Ghilianella beckeri sp. nov. of Emesinae from Brazil (Hemiptera, Reduviidae)

Gil-Santana, Hélcio R.

doi:10.1590/s0085-56262009000100003

Cited by 3 publications

(3 citation statements)

References 2 publications

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“…The observation of the endosomal sclerotizations depends of the eversion of the endosoma, and this procedure carry on a high risk of damage of the structure that probably have been the cause of the poor documentation of the endosomal processes in the tribe. For this reason, the interpretation of the symmetric and asymmetric genitalia is still a problematic topic (e.g., Ghilianella beckeri Gil-Santana, 2009).…”

Section: Discussionmentioning

confidence: 99%

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Comparative genitalic morphology in ten genera of thread-legged bugs of the tribe Metapterini, and its phylogenetic importance (Hemiptera: Heteroptera: Reduviidae)

Castro‐Huertas¹,

Forero²,

Grazia³

2018

aemnp

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The assassin bug tribe Metapterini belongs to the subfamily Emesinae (Hemiptera: Heteroptera: Reduviidae). Morphologically, it is characterized by the conspicuous basal process of the posteroventral series in the foreleg and the presence of wing polymorphism, with a high proportion of the genera with micropterous or apterous species. Here, the male and female ectodermal genitalic structures are documented for ten genera and twenty-three species of Metapterini, including eight species of the speciose genus Ghilianella Spinola, 1850. Descriptions and digital macrophotographs are provided for abdominal segment 8, pygophore, parameres, and phallus of the male, and for tergite 8, tergite 9, gonocoxae, gonapophyses, gonoplac, and bursa copulatrix of the female. The asymmetric male genitalia within Emesinae are discussed. From this morphological documentation sixty six phylogenetic characters are coded, presented as a data matrix and analyzed cladistically, and their potential usefulness for resolving relationships among Metapterini is discussed.

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Section: Discussionmentioning

confidence: 99%

“…Tergite 8 and tergite 9 were previously illustrated or described for 22 genera and several species within Metapterini (e.g. MALDONADO CAPRILES (1960): Ghilianella and Ghinallelia; WYGODZINSKY (1966) GIL-SANTANA (2009) and GIL-SANTANA et al (2009): Ghilianella beckeri and Ghinallelia talitae; etc. ).…”

Section: Female Genitaliamentioning

confidence: 98%

Comparative genitalic morphology in ten genera of thread-legged bugs of the tribe Metapterini, and its phylogenetic importance (Hemiptera: Heteroptera: Reduviidae)

Castro‐Huertas¹,

Forero²,

Grazia³

2018

aemnp

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“…Metapterini Stål is one of the six tribes of Emesinae; it has a worldwide distribution, with 28 genera and approximately 280 described species (Maldonado Capriles, 1990, 1993; Ishikawa, 2000, 2002; Gil‐Santana et al ., 2005, 2009; Forero, 2007; Rédei, 2007; Gil‐Santana, 2009). Morphologically, Metapterini have been characterized by the presence of a conspicuous basal process on the posteroventral series of the proleg, a shared feature with Deliastini Villiers (Wygodzinsky, 1966).…”

Section: Introductionmentioning

confidence: 99%

Evolution of wing polymorphism and genital asymmetry in the thread‐legged bugs of the tribe Metapterini Stål (Hemiptera, Reduviidae, Emesinae) based on morphological characters

Castro‐Huertas

Forero

Grazia

2020

Systematic Entomology

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Wing polymorphism and asymmetric male genitalia are intriguing morphological phenomena occurring in insects. Among Emesinae, or thread‐legged bugs, the tribe Metapterini Stål exhibits these two interesting morphological attributes. Nonetheless, evolutionary interpretations of these phenomena cannot be put forward because phylogenetic hypotheses for Emesinae are lacking. Thread‐legged bugs are easily recognized among assassin bugs due to their elongated and seemingly delicate body. The tribe Metapterini has 28 genera and approximately 280 described species. The only available phylogenetic hypothesis among Emesinae tribes was proposed by Wygodzinsky (1966), and it hypothesized Deliastini Villiers as the sister group of Metapterini, although this hypothesis has never been tested with cladistic approaches. Recent analyses using character sets of genitalia and prolegs suggest that Metapterini might not be monophyletic. In order to test these ideas, we compiled a morphological dataset of 138 characters that includes external morphological characters, detailed features of prolegs and genitalia of both sexes for Metapterini, which were analysed cladistically including 55 terminals, comprising 24 genera (85.7% of the generic diversity), 43 species of Metapterini and 12 outgroups. Metapterini was recovered as paraphyletic by the inclusion of Bergemesa Wygodzinsky, Palacus Dohrn and Stalemesa Wygodzinsky, all currently assigned to Deliastini. Gardena Dohrn (Emesini) was recovered as the sister group of Metapterini + Deliastini as suggested by Wygodzinsky (1966). Based on these results, we synonymize Deliastini syn. n. with Metapterini sensu n. and propose two new genera: Bacata Castro‐Huertas & Forero gen. n., for three Andean species previously placed in Liaghinella Wygodzinsky, and Valkyriella Castro‐Huertas & Forero gen. n. for Ghilianella borgmeieri Wygodzinsky. Ancestral state reconstruction of wing polymorphism indicates that males and females were fully winged in the ancestor of Metapterini sensu n. with two independent evolutionary transitions to the apterous and brachypterous conditions. The analysis of the symmetry of the male genitalia shows an ancestor with symmetric male genitalia and two independent emergences of asymmetrical male genitalia in Metapterini.

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Comparative morphology of the raptorial leg in thread-legged bugs of the tribe Metapterini Stål, 1859 (Hemiptera, Heteroptera, Reduviidae, Emesinae)

2019

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Ghilianella beckeri sp. nov. of Emesinae from Brazil (Hemiptera, Reduviidae)

Cited by 3 publications

References 2 publications

Comparative genitalic morphology in ten genera of thread-legged bugs of the tribe Metapterini, and its phylogenetic importance (Hemiptera: Heteroptera: Reduviidae)

Comparative genitalic morphology in ten genera of thread-legged bugs of the tribe Metapterini, and its phylogenetic importance (Hemiptera: Heteroptera: Reduviidae)

Evolution of wing polymorphism and genital asymmetry in the thread‐legged bugs of the tribe Metapterini Stål (Hemiptera, Reduviidae, Emesinae) based on morphological characters

Comparative morphology of the raptorial leg in thread-legged bugs of the tribe Metapterini Stål, 1859 (Hemiptera, Heteroptera, Reduviidae, Emesinae)

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