Over 170 years later: redescription of the genus Glyphuchus Stål (Hemiptera: Pentatomidae: Discocephalinae), with the first description of the male DOI
Guilherme Enrique Luisi López, Renan Carrenho, Cristiano F. Schwertner

et al.

Zootaxa, Journal Year: 2023, Volume and Issue: 5263(3), P. 401 - 410

Published: April 6, 2023

The rare Neotropical Discocephalini (Heteroptera: Pentatomidae) monotypic genus Glyphuchus Stål, 1860 and its type species sculpturatus are known only from the female holotype. Here, they redescribed based on a recently collected specimen male of is described for first time in protected area Atlantic Rain Forest, southeastern Brazil. General morphology genitalia compared to those other genera. Photos main morphological characters presented, as well photos living preserved specimens. relevance areas studies biodiversity natural history highlighted.

Language: Английский

Copulatory Mechanics Reveals a Self‐Bracing Mechanism via a Femoral Apophysis in Funnel Weavers (Araneae, Agelenidae) DOI Creative Commons
Alireza Zamani, Rahşen S. Kaya, Kari Kaunisto

et al.

Ecology and Evolution, Journal Year: 2025, Volume and Issue: 15(2)

Published: Feb. 1, 2025

ABSTRACT Spiders utilize an indirect method of sperm transfer via specialized male palpal structures. In entelegyne spiders, these structures exhibit a remarkable complexity, comprising various sclerites that interlock with the female genitalia to provide stability and facilitate transfer. Among four primary coupling mechanisms recognized in one, termed self‐bracing, involves interactions between stabilizing expanded copulatory organ during mating. Such can involve elements are not part organ. The retrolateral tibial apophysis (RTA), characteristic largest group spiders (RTA clade), is most prominent structure for this purpose. However, recent research has demonstrated have lost RTA, other parts palp, specifically femoral apophyses, be involved self‐bracing. presence fapophysis uncommon only few taxa possess apophyses on multiple articles, i.e., tibia femur, interaction evolution which remain elucidated. This study investigated function different first time using funnel weaver Anatextrix monstrabilis (Agelenidae). We examined hypothesis self‐bracing despite RTA. Micro‐computed tomography data cryofixed mating pair revealed at least one functions by fitting into groove embolic base, representing second documented case unique mechanism spiders. Furthermore, scanning electron microscopy previously undocumented features , including epigynal fovea, anterior hood, well‐developed lateral margins, potentially play role interlocking copulation. contrast ghost (Anyphaenidae), known exhibiting species demonstrate notable differences regard size shape apophyses. Thus, our indicates structures, do contact genital coupling, subject strong selection pressures similar somatic beyond basic

Language: Английский

Citations

1
Mosaic Evolution of Grasping and Genital Traits in Two Sympatric Scorpion Species with Reproductive Interference DOI
Mariela A. Oviedo‐Diego, Camilo I. Mattoni,

Fedra Bollatti

et al.

Evolutionary Biology, Journal Year: 2024, Volume and Issue: 51(1), P. 124 - 148

Published: Jan. 27, 2024

Language: Английский

Citations

2
Exploring Phylogenetic Relationships of the Mecocephala Group (Hemiptera: Pentatomidae) Using Continuous and Discrete Characters, with Notes on Taxonomy DOI
Lurdiana Dayse de Barros, Kim Ribeiro Barão, Jocélia Grazia

et al.

Neotropical Entomology, Journal Year: 2024, Volume and Issue: 53(4), P. 786 - 832

Published: July 2, 2024

Language: Английский

Citations

1
Comparative morphology of clasping structures in predator stink bugs (Hemiptera: Pentatomidae: Asopinae): Insights into their function and evolution DOI
Talita Roell, Bruno C. Genevcius, Luiz Alexandre Campos

et al.

Arthropod Structure & Development, Journal Year: 2020, Volume and Issue: 57, P. 100949 - 100949

Published: May 15, 2020

Language: Английский

Citations

8
Copulatory function and development shape modular architecture of genitalia differently in males and females DOI
Bruno C. Genevcius, Monique Nouailhetas Simon, Tamara Moraes

et al.

Evolution, Journal Year: 2020, Volume and Issue: 74(6), P. 1048 - 1062

Published: April 20, 2020

Genitalia are multitasking structures whose development is mediated by numerous regulatory pathways. This multifactorial nature provides an avenue for multiple sources of selection. As a result, genitalia tend to evolve as modular systems comprising semi-independent subsets structures, yet the processes that give rise those patterns still poorly understood. Here, we ask what relative roles and function in shaping within populations across species stink-bugs. We found male less integrated, more modular, primarily shaped functional demands. In contrast, females show higher integration, lower modularity, predominant role developmental processes. Further, interactions among parts each sex determinant modularity than between sexes, equivalent species. Our results strongly indicate have been subjected sex-specific selection, although female homologous functionally associated. Moreover, seemingly constant evolutionary history stink-bugs, suggesting scenario multivariate stabilizing selection sex. study demonstrates genital same may be fundamental evolution previously thought.

Language: Английский

Citations

7
The genus Parahypatropis Grazia & Fernandes, with description of two new species and description of a new similar monotypic genus (Hemiptera: Pentatomidae) DOI
Lurdiana Dayse de Barros, Ricardo Brugnera, Kim Ribeiro Barão

et al.

Journal of Natural History, Journal Year: 2020, Volume and Issue: 54(15-16), P. 1045 - 1071

Published: April 17, 2020

We present a taxonomic revision of Parahypatropis Grazia and Fernandes, 1996, with the description two new species: occultata sp. nov. similis The generic diagnosis is modified to accommodate species. Also, Prolatucoris mandibulatus gen. et described. Comparative illustrations genitalia, distributional map described species, key species are provided.http://www.zoobank.org/urn:lsid:zoobank.org:pub:92375BC6-CC64-4B72-B8E6-EF5B99A2A0E6

Language: Английский

Citations

5
Evolution of reproductive structures for in‐flight mating in thynnine wasps (Hymenoptera: Thynnidae: Thynninae) DOI
Thomas L. Semple, Marta Vidal‐García, Nikolai J. Tatarnic

et al.

Journal of Evolutionary Biology, Journal Year: 2021, Volume and Issue: 34(9), P. 1406 - 1422

Published: July 14, 2021

Abstract Thynnine wasps have an unusual mating system that involves concurrent in‐flight copulation and nuptial feeding of wingless females by alate males. Consequently, thynnine genitalia play a multifunctional role likely been subject to various different selective pressures for both reproductive success food provisioning. Here, we present new molecular phylogeny the Australian Thynninae use 3D‐geometric morphometrics comparative methods investigate morphological evolution select genital structures across group. We found significant integration between all male female analysed, which is influenced sexual selection, but also isolation requirements mechanical constraints. The morphology primary coupling was correlated with body size, exhibited strong negative size allometry. Those evolved at similar evolutionary rates, whereas appear higher degree novelty over time. conclude unique strategies resulted in complex patterns their morphology, has played central extensive diversification subfamily Australasia South America. Our study reinforces need treat composite characters such as component parts, consider roles studies.

Language: Английский

Citations

3
Molecular and Developmental Signatures of Genital Size Macro-Evolution in Bugs DOI Creative Commons
Bruno C. Genevcius, Denis C Calandriello, Tatiana Teixeira Torres

et al.

Molecular Biology and Evolution, Journal Year: 2022, Volume and Issue: 39(10)

Published: Oct. 1, 2022

Abstract Our understanding of the genetic architecture phenotypic traits has experienced drastic growth over last years. Nevertheless, majority studies associating genotypes and phenotypes have been conducted at ontogenetic level. Thus, we still an elusive knowledge how these genetic-developmental architectures evolve themselves their evolution is mirrored in change across evolutionary time. We tackle this gap by reconstructing male genital size, one most complex insects, together with its underlying architecture. Using order Hemiptera as a model, spanning 350 million years evolution, estimate correlation between genitalia three features: development rate, body rates DNA substitution 68 genes associated development. demonstrate that size macro-evolution largely dependent on weakly influenced rate phylogenetic history. further revealed significant correlations mutation for 19 genes. Interestingly, diverse functions participate distinct signaling pathways, suggesting trait whose fast enabled molecular changes morphogenetic processes. data correlated shaped negative selection or neutral evolution. terms sequence are predominantly facilitated relaxation constraints rather than positive selection, possibly due to high pleiotropic nature

Language: Английский

Citations

2
Taxonomic updates on the Mecocephala group (Hemiptera: Pentatomidae): redescription of Mecocephala Dallas and Paramecocephala Benvegnú DOI
Lurdiana Dayse de Barros, Kim Ribeiro Barão, Jocélia Grazia

et al.

Journal of Natural History, Journal Year: 2021, Volume and Issue: 55(43-44), P. 2691 - 2747

Published: Nov. 17, 2021

We present here the taxonomic revision of Mecocephala Dallas, 1851 Dallas WS. Gray, JE ed. List specimens hemipterous insects in collection British Museum. London I; p. 390 https://wellcomecollection.org/works/vjc74qcr, 15 pls. [Google Scholar] and Paramecocephala Benvegnú, 1968 (Hemiptera: Pentatomidae: Pentatominae), updating genitalic terminology. A differential diagnosis each genus all its members is provided, a new species described from female: P. helenae sp. nov. Brazil. Photographs type genitalia, occurrence maps with records, an updated key for both genera are also provided.https://urn:lsid:zoobank.org:pub:6D63D5B2-55A2-4465-852F-EEDA37FEF12B

Language: Английский

Citations

2
Mosaic evolution of grasping and genitalic traits in two sympatric scorpion species with reproductive interference DOI Creative Commons
Mariela A. Oviedo‐Diego, Camilo I. Mattoni,

Fedra Bollatti

et al.

Research Square (Research Square), Journal Year: 2023, Volume and Issue: unknown

Published: Jan. 9, 2023

Abstract Reproductive interference (RI) can occur when two related species coexist in sympatry, involving sexual attraction, mating, and even hybridization between heterospecifics. Consequently, reproductive key characters of these may suffer morphological shifts sympatry to avoid the success heterospecific interactions, a phenomenon known as character displacement (RCD). RCD be promoted by natural selection, although selection pressures act synergistically or agonistically so that phenotypic variation respond different directions magnitudes forces. In turn, size shape differentially (mosaic evolution) pressures, analysis multiple dimensions traits is essential understand complexity their variability. To date, there are no studies evaluating this topic scorpions, ( Urophonius brachycentrus U. achalensis ) sympatric synchronous with RI represent an ideal model evaluate occurrence RCD. addition, populations found altitudinal cline, environmental factors also responsible for explaining variation. We compared intra-specific variation, involved courtship, sperm transfer individuals from allopatric using geometric morphometrics. asymmetric several courtship (grasping structures) (genital characters). This would evidence action existence possible mechanism mating success. we pattern where one zone suffered increase due (pattern convergence). The convergence combined scramble competition system could intensify on specific characters, which was reflected high coefficients Our results suggest zone, selective regimes various evaluated, support mosaic evolution. comprehensive study illuminates inherent evolution multi-functional previously unexplored model, providing novel insights under animal systems experimenting RI.

Language: Английский

Citations

0