Novo gênero e espécie de Proconiini (Homoptera, Cicadellidae)

Cavichioli, Rodney Ramiro; Sakakibara, Albino M.

doi:10.1590/s0101-81751989000100018

Cited by 7 publications

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“…He considered Acrogonia to differ significantly from the rest of Proconiini, showing affinities with Cicadellini. In a morphology‐based cladistic analysis (Mejdalani, 2000) focused on only those genera of Proconiini in which the posterior coxal meron is not concealed by the forewings at rest (a partition suggested by Young, 1968), the above group of genera formed one clade, also containing Cleusiana , a monotypic genus not included in this study (Cavichioli & Sakakibara, 1989), and two genera in which no indication of egg‐powdering was found: Tretogonia and Cyrtodisca . Acrogonia was recovered in a different clade and Cuerna was not included in the analysis because it has the posterior meron concealed.…”

Section: Discussionmentioning

confidence: 99%

“…The tribe is endemic to the New World and comprises c . 400 predominantly tropical species currently grouped into 57 genera (Young, 1968, 1977; Cavichioli & Sakakibara, 1989). Like other cicadellines, species of this group feed on xylem sap (Brodbeck , Mizell & Andersen, 1993), typically on a broad range of plant hosts (Turner & Pollard, 1959).…”

Section: Introductionmentioning

confidence: 99%

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Powdering of egg nests with brochosomes and related sexual dimorphism in leafhoppers (Hemiptera: Cicadellidae)

Rakitov

2004

Zoological Journal of the Linnean Society

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Leafhoppers from 16 New World genera currently placed in the tribes Proconiini (13) and Cicadellini (2) of the subfamily Cicadellinae, in the subfamily Phereurhininae (1), and one undescribed genus exhibit a suite of morphological specializations associated with a unique type of maternal care. The females produce a specific type of brochosomes (secretory particles manufactured in the Malpighian tubules of most leafhoppers and usually forming a non-sex-specific hydrophobic coating of the integument), which they store prior to oviposition on their forewings in the form of pellets and then apply as a powdery coating to the egg clusters placed under the epidermis of leaves or, in one genus, exposed. The function of the brochosome coating is unknown, but may include protection of eggs against parasitoids and pathogens, and facilitating gas exchange. Observations on several species from the genera Phera, Homalodisca, Oncometopia, Quichira, Cuerna, and the undescribed genus are reported, complementing scanty existing data on this behaviour. Its taxonomic occurrence is described for the first time based on study of collections, where ready-tooviposit females are occasionally preserved with pellets of brochosomes on their forewings. A comprehensive survey of associated female-specific structural modifications is presented based on examination of c. 80 predominantly Neotropical species. These modifications include (1) production of modified brochosomes (2) modified setation of the forewing area upon which pellets of such brochosomes are placed, and (3) elongation of the metathoracic tibial macrosetae, which transfer the brochosomes onto the egg nest. The traits are absent or rudimentary in males. The specialized brochosomes display remarkable interspecific diversity and can be used for taxonomic identification of eggs. Egg-powdering apparently has evolved as a modification of the anointing and grooming behaviours involved in making coatings of integumental brochosomes in most leafhoppers. Morphological similarity, extending to characters not related to oviposition, suggests that all genera containing 'powdering' species may form a single lineage, but this hypothesis yet needs to be tested by phylogenetic analyses. Several such genera include species displaying powdering-associated traits and species lacking these, suggesting multiple independent losses or origins of powdering. This peculiar kind of maternal care provides an interesting model for study of the evolution of novel functional complexes of traits.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Powdering of egg nests with brochosomes and related sexual dimorphism in leafhoppers (Hemiptera: Cicadellidae)

Rakitov

2004

Zoological Journal of the Linnean Society

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“…Sharpshooters are members of the cosmopolitan Cicadellinae, the third largest leafhopper subfamily, with over 2200 valid species among 327 genera. Sixty-two of these genera, and 425 species, belong to the New World tribe Proconiini (Young 1968, Cavichioli and Sakakibara 1989, Mejdalani and Emmrich 1998, Marucci et al 2002, Godoy 2005, Rakitov and Godoy 2005, McKamey 2007, which includes the genus Diestostemma Amyot & Serville.…”

Section: Introductionmentioning

confidence: 99%

Description of a new, unusual species of Diestostemma Amyot & Serville (Hemiptera, Cicadellidae) from Ecuador

McKamey¹

2020

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Eight new species of Oragua Melichar, 1926 (Insecta: Hemiptera: Cicadellidae) from Amazonas State, Brazil, with description of the female terminalia of Oragua jurua Young, 1977, and new records for the genus

Camisão

Cavichioli

Takiya

2014

Zootaxa

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The thirty known species of Oragua are distributed from southern Mexico to Argentina. Seventeen species are recorded from Brazil, but only O. elegantula Young, 1977, O. insipida Young, 1977, and O. jurua Young, 1977 are recorded from Amazonas State. Oragua partitula (Jacobi, 1905) is herein firstly recorded from Brazil, ocurring in Amazonas State. The aim of the study was to describe eight new species of Oragua, to provide a key to males of the species of the genus that are recorded from Amazonas State and to study in detail the female terminalia of these new species. Also, the female of O. jurua Young, 1977 is herein described for the first time. Oragua alerochae sp. nov. has the external color pattern similar to O. bifasciata Cavichioli, 2000, however, the head is darker, the forewings are paler and the stripes are thinner, aedeagus is much more curved with long apical processes, and apex of paraphyses rami are curved. Oragua aurantimaculata sp. nov. is similar externally to O. elegantula and Oragua jau sp. nov. as they share the body brown with three orange maculae on crown and orange maculae on forewings, but it has the aedeagus with shaft enlarged medially with a pair of apical processes curved anteriorly and connective more slender. Oragua bella sp. nov. is dark with orange spots, aedeagus with basal elongated processes extending to the apex of the pygofer, with the basal portion enlarged and narrowing toward the apex. Oragua copiosa sp. nov. is dark with small pale dots all over the body, paraphyses rami are slender and their apices expanded, and styles with hooked apex, extending posteriorly beyond the connective apex. Oragua gracilenta sp. nov. has the external color similar to O. galerula, but it can be distinguished by the brown ground color, absence of two maculae near median line just before posterior margin on pronotum and apex of rami of paraphyses bifurcate and not truncate. Oragua jau sp. nov. has the external color similar to O. elegantula, but the aedeagus is curved and slender with a pair of small lateral processes at the apex and very thin paraphyses rami bifurcating only in the final portion, with the length of the rami just one third of the total length. Oragua schwertineri sp. nov. has the external color similar to O. insipida, however the male genitalia differs from the latter by the lack of paraphyses and aedeagus with pair of basal processes curved dorsally and shaft with pair of apical lateral processes. Oragua unifasciata sp. nov. is dark brown with pale spots over the body with a pale transverse stripe over the anteapical cells and paraphyses stem slender and abruptly broadened at apical two thirds, with rami robust and flattened with posterior margin serrate with large and irregular tooth-like projections. This work raises the number of Oragua species occurring in Amazonas State from three to twelve.

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Novo gênero e espécie de Proconiini (Homoptera, Cicadellidae)

Cited by 7 publications

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Powdering of egg nests with brochosomes and related sexual dimorphism in leafhoppers (Hemiptera: Cicadellidae)

Powdering of egg nests with brochosomes and related sexual dimorphism in leafhoppers (Hemiptera: Cicadellidae)

Description of a new, unusual species of Diestostemma Amyot & Serville (Hemiptera, Cicadellidae) from Ecuador

Eight new species of Oragua Melichar, 1926 (Insecta: Hemiptera: Cicadellidae) from Amazonas State, Brazil, with description of the female terminalia of Oragua jurua Young, 1977, and new records for the genus

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Novo gênero e espécie de Proconiini (Homoptera, Cicadellidae)

Cited by 7 publications

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Powdering of egg nests with brochosomes and related sexual dimorphism in leafhoppers (Hemiptera: Cicadellidae)

Powdering of egg nests with brochosomes and related sexual dimorphism in leafhoppers (Hemiptera: Cicadellidae)

Description of a new, unusual species of Diestostemma Amyot &amp; Serville (Hemiptera, Cicadellidae) from Ecuador

Eight new species of Oragua Melichar, 1926 (Insecta: Hemiptera: Cicadellidae) from Amazonas State, Brazil, with description of the female terminalia of Oragua jurua Young, 1977, and new records for the genus

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Description of a new, unusual species of Diestostemma Amyot & Serville (Hemiptera, Cicadellidae) from Ecuador