The pregenital abdomen of Enicocephalomorpha and morphological evidence for different modes of communication at the dawn of heteropteran evolution

Davranoglou, Leonidas‐Romanos; Baňař, Petr; Mortimer, Beth; Taylor, Graham K.

doi:10.1016/j.asd.2017.08.006

Cited by 10 publications

(11 citation statements)

References 49 publications

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“…2. In terms of musculature, metathoracic muscle IIIvlm2 is a reliable indicator of segmental identity, as in most insects, it inserts on sternal antecosta 2, which marks the posterior boundary of sternum 1 (Friedrich & Beutel, 2008, supplementary table;Davranoglou et al, 2017Davranoglou et al, , 2019c. The insertion of this muscle on the anterior margin of the chitinous V suggests that it is indeed the proximal portion of sternum (stn2a), providing further support for our interpetations.…”

Section: Segmental Reinterpretation Of Auchenorrhynchan Vibroacoustic Organssupporting

confidence: 56%

“…For example, Ossiannilsson (1949) considered muscle "Iaism" (our dvmII4; Table 2) intersegmental, as it inserted on what he interpreted as sternum 1, but originated on tergum 2 (Table 3). Our finding that sternum 1 of Ossiannilsson (1949) in fact represents stn2a would imply that the identification of this muscle as intersegmental is erroneous, and that this muscle cannot then be homologous with the true intersegmental muscles found in some Heteroptera (Davranoglou et al, 2017) and Sternorrhyncha (Weber, 1935).…”

Section: Implications For the Tymbalia Hypothesismentioning

confidence: 86%

“…The homologies of auchenorrhynchan vibrational organs to those of their sister groups, Heteroptera and/or Coleorrhyncha, are even murkier. Heteroptera have a strongly reduced sternum 1, their abdominal sterna are much broader, and the musculature is greatly simplified; terga 1-2 are closely associated and form a simple tergal plate, which is devoid of either a buckling membrane or a Y-lobe (Davranoglou et al, 2017). The condition of Coleorrhyncha is poorly known (Hartung, 2007;Wessel et al, 2014), although an investigation of their morphology is currently under way (Davranoglou et al, in preparation).…”

Section: Systematic Distribution Of Cicadomorphan Vibroacoustic Organs and Evolutionary Implicationsmentioning

confidence: 99%

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On the morphology and evolution of cicadomorphan tymbal organs

Davranoglou

Mortimer

Taylor

et al. 2020

Arthropod Structure & Development

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Cicadas and many of their relatives (Hemiptera: Cicadomorpha) generate vibroacoustic signals using tymbal organs located on their first two abdominal segments.Although tymbals are well-studied in Cicadidae, their systematic distribution in other Cicadomorpha and their possible homologies to the vibroacoustic mechanisms of other Hemiptera have been debated for more than a century. In the present study, we re-examine the morphology of the musculoskeletal system of cicadomorphan vibroacoustic organs, and we document their systematic distribution in 79 species drawn from across the phylogeny of Cicadomorpha. We also compare their morphology to the recently-described snapping organ of planthoppers (Fulgoromorpha). Based on the structure and innervation of the metathoracic and abdominal musculoskeletal system, we find that several key elements of cicadomorphan vibroacoustic organs that have previously been assigned to the first abdominal segment in fact belong to the second. We find that tymbal organs are nearly ubiquitous in Cicadomorpha, and conclude based on their phylogenetic distribution, that they are likely to be synapomorphic.The unusual tymbal-like organs of the Deltocephalinae and Typhlocybinae, represent derived modifications. Finally, we propose a standardised terminology for sternal components of the cicadomorphan vibrational organs, which can be used in future taxonomic descriptions.

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Section: Segmental Reinterpretation Of Auchenorrhynchan Vibroacoustic Organssupporting

confidence: 56%

Section: Implications For the Tymbalia Hypothesismentioning

confidence: 86%

Section: Systematic Distribution Of Cicadomorphan Vibroacoustic Organs and Evolutionary Implicationsmentioning

confidence: 99%

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On the morphology and evolution of cicadomorphan tymbal organs

Davranoglou

Mortimer

Taylor

et al. 2020

Arthropod Structure & Development

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“…Here we use the terms “tergum” and “sternum” for all dorsal and ventral abdominal sclerites and “laterotergite” for a lateral subdivision of the tergum following recent papers on the morphology of the pregenital abdomen in Dipsocoromorpha (Knyshov et al 2018) and a putatively closely related group of Heteroptera (Davranoglou et al 2017). …”

Section: Methodsmentioning

confidence: 99%

Synopsis of Schizopteridae (Hemiptera, Heteroptera, Dipsocoromorpha) from the United States, with description of seven new species from the US and Mexico

Weirauch¹,

Hoey-Chamberlain²,

Knyshov³

2018

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Because species diversity of the small true bug family Schizopteridae is greatest in tropical and subtropical areas, it is not surprising that only four species have been described from the United States. As part of a larger project on the taxonomy and phylogenetics of Schizopteridae, 178 specimens from the United States were examined. This material contained representatives of the previously described species Glyptocombussaltator Heidemann, 1906, Corixideamajor McAtee & Malloch, 1925, Nannocorisarenarius Blatchley, 1926, and Schizopterabispina McAtee & Malloch, 1925, but also six undescribed species. These new taxa are described as Glyptocombushalbertaesp. n., Glyptocombussuterisp. n., Nannocorisanophorussp. n., Nannocorisbrevipilussp. n., Schizoptera (Cantharocoris) rileyisp. n., and Schizoptera (Schizoptera) henryisp. n. Habitus images and genitalic illustrations of the previously described and the new species are provided as well as a map showing distribution ranges of these species in the United States and Mexico. To provide a comprehensive treatment of the small genus Glyptocombus Heidemann, 1906, Glyptocombusmexicanussp. n. is also described that, to our knowledge, occurs only in Mexico, and the female of one additional undescribed Glyptocombus species is documented from Mexico.

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“…There may be none, a single anterolateral pair, a more posterior lateral pair, both lateral pairs, and one or two anteromedian apodemes. Among the ametabolous and hemimetabolous insects, sternal apodemes are absent in, for example, Archaeognatha (Bitsch, 1973; Matsuda, 1957), Zoraptera (Hünefeld, 2007), Mantodea and Blattodea (Klass, 2008b; Shankland, 1965), Enicocephalomorpha (Hemiptera; Davranoglou et al, 2017), and Psocodea (Badonnel, 1934). A single lateral pair occurs in Dermaptera (Klass, 2001), and Cicadidae (Hemiptera; Vasvary, 1966).…”

Section: Discussionmentioning

confidence: 99%

The ant abdomen: The skeletomuscular and soft tissue anatomy of Amblyopone australis workers (Hymenoptera: Formicidae)

Lieberman

Billen

Kamp

et al. 2022

Journal of Morphology

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Recent studies of insect anatomy evince a trend towards a comprehensive and integrative investigation of individual traits and their evolutionary relationships. The abdomen of ants, however, remains critically understudied. To address this shortcoming, we describe the abdominal anatomy of Amblyopone australis Erichson, using a multimodal approach combining manual dissection, histology, and microcomputed tomography. We focus on skeletomusculature, but additionally describe the metapleural and metasomal exocrine glands, and the morphology of the circulatory, digestive, reproductive, and nervous systems. We describe the muscles of the dorsal vessel and the ducts of the venom and Dufour's gland, and characterize the visceral anal musculature. Through comparison with other major ant lineages, apoid wasps, and other hymenopteran outgroups, we provide a first approximation of the complete abdominal skeletomuscular groundplan in Formicidae, with a nomenclatural schema generally applicable to the hexapod abdomen. All skeletal muscles were identifiable with their homologs, while we observe potential apomorphies in the pregenital skeleton and the sting musculature. Specifically, we propose the eighth coxocoxal muscle as an ant synapomorphy; we consider possible transformation series contributing to the distribution of states of the sternal apodemes in ants, Hymenoptera, and Hexapoda; and we address the possibly synapomorphic loss of the seventh sternal–eighth gonapophyseal muscles in the vespiform Aculeata. We homologize the ovipositor muscles across Hymenoptera, and summarize demonstrated and hypothetical muscle functions across the abdomen. We also give a new interpretation of the proximal processes of gonapophyses VIII and the ventromedial processes of gonocoxites IX, and make nomenclatural suggestions in the context of evolutionary anatomy and ontology. Finally, we discuss the utility of techniques applied and emphasize the value of primary anatomical research.

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The pregenital abdomen of Enicocephalomorpha and morphological evidence for different modes of communication at the dawn of heteropteran evolution

Cited by 10 publications

References 49 publications

On the morphology and evolution of cicadomorphan tymbal organs

On the morphology and evolution of cicadomorphan tymbal organs

Synopsis of Schizopteridae (Hemiptera, Heteroptera, Dipsocoromorpha) from the United States, with description of seven new species from the US and Mexico

The ant abdomen: The skeletomuscular and soft tissue anatomy of Amblyopone australis workers (Hymenoptera: Formicidae)

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