Aline Barcellos

• Dr
• Researcher at Secretaria do Meio Ambiente e Infraestrutura (Rio Grande do Sul)

Polychromatism is the presence of different colors or color patterns in a population. It is observed in many animal groups, abundantly in insects. Tetyra is a genus of Scutelleridae (jewel and shield bugs) containing five valid species distributed in the Americas. The three Nearctic species Tetyra antillarum (type species), T. bipunctata, and T....

Diapause is a process of decreased metabolic activity in insects. In latitudes with a well-defined cold season, diapause or hibernation is a strategy to survive in periods of resource scarcity. In Pentatomidae, this phenomenon is studied mainly in non-natural environments and with species of economic importance. This work aimed to determine which v...

The presence of the stridulatory structures has been empirically used as a diagnostic character for Pachycorinae, but it is also present in Hoteinae and two genera of Odontotarsinae. The stridulitrum is present mostly on sternites V–VI in Scutelleridae, associated with a plectrum on the hind tibiae. These structures have been recently analysed unde...

The presence of the stridulatory structures has been empirically used as a diagnostic character for Pachycorinae, but it is also present in Hoteinae and two genera of Odontotarsinae. The stridulitrum is present mostly on sternites V-VI in Scutelleridae, associated with a plectrum on the hind tibiae. These structures have been recently analyzed unde...

The neotropical Menenotus Laporte, 1832 includes M. lunatus (Laporte, 1832) and M. diminutus Walker, 1871. The genus has never been reviewed, and only the brief original descriptions were available so far. In this paper, we review Menenotus and describe, for the first time, genital traits of both sexes. Menenotus lunatus and M. diminutus are distin...

Harmostes Burmeister, 1835 (Rhopalidae, Rhopalinae) comprises 32 species distributed from Canada to southern South America. From the analysis of material deposited in collections, we identified and diagnosed the species of Harmostes from the state of Rio Grande do Sul. Among the analyzed material, seven species of Harmostes are included, six of the...

Coptochilus Amyot & Serville, 1843 is distinguishable from the other Neotropical Scutelleridae by the dorsally concave head, with lateral margins of mandibular plates elevated. Here we describe and revise the species of Coptochilus based on general and genital morphological traits. Coptochilus castaneus (Dallas, 1851), once synonymous with C. ferru...

Among the 32 tribes of Coreinae currently recognized, Spartocerini comprises 66 extant species distributed in six genera: Euagona Dallas, Eubule Stål, Menenotus Laporte, Molchina Amyot & Serville, Sephina Amyot & Serville and Spartocera Laporte, distributed exclusively in the Western Hemisphere. We performed cladistic analyses using equal (EW) and...

Coptochilus Amyot & Serville, 1843 is distinguishable from the other neotropical scutelleridae by the dorsally concave head, with lateral margins of mandibular plates elevated. Here we describe and revise the species of Coptochilus based on general and genital morphological traits. Coptochilus castaneus (Dallas, 1851), once synonymous with C. ferru...

Hoplonannus McAtee & Maloch, 1925 comprises three species described from Central America. Females of all these species are known only from brachypterous specimens. This paper describes the first South American species of the genus, Hoplonannus australis sp. nov. The new species differs from its congeners, in females, by the submacroptery, presence...

A new species of Reduviidae (Hemiptera: Heteroptera) from Caatinga ecosystem, Pyrrhosphodrus caatingensis Lapischies & Forero sp. nov., is described. The new species is distinguished from its congeners by its overall reddish coloration with black areas; by the black legs, with femora with a subapical yellowish broad ring, tibiae with apical and sub...

Pachycoris torridus (Scopoli) and P. klugii Burmeister are two widespread, colorful and well known neotropical Pachy-corinae, with partial sympatry in southern Mexico and Central America. Both species are polychromatic, which is why they each present a long list of synonyms. However, with exception of papers describing their different color morphs,...

A new species belonging to the subgenus Laevivilga is described, as well as the female of Vilga (L.) sanctipauli and male of V. (L.) brasiliensis that were unknown until now. We complement original descriptions, update the distribution records and include the new species in the Dolling's identification key to species of Vilga.

The genus Anhanga Distant, 1887 is a monotypical taxon erected for A. modesta Distant, 1887. Access to the photographs of the type specimen allowed us to identify three females and one male belonging to this genus. Here we redescribe the genus and the species and provide a detailed description of the genitalia of both sexes. Considering Distant's o...

Scutelleridae Leach includes three subfamilies, 25 genera, and almost 100 species in the Neotropics. Both subfamilies Scutellerinae and Elvisurinae are represented by a single genus, and Pachycorinae contains the majority of the species. Neotropical shield bugs are usually dull colored, but polymorphisms and sexual dimorphisms have caused a conside...

Scutelleridae Leach includes three subfamilies, 25 genera, and almost 100 species in the Neotropics. Both subfamilies Scutellerinae and Elvisurinae are represented by a single genus, and Pachycorinae contains the majority of the species. Neotropical shield bugs are usually dull colored, but polymorphisms and sexual dimorphisms have caused a conside...

SCUTELLERIDAE Resumen Se presenta una revisión de la fauna argentina de Scutelleridae, basada en la literatura y datos de colecciones científicas. Se registran 24 especies en 13 géneros, de los cuales un género pertenece a Scutellerinae y los demás a Pachycorinae. Se presenta una breve revisión sobre la sistemática, distribución y biología del grup...

The five instars of Tingis (Tingis) americana Drake are described and illustrated, with emphasis on the ontogenetic changes of integumentary structures. The study was performed using scanning electron microscopy.

A nymph of Thaumamannia Drake & Davis, 1960, a rare vianaidine genus known only from adults, is described by the first time. The specimens were collected in the soil and walls of caves located in the state of Pará, Brazil. This is the first record of Vianaidinae for Brazil. The T. vanderdrifti fifth instar is compared with the same stadium of Anomm...

We provide a commented and referenced list on the type material deposited in the “Museu de Ciencias Naturais, Fundação Zoobotânica do Rio Grande do Sul”, Porto Alegre, Brazil. Geographic coordinates are available on a digital repository for free access. High-resolution images of the specimens are available under request.

Nymphs and adults of Tingis americana Drake, 1922 were found feeding on leaves of Handroanthus heptaphyllus (Vell.) Mattos and Handroanthus chrysotrichus (Mart. ex A. DC.) Mattos in the Botanic Garden, Porto Alegre, state of Rio Grande do Sul, Brazil. This is the first record of T. americana on these host plants and in the southern Brazil. We aimed...

Tussocks of Andropogon bicornis (Poaceae) make up a significant part of the landscape of the rice-growing region of south Brazil. However, little is known about their role in maintaining insect diversity in anthropized regions. We tested the hypothesis that A. bicornis is a hibernation site for Pentatomoidea (Hemiptera: Heteroptera) by analyzing th...

The five instars of Teleonemia scrupulosa Stål are described. The postembryonic ontogenetic development of integumentary structures is emphasized, with a discussion on its potential use in cladistic studies within Tingidae.

The rice stalk stink bug, Tibraca limbativentris Stål (Hemiptera: Pentatomidae), is a major pest of rice crops throughout Latin America. We investigated the occurrence of diapause in T. limbativentris, as well as the role of West Indian foxtail, Andropogon bicornis L.(Poaceae), in its seasonal abundance and mortality. This plant grows spontaneously...

A two-year study was carried out to evaluate the composition, abundance and species richness of Miridae from Parque Estadual do Turvo, municipality of Derrubadas, state of Rio Grande do Sul, Brazil. Samplings were made in the springs of 2003 and 2004 (October), and autumns of 2004 and 2005 (May), using a beating tray method, along two trails of the...

A new species of Dichelops (Dichelops) Spinola is described, based upon morphological characters. D. (D.) australis sp. nov. is compared with D. (D.) bicolor Distant, D. (D.) avilapiresi Grazia, and D. (D.) pradoi Grazia. Comparative illustrations of external genitalia are provided. A revised key to separate the species of the subgenus Dichelops is...

The coreoid fauna from Neotropics is poorly known, especially in terms of community studies. Aiming at contributing to this knowledge, a two-year study was carried out at Parque Estadual do Turvo, Municipality of Derrubadas, state of Rio Grande do Sul, Brazil, to evaluate the composition, abundance and species richness of Coreoidea. Samplings were...

The neotropical genus Poriptus Stål, 1861 is revised, based upon morphological characters. Poriptus tobago sp. nov. is described from the Caribbean. Illustrations and a key to species are provided.

Abundance and species richness of Heteroptera (Hemiptera) from Parque Estadual do Turvo, southern Brazil: Pentatomoidea. A two-year study was carried out at Parque Estadual do Turvo, Municipality of Derrubadas, southern Brazil, aiming to evaluate the composition, abundance and species richness of Pentatomoidea. Samplings were conducted in the Sprin...

The composition, abundance and diversity of predatory insects occurring on canopies of Citrus sinensis Tenore var. Montenegrina, in Montenegro, State of Rio Grande do Sul, Brazil, were studied from March 2004 to March 2005. A total of 658 predaceous insects were collected, representing 51 species from ten families and five orders, Coleoptera, Hymen...

Three new species of Neotibilis Grazia & Barcellos are described from Brazilian Amazon region and Ecuador, based on general and genital morphology: Neotibilis (Neotibilis) claviformis sp. nov., Neotibilis (Neotibilis) ecuadorensis sp. nov. and Neotibilis (Neotibilis) manauara sp. nov. Illustrations and a key to species of the type subgenus are give...

The eggs and five nymphal instars of Phloea subquadrata Spinola, 1837 are described and illustrated. Three new host plants are registered, and data on the development and biology of the insect are provided and discussed.

Taurocerus Amyot & Serville, 1843 is revised based on morphology of male and female genitalia. Four species are recognized: T. edessoides (Spinola, 1837), T. achiles Stål, 1862, T. abruptus (Walker, 1867), and T. amazonensis sp. nov. Illustrations of male and female genitalia and a key for the species are provided.Taurocerus Amyot & Serville, 1843...

A new genus, Pentatomiana, and a new species, P. beckerae, are described, based on specimens from Rio de Janeiro and Santa Catarina States, Brazil. Brachyptery is present in the males of the new species. Pentatomiana gen. nov. is compared with Lojus McDonald, 1982, which also presents brachyptery in one of the species, but in females. Illustrations...

Brachystethus Laporte, 1832 is revised. Brachystethus coxalis Breddin, 1904, B. cribrus (Fabricius, 1781), B. geniculatus (Fabricius, 1787), B. improvisus Breddin, 1905, B. rubromaculatus Dallas, 1851, B. signoreti Stål, 1872, B. tricolor Bolívar, 1879, B. vexillum Breddin, 1903 and B. vicinus Signoret, 1851 are redescribed based on morphological c...

In this paper, Brachystethus Laporte, 1832 is analyzed cladistically, using 21 characters and 15 taxa, including as outgroups, in a first analysis, the genera Neotibilis Grazia & Barcellos, 1994,Edessa Fabricius, 1803, Olbia Stål, 1862, Peromatus Amyot & Serville, 1843, and Pantochlora Stål, 1870. Further, these edessine genera were included in the...

Triatoma oliveirai (neiva, Pinto & Lent, 1939) is redescribed. the adult and the genitalia of both sexes are described and illustrated.