Rostrum length, mandible serration, and food and salivary canals areas of selected species of stink bugs (Heteroptera, Pentatomidae)

Depieri, Rogério A.; Panizzi, Antônio R.

doi:10.1590/s0085-56262010000400008

Cited by 25 publications

(23 citation statements)

References 6 publications

(7 reference statements)

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“…Gross mouthpart morphology of M. cribraria is typical of other salivary sheath-producing hemipterans (Snodgrass 1935), and the mouthparts of nymphs and adults showed a high degree of gross and fine morphological similarity. Mandibular stylet tips were similar in shape and texture to other phytophagous pentatomid (Depieri & Panizzi 2010), blissid (Anderson et al 2006), and coreid (Rodrigues et al 2007) herbivores. The negative allometry between rostrum length and body length/pronotum width indicates that larger nymphs (and, therefore, later instars) have a proportionally smaller rostrum compared to body size; hence, the relative growth of mouthparts changes disproportionately as body size increases.…”

Section: Discussionmentioning

confidence: 83%

Mouthpart morphology and feeding behavior of the invasive kudzu bug, Megacopta cribraria (Hemiptera: Plataspidae)

Stubbins

Mitchell

Turnbull

et al. 2017

Invertebrate Biology

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The invasive kudzu bug, Megacopta cribraria, was first reported in North America in 2009 and has subsequently spread through most of the southeastern United States, causing yield loss in soybean. Since detection in the USA, research has focused mainly on managing this newly established pest, but many important characteristics of the pest's mouthpart morphology and feeding behavior are unknown. Qualitative and quantitative comparisons of nymph and adult mouthparts and sensilla were made through scanning electron microscopy and light microscopy, and feeding behavior was examined using electropenetrography (EPG) and paraffin histology. Morphologies observed were similar to what has previously been reported for other piercing–sucking hemipterans. The relationship between rostrum length and body size (pronotum width and dorsal length) exhibited negative allometry. Rostrum length exhibited an isometric relationship with interocular width. Adult females (n=9) probed soybean stems 1.3±0.8 times in 9 h, with an average probe time of 2.3±1.3 h. EPG waveforms were characterized and correlated with behavior. Salivary sheaths were shown to terminate in the vascular tissue; four of five sheaths terminated in the phloem. This is the first time that the feeding behavior of a member of the Plataspidae has been recorded using EPG. Results add to our current limited knowledge of plataspid mouthpart morphology and provide a baseline for further research on the feeding behaviors of M. cribraria and other soybean‐feeding hemipterans.

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Section: Discussionmentioning

confidence: 83%

Mouthpart morphology and feeding behavior of the invasive kudzu bug, Megacopta cribraria (Hemiptera: Plataspidae)

Stubbins

Mitchell

Turnbull

et al. 2017

Invertebrate Biology

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“…A significant number of teeth (from 1 to 20) are present on the mandibles in other pentatomomorphan families, coreoids and lygaeids [8], although the latter are also seed-feeders. The well-formed mandibular teeth in the mentioned taxa are used in lacerate-and-flush feeding and serve to pierce the plant tissues and then anchor the mandibles in the tissue [8,[39][40][41][42]. The inner surface of the mandibles of each largid species has a complex ribbed squamous texture.…”

Section: Mouthpart Morphologymentioning

confidence: 99%

Morphological Disparity of the Mouthparts in Polyphagous Species of Largidae (Heteroptera: Pentatomomorpha: Pyrrhocoroidea) Reveals Feeding Specialization

Wang

Brożek

Dai

2020

Insects

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Mouthpart structures were observed in four species of Largidae using scanning electron microscopy to investigate their morphological disparity, and linked to changes in feeding specialization. The examined species are pests that feed mainly on seeds and plant sap of forbs, shrubs, and trees. Their external mouthparts are described in detail for the first time herein. The cone-like labrum and four-segmented tube-like labium are shorter in Physopelta species than in Macrocheraia grandis (Grey). The labium surface in all studied species bears nine types of sensilla (St1-St2, Sb1-3, Sch, Sca1-2, Sm). The distributions of sensilla on particular labial segments varies among the studied species. The tripartite apex of the labium consists of two lateral lobes and an apical plate that is partly divided in Physopelta species, and not divided in Macrocheraia. Each lateral lobe possesses a sensillar field with 10 thick-walled uniporous sensilla basiconica, one multiporous sensillum styloconicum, and one long non-porous hair sensillum. Each mandibular stylet tip in M. grandis has a central tooth placed anteriorly and pairs of teeth arranged dorso-laterally. In Physopelta, there are one or two central teeth placed anteriorly but two pairs of teeth dorso-laterally. In all studied species, the inner surfaces of the mandibular stylets have scale-like projections. A left–right asymmetry of the maxillary stylets is noticeable; the external end of the right maxillary stylet is smooth and slightly tapered in M. grandis and evidently wider (spoon–like) in the three species of Physopelta, while the left end of the stylets is straight and narrow in M. grandis in contrast to Physopelta, in which the end is straight and wide. No differences in the internal structure of the maxillary stylets were observed among the studied species. Based on structural differences, we inferred that the mandibles and maxillae are more adapted for seed-sucking in Physopelta species than in M. grandis. M. grandis has the ends of the maxillae more narrowed, a trait more adapted for sucking sap from phloem or parenchymal cells.

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“…Piezodorus guildinii is a neotropical specie, found from the South of the United States down to Argentina. This specie has secondary importance, as it occurs at low densities, although it is responsible for more severe damages to soybean due to the larger area of the insect feeding apparatus (Depieri and Panizzi ). Nezara virudula occurs mainly in the states of Santa Catarina and Rio Grande do Sul (Hoffmann‐Campo et al.…”

Section: Introductionmentioning

confidence: 99%

Selection of soybean lines exhibiting resistance to stink bug complex in distinct environments

Rocha

Vieira

Ferreira

et al. 2015

Food and Energy Security

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In soybean, stink bugs are considered the most important pest insect as they feed directly from the grain, causing significant losses in seed yield and quality. The use of resistant genotypes is a promising strategy to control these insects. Focusing on selection of soybean lines with resistance and high yield potential, 251 recombinant inbred lines (RILs), derived from a cross between IAC‐100 (resistant) and CD‐215 (susceptible), were evaluated in two experiments, designed as alpha‐lattice, with three replicates in Piracicaba, during the growing seasons of 2012/13 and 2013/14. The evaluated traits were as follows: number of days to maturity (NDM), plant height at maturity (PHM), grain filling period (GFP), lodging (L), agronomic value (AV), grain yield (GY), weight of a hundred seeds (WHS), leaf retention (LR), and healthy seeds weight (HSW). Variance components were estimated by the Restricted Maximum Likelihood method (REML). Heritability and selection gain (SG) parameters were also calculated. Selection was carried out based on 2012/13 season, considering the genotypes that exhibited a minimum HSW of 2908.26 kg ha−1 (acceptable losses of 20% from the average GY). Insect population was monitored by cloth beating. An increase in stink bug population was observed during the grain filling period, with the highest population density occurring in the season 2012/13. Estimates of the variance components demonstrated the elevate influence of the interaction genotype x environment on GY and HSW, which exhibited the lowest estimates of heritability (23 and 34%, respectively). The estimate selection gain, calculated from the predicted means of GY and HSW, was of 665.4 and 482.4 kg ha−1 season 2012/13. Therefore, the applied selection allowed the identification of the genotypes exhibiting higher yields and resistance to the stink bug complex. From the RIL population, lines or genotypes potentially useful to generate novel cultivars were identified.

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Rostrum length, mandible serration, and food and salivary canals areas of selected species of stink bugs (Heteroptera, Pentatomidae)

Cited by 25 publications

References 6 publications

Mouthpart morphology and feeding behavior of the invasive kudzu bug, Megacopta cribraria (Hemiptera: Plataspidae)

Mouthpart morphology and feeding behavior of the invasive kudzu bug, Megacopta cribraria (Hemiptera: Plataspidae)

Morphological Disparity of the Mouthparts in Polyphagous Species of Largidae (Heteroptera: Pentatomomorpha: Pyrrhocoroidea) Reveals Feeding Specialization

Selection of soybean lines exhibiting resistance to stink bug complex in distinct environments

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