V5-V9, and V7-V9), plus a control without infestation. In the second, corn plants were artificially infested at a rate of one male/female pair per plant at different vegetative stages and infestation periods (V1-V3, V1-V5, V1-V7, V3-V5, V3-V7 and V5-V7) and treated with two pesticide seed coatings: (i) fungicide [carbendazim + thiram (150 g i.a. per L and 350 g i.a. per L)] + insecticide [clothianidin (600 g i.a. per L)] or (ii) only fungicide (carbendazim + thiram), plus three controls without infestation and with only fungicide-treatment (V1-V7, V3-V7 and V5-V7). In both trials, plants were caged during the entire period in order to hold stink bugs in contact with plants and to avoid injury from other arthropods. The most stink bug susceptible corn growth periods were from V1-V5 and from V1-V7. Seed treatment with clothianidin at the rate of 3.5 mL per Kg during the most susceptible infestation periods increased yield gain of 37.8 to 61%. Treatment with clothianidin during V1-V5 and V1-V7 caused 40% to 50% D. melacanthus adult mortality, respectively.

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Diversity of stink bugs (Hemiptera: Heteroptera: Pentatomoidea) in the Brazilian Pampa and the Parque Estadual de Itapuã, Rio Grande do Sul

Brugnera,

Paim,

Brião

et al. 2023

Neotrop Entomol

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Contributions to the knowledge of Dichelops (Dichelops) with the description of a new species (Hemiptera: Heteroptera: Pentatomidae: Pentatominae: Carpocorini)

Cited by 606 publications

References 0 publications

Phylogenetic analysis of theEuschistusgroup (Hemiptera: Pentatomidae) suggests polyphyly ofDichelopsSpinola, 1837 with the erection ofDiceraeusDallas, 1851, stat. rev.

Phylogenetic analysis of theEuschistusgroup (Hemiptera: Pentatomidae) suggests polyphyly ofDichelopsSpinola, 1837 with the erection ofDiceraeusDallas, 1851, stat. rev.

Susceptibility of corn to stink bug (Dichelops melacanthus) and its management through seed treatment

Diversity of stink bugs (Hemiptera: Heteroptera: Pentatomoidea) in the Brazilian Pampa and the Parque Estadual de Itapuã, Rio Grande do Sul

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