Diceraeus melacanthus Dallas, 1851,

Barros, Lurdiana D., Paim, Marcelo R., Krein, Verônica, Carabajal, Victor, Brandão, Marcela N., Bernardes, Paula De O. & Lindner, Mariana F., 2021, Illustrated guide to Pentatominae (Hemiptera: Pentatomidae) species associated with the four main grain crops in Rio Grande do Sul state, Brazil, Zootaxa 4958 (1), pp. 430-478: 450-451

publication ID

https://doi.org/10.11646/zootaxa.4958.1.27

publication LSID

lsid:zoobank.org:pub:303D300E-C17B-407C-A63B-53F906C5D825

DOI

http://doi.org/10.5281/zenodo.4711037

persistent identifier

http://treatment.plazi.org/id/F55187E5-FFB0-FF86-FF36-9B2823C67845

treatment provided by

Plazi

scientific name

Diceraeus melacanthus Dallas, 1851
status

 

Diceraeus melacanthus Dallas, 1851 

( Figs 53–55View FIGURES 53–55)

Diceraeus melacanthus Dallas, 1851: 208  .

Dichelops melacanthus: Pennington, 1920: 8  .

Dichelops (Neodichelops) melacanthus: Grazia, 1978: 76  .

Dichelops (Diceraeus) melacanthus: Grazia & Schwertner, 2008: 234  ; Bianchi et al. 2019.

Diceraeus melacanthus: Barão et al. 2020: 10  (stat. rev. by Barão et al. 2020).

Material studied. Santa Maria: 3♀, XII.1981, D. Link. leg ( UFRG).  São Sepé: 1♂, 2♀, 1981, Costa & Link leg. ( UFRG)  .

Diagnostic features. Living specimens have the dorsal surface light castaneous to orange-castaneous ( Fig. 53View FIGURES 53–55) and ventral surface green ( Fig. 54View FIGURES 53–55). Mandibular plates longer than clypeus, acute apically ( Fig. 53View FIGURES 53–55). Internal angles and posterior margin of cicatrices of pronotum dark castaneous. Anterolateral margins of pronotum concave and serrate, with pale outline ( Fig. 53View FIGURES 53–55). Humeral angles dark, strongly developed into an elongate spine, directed laterally ( Fig. 53View FIGURES 53–55). Pale spots along lateral margins of scutellum and corium, apex of scutellum pale. Connexivum green in live specimens and straw-colored in mounted specimens, with anterior angles maculate and posterior angle produced. Posterior margin of abdominal sternite 7 strongly acute. Body length: 10.00 mm.

Recorded host plants: Barley, canola (Marsaro Jr. et al. 2017; Bianchi et al. 2019), maize ( Roza-Gomes et al. 2011; Panizzi et al. 2012), oat ( Pereira & Salvadori 2020; Panizzi et al. 2012), rye ( Pereira & Salvadori 2020), soybean ( Link & Grazia 1987; Panizzi et al. 2012) and wheat ( Panizzi et al. 2012).

Distribution in Rio Grande do Sul. Canoas, Encruzilhada do Sul, Guaíba, Imbé, Osório, Passo Fundo, Porto Alegre, Rio Pardo, Santa Maria, São Sepé and Torres ( Fig. 55View FIGURES 53–55).

Comments. This species is known as the green-bellied bug. Both adults and nymphs cause damage to the base of the plants, through the leaf sheath, reaching the inner leaves. Fifth instar nymphs are green.

UFRG

Instituto de Biologia

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Hemiptera

Family

Pentatomidae

Genus

Diceraeus

Loc

Diceraeus melacanthus Dallas, 1851

Barros, Lurdiana D., Paim, Marcelo R., Krein, Verônica, Carabajal, Victor, Brandão, Marcela N., Bernardes, Paula De O. & Lindner, Mariana F. 2021
2021
Loc

Diceraeus melacanthus: Barão et al. 2020: 10

Barao, K. R. & Ferrari, A. & Grazia, J. 2020: 10
2020
Loc

Dichelops (Diceraeus) melacanthus:

Grazia, J. & Schwertner, C. F. 2008: 234
2008
Loc

Dichelops (Neodichelops) melacanthus:

Grazia, J. 1978: 76
1978
Loc

Dichelops melacanthus:

Pennington, M. S. 1920: 8
1920
Loc

Diceraeus melacanthus

Dallas, W. S. 1851: 208
1851