The small species of Belostoma (Heteroptera: Belostomatidae): Revision of plebejum group

Estévez, Ana Lía; Polhemus, John T.

doi:10.15517/rbt.v55i1.6065

Cited by 10 publications

(21 citation statements)

References 5 publications

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“…Species without apparently remarkable diagnostic features in male genitalia (e.g. B. plebejum , B. micantulum , B. estevezae and B. nessimiani ; refer to Estévez and Polhemus 2007 and Ribeiro and Alecrim 2008) seem to be especially prone to this.…”

Section: Discussionmentioning

confidence: 99%

Disentangling the taxonomy of Belostoma Latreille (Hemiptera: Belostomatidae) with the aid of DNA barcoding approaches

et al. 2021

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Belostoma is the most diverse genus of Belostomatidae, comprising 74 species. The small Belostoma species are challenging to identify mainly due to the presence of cryptic species. As DNA barcoding has been a crucial tool to solve the taxonomic impediment associated with many taxa, we compared species delimitations obtained by morphological and molecular approaches, in order to help to disentangle the taxonomy of Belostoma. We sampled 192 specimens of Belostoma across the Rio Grande do Sul Brazilian Coastal Plain. Specimens were first identified with the use of morphological markers and then characterized for two mitochondrial markers: cytochrome C oxidase subunit I (COI) and 16S rRNA genes, generating 181 and 164 sequences, respectively. These were complemented with Belostoma sequences downloaded from NCBI/BOLD (101 for COI & 13 for 16S). Thus, matrixes including 282, 177 and 299 sequences for COI, 16S and the concatenated data set, respectively, were analysed through phylogenetic, phylogeographic and distance approaches. The initial morphological evaluation allowed the identification of 14 male genitalia morphotypes, whose sequences were added to a preliminary matrix containing NCBI/BOLD sequences of five other described species, allowing us to recover 10 clades in the molecular analyses. Patterns of reciprocal monophyly were confirmed for only six of the studied species: Belostoma angustum, Belostoma cummingsi, Belostoma dentatum, Belostoma noualhieri, Belostoma orbiculatum and Belostoma ribeiroi. Belostoma candidulum, Belostoma horvathi and Belostoma sanctulum appeared intermingled in a single clade. The grouping of these with the other five distinct (male genital) morphotypes reveals a clade with high levels of morphological polymorphism or phenotypic plasticity.

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Section: Discussionmentioning

confidence: 99%

Disentangling the taxonomy of Belostoma Latreille (Hemiptera: Belostomatidae) with the aid of DNA barcoding approaches

et al. 2021

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“…Specimens of Belostoma were collected with fine mesh water nets and light‐traps, and preserved in 70% ethanol. Species were identified with taxonomical keys and genital dissections of specimens (Schnack 1976; Estévez & Polhemus 2007; Ribeiro & Alecrim 2008). Lethocerus annulipes were collected from Venezuela, and are housed in the Museo Argentino de Ciencias Naturales “Bernardino Rivadavia” (MACN).…”

Section: Methodsmentioning

confidence: 99%

Is parental care behavior in Belostoma species an evolutionary cause for their common sexual size dimorphism pattern?

Iglesias¹,

Crespo

Valverde³

2011

Entomological Science

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Current evidence suggests that sexual size dimorphism (SSD) reflects the male and female adaptation to their different reproductive roles. Belostoma and Lethocerus species, included in Belostomatidae, present different kinds of paternal care. Females of Belostoma Latreille species lay their eggs on the back of males. Males carry, aerate and protect the clutch until hatching, which is critical for offspring survival. Males of Lethocerus Mayr species exhibit some parental care behavior but do not carry the eggs. The genera are nearly related. We studied and compared the SSD patterns of B. oxyurum (Dufour), B. micantulum (Stål), B. elegans (Mayr), B. bifoveolatum Spinola, B. gestroi Montandon and Lethocerus annulipes (Herrich‐Schäffer) by means of a multivariate approach to distinguish selection targets in different components of size. Morphometric analysis revealed that SSD patterns vary among traits and that the arrangements are similar in Belostoma species, showing a common trend under resembling selective mechanisms. The widespread SSD trend in insects is that all components of body size are biased towards females, generally related to a fecundity advantage, a pattern now also detected in L. annulipes. We found in Belostoma species that the male has relatively longer middle and hind legs. We propose that SSD in hind legs biased towards males is a selective response for paternal care; they denote a brood‐adapted morphology. The middle leg enlargement may be an associated response to maintain effective locomotion.

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“…Belostoma elongatum Montandon y Belostoma micantulum (Stål) se distribuyen en la Argentina desde el Norte hasta la Provincia de Buenos Aires (Bachmann, 1998). Ambas especies fueron citadas de la Provincia de Misiones (De Carlo, 1930;Lauck, 1962;Schnack, 1976;Lanzer-de Souza, 1980;Contartese & Bachmann, 1987;Papeschi, 1988;Morrone et al, 2004;Estévez & Polhemus, 2007;Ribeiro, 2007), pero no del parque. Lethocerus bruchi De Carlo (bajo Lethocerus truncatus Cummings) fue citada del Parque Provincial Salto Encantado (Estévez & Pérez-Goodwyn, 1999).…”

Section: Nepomorphaunclassified

Gerromorpha y Nepomorpha (Insecta: Heteroptera) del Parque Provincial Salto Encantado del Valle del Cuñá Pirú, Provincia de Misiones, Argentina

Mazzucconi

Ruf²,

Bachmann

2009

Lundiana

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A preliminary list of the species of semiaquatic and aquatic Heteroptera occurring in the Parque Provincial Salto Encantado del Valle del Cuñá Pirú is presented. Thirty species included in 13 genera and five families of Gerromorpha and 26 species belonging to 15 genera and six families of Nepomorpha were recorded; only 16 species had been previously cited from the park. Ten species and one genus are reported from Argentina for the first time: Microvelia argentata Nieser & Alkins-Koo, Microvelia braziliensis McKinstry, Microvelia limaiana Drake, Rhagovelia janeira Drake, Rhagovelia lucida Gould, Rhagovelia paulana Drake (Veliidae), the genus Cylindrostethus, with C. palmaris Drake & Harris (Gerridae), Curicta carinata Kuitert (Nepidae), Neotrephes lanemeloi Nieser & Chen, and Neotrephes usingeri China (Helotrephidae). Twenty-four species (18 of Gerromorpha and six of Nepomorpha) and five genera (Hebrus, Paravelia, Platyvelia, Cylindrostethus and Curicta) are reported from Misiones Province for the first time. The most diverse families included Veliidae (16 species), Gerridae (9), Naucoridae (7), Notonectidae (6) and Corixidae (5). The diversity of species inhabiting in the Parque Provincial Salto Encantado del Valle del Cuñá Pirú accounts for 83% of Gerromorpha and 39% of Nepomorpha recorded from the Misiones Province. These results emphasize the value of this protected area for the conservation of biodiversity of semiaquatic and aquatic Heteroptera occurring in the province. Keywords: Semiaquatic insects, aquatic insects, fauna. Neotropics.

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The small species of Belostoma (Heteroptera: Belostomatidae): Revision of plebejum group

Cited by 10 publications

References 5 publications

Disentangling the taxonomy of Belostoma Latreille (Hemiptera: Belostomatidae) with the aid of DNA barcoding approaches

Disentangling the taxonomy of Belostoma Latreille (Hemiptera: Belostomatidae) with the aid of DNA barcoding approaches

Is parental care behavior in Belostoma species an evolutionary cause for their common sexual size dimorphism pattern?

Gerromorpha y Nepomorpha (Insecta: Heteroptera) del Parque Provincial Salto Encantado del Valle del Cuñá Pirú, Provincia de Misiones, Argentina

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