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Janeirona Distant, 1911 is a Neotropical pentatomid genus restricted to South America that was recently transferred from Pentatominae to Ochlerini (Discocephalinae). Janeirona was described for one species, and during the 20th century other five species were allocated in the genus. In this study we redescribe Janeirona and its known species, and propose two new synonyms: Serdia stali Kormilev, 1956 as junior synonym of Janeirona insignis Distant, 1911, and Janeirona asaroana Brailovsky, 1988 as junior synonym of Janeirona costalimai (Pirán, 1962). We describe four new species: Janeirona aurea Sampaio & Campos sp. nov., Janeirona flavipes Sampaio & Campos sp. nov., Janeirona roellae Sampaio & Campos sp. nov., and Janeirona stenosa Sampaio & Campos sp. nov.. An identification key to the species and distribution maps are given.

When examining specimens of the Janeirona Distant, 1911 clade of Ochlerini (Discocephalinae) we found males and females of two undescribed species. Though clearly similar to the genera in the Janeirona clade, these two species lack the diagnostic characteristics of any of them. We made a cladistic analysis to verify the placement of the two new species in Discocephalinae. A total of 38 taxa and 60 morphological characters were included in the analysis. Character polarization followed the outgroup comparison method, and the most parsimonious trees were calculated in TNT using an implied weighting approach. The analysis resulted in one most parsimonious tree where the two new species form a monophyletic group within the Ochlerini, sister to Janeirona. We propose Paropsocolis Sampaio & Campos, gen. nov. for the two new species Paropsocolis convergens Sampaio & Campos, sp. nov. and Paropsocolis divergens Sampaio & Campos, sp. nov.. The new genus is recognized by having an inconspicuous labial intercalary segment, metasternum anteriorly carinated, parameres with a basal dish-shaped process and a bifurcated apex, theca with one apical ventral process, endosoma with one dorsal and one ventral processes, laterotergites IX surpassing the mediotergite VIII, and thickening of vaginal intima circular. P. convergens Sampaio & Campos, sp. nov. and P. divergens Sampaio & Campos, sp. nov. are described to Brazil. A distributional map is provided.

The Asopinae comprises about 300 species and 63 genera of predatory stinkbugs, of which around 100 species and 23 genera occur in the Neotropical region. The species of the Neotropical genus Heteroscelis Latreille, 1829 are easily recognized by the small size, vivid and often iridescent colors, the elongated head, and the foretibial foliaceous expansions. In this work we provide a taxonomic revision of Heteroscelis. The genus and its four known species are redescribed, and one new species from Colombia, Heteroscelis vandembergi Sampaio & Campos, sp.nov., is proposed. A distribution map, and a key to the species of Heteroscelis are presented.

We present an annotated and illustrated type catalogue of the predacious shieldbugs (Hemiptera: Heteroptera: Pentatomidae: Asopinae), housed in the collection of the Natural History Museum, London. This work involves recognising types and their status, recording their label data and providing images of both the types and their labels. Although we personally refrain from designating lectotypes as the International Code of Zoological Nomenclature recommends that it should be done "as part of a revisionary or other taxonomic work" (ICZN 1999: Recommendation 74G), we have nevertheless accepted that lectotypes were designated before 2000 (see ICZN 1999: Art. 74 §§ 5 and 6), for the following 43 species: by Distant (1880) for Apateticus halys Dallas, Arma fuscescens Dallas, Arma modesta Dallas, Arma tincta Dallas, Oplomus rutilus Dallas, Oplomus ventralis Dallas, Stiretrus ornatus Dallas, Stiretrus ruficeps Dallas; by Synave (1969) for Mecosoma floridum Distant and Podisus volxemi Distant; by Thomas (1992) for Arma ampla Walker, Arma grandis Dallas, Arma lateralis Walker, Arma nigrispina Dallas, Arma obscura Dallas, Mormidea semialba Walker, Oplomus equestris Distant, Oplomus festivus Dallas, Oplomus nigripennis Dallas, Oplomus pulcher Dallas, Oplomus stellatus Distant, Oplomus violaceus Dallas, Platynopus conspersus Walker, Podisus amulae Distant, Podisus falcatus Distant, Podisus gaumeri Distant, Podisus insignis Distant, Podisus nigriventris Distant, Podisus sculptus Distant, Podisus smithi Distant, Stiretrus annulatus Distant, Stiretrus caeruleus Dallas, Supputius typicus Distant, Tynacantha marginata Dallas, Tynacantha splendens Distant, Zicrona cuprea Dallas and Zicrona marginella Dallas; and by Thomas (1994) for Anasida funebris Distant, Damarius bicolor Distant, Neoglypsus opulentus Distant, Neoglypsus viridicatus Distant, Incitatus primus Distant, and Jalloides versicolor Distant. We have also found out that Synave (1969) had designated the lectotype of Glypsus erubescens Distant before Linnavuori (1975). A syntype of Oplomus distinctus Distant, 1880 is located and Thomas's (1992: 57) synonymy of this species with O. catena (Drury, 1782) is confirmed. Informations regarding labels used by the first five curators of Hemiptera at the Natural History Museum, London (Adam White, William S. Dallas, Francis Walker, William L. Distant and William E. China) are provided. In total, we list herein 248 specimens examined in NHMUK (49 holotypes, 41 lectotypes, 84 syntypes, 17 paratypes, 25 paralectotypes, and 32 non-types which are historical specimens), representing 149 nominal species or 104 currently valid species (ca. 34% of the just over 300 valid Asopinae species worldwide).

The Heteroptera (true bugs) and its fourth-largest family Pentatomidae (stink bugs) are worldwide distributed groups with higher diversity in the tropics. The pentatomid subfamily Discocephalinae is almost restricted to the Neotropical Region, and it is divided into the tribes Discocephalini and Ochlerini. Eurystethus Mayr, 1864 is placed within Discocephalini and comprises 18 species, 16 out of them classified into two subgenera. Here we describe Eurystethus jo sp. nov., Eurystethus multipunctatus sp. nov., and Eurystethus rufodorsatus sp. nov., all occurring in Brazil, compare them to other species and provide a distribution map.

This special issue of Zootaxa is published in honor of Dr. Jocélia Grazia (Fig. 1) from the Universidade Federal do Rio Grande do Sul, Brazil, one of the world's most respected and influential active taxonomists in Heteroptera. Though she retired from her long-time position as a Full Professor, away from undergraduate classes and administrative duties, Jocélia is still an active researcher and passionate about studying true bugs. An intense conviction she passes to her many students and becomes evident in her publications. If there is one word to define Jocélia Grazia, it is energy. Even the most novice and inexperienced student perceives the enthusiasm and dedication Jocélia faces from the small bureaucratic problems through the most challenging scientific questions.

The Ochlerini (Discocephalinae) are endemic in the Neotropical region, and the tribe currently contains 38 genera and 149 species. The monotypic Macropygium Spinola, 1837 is the most widespread ochlerine genus in the Americas, ranging from Mexico to Argentina. Macropygium reticulare (Fabricius, 1803) is one of the few Ochlerini of phytosanitary importance, transmitting Phytomonas spp. in palm crops in South America. Nonetheless its wide distribution, and phytosanitary importance, the taxonomy of Macropygium has been neglected. Here we present a revision of Macropygium, revalidate three species, Macropygium spinolae Stål, 1860, REVISED STATUS (removed from the synonymy with M. reticulare), Macropygium bifidum (Westwood, 1837), NEW COMBINATION (removed from the synonymy with M. reticulare), and Macropygium subsulcatum (Amyot Serville, 1843), REVISED STATUS (removed from the synonymy with M. reticulare). We remove Ochlerus guttipes Walker, 1867 from the synonymy with M. reticulare, and propose O. guttipes a new junior synonym of M. spinolae. Finally, we describe one new species, Macropygium graziae Silva Campos, Sp. Nov.. A key for the species of Macropygium is provided.

Some species of Podisus Herrich-Schäffer have a confuse taxonomic history with several modifications and loss of information over time. The genus has been considered a taxonomic dumping ground in Asopinae, and its current species composition is doubtful. After examining the type specimens of Telepta distincta Stål, Arma submarginata Walker, Arma monospila Walker, Arma fuscescens Dallas, Arma caliginosa Walker, Arma turbida Walker and Podisus mellipes Bergroth, we redescribe and revalidate A. fuscescens as Podisus fuscescens rev. stat., previously considered a junior synonym of Podisus sagitta (Fabricius). The taxonomic status, morphology and distribution of P. fuscescens and P. distinctus are updated and illustrated. Arma caliginosa, A. turbida and Podisus mellipes become synonyms of P. fuscescens. Additionally, Arma submarginata Walker is removed from its synonymy with Podisus ventralis (Dallas) and treated as a synonym of P. distinctus. Podisus signoreti Fallou is removed from its synonymy with P. distinctus and treated as species inquirenda.

Here, Tynacantha Dallas is revised and two new species are described from Brazil: T. cuprea Brugnera Grazia sp. nov. and T. umeridenigrata Brugnera Grazia sp. nov. The type material is analyzed, figures, illustrations, a distributional map and a key to the species are provided. The color variation found in T. marginata is also discussed.

Since the phylogenetic analysis of the Herrichella clade (Ochlerini) new genera were described to fit monophyletic groups inferred and considered to be new taxa. The clade I supported by two synapomorphies of the female genitalia, grouped Alitocoris brunneus Sailer together to two new species. Alloeogyna gen. nov. is described here for this clade including the two new species Alloeogyna ampla sp. nov. and Alloeogyna poecila sp. nov. and a new combination is proposed for Alloeogyna brunnea comb. nov.. Also, Alitocoris maculosus Sailer recovered within the clade E in the Herrichella clade is here redescribed in the monotypic Sailerus gen. nov. resulting in the new combination Sailerus maculosus comb. nov..

A cladistic analysis of Schraderiellus Rider, 1998 is provided in this study. Were used 60 morphological characters for 34 taxa, including the two known species of Schraderiellus and five new species in the ingroup, two species of Discocephalini and 24 species of Ochlerini in the outgroup, and Euschistus hansi Grazia, 1987 as root. The analysis was made using TNT through heuristic searches under implied weighting of characters. The analysis indicates the monophyly of Schraderiellus with seven valid species. Schraderiellus is redescribed, and five new species are described: S. brevicolis sp. nv., S. falcatus sp. nv., S. luridomaculatus sp. nv., S. luteipedis sp. nv. and S. rufilineatus sp. nv., and a key for the species is presented.

Several nomenclatural problems were found while studying the types of Ochlerini in the Natural History Museum, London. These problems are addressed and corrected: Hemingius Distant, 1899 syn. nov. is removed from the synonymy with Moncus Stål, 1867, and considered a new junior synonym of Ochlerus Spinola, 1837; Ochlerus scaber Walker, 1867 is removed from the synonymy with Ochlerus obscurus Dallas, 1851, and it is proposed as a senior synonym of Ochlerus cotylophorus Breddin, 1910 syn. nov. Herrichella Distant, 1911 is a senior synonym of Alitocoris Sailer, 1950 syn. nov., with the resulting new combinations: Herrichella grandis (Garbelotto Campos, 2013) comb. nov., Herrichella lateralis (Garbelotto Campos, 2013) comb. nov., Herrichella ornata (Garbelotto Campos, 2013) comb. nov., and Herrichella schraderi (Sailer, 1950) comb. nov. A key for the species of Herrichella is also given. Eritrachys antennata (Distant, 1911) comb. nov. is a senior synonym of Eritrachys bituberculata Ruckes, 1959 syn. nov. Phereclus punctatus (Dallas, 1851) is transferred to the genus Lincus Stål, 1867 as Lincus punctatus (Dallas, 1851) comb. nov.

The tribe Ochlerini Rolston was proposed in 1981 to house 23 genera of Neotropical pentatomids, most of them containing few species and poorly represented in entomological collections. After a quarter century of accumulated taxonomic knowledge the tribe totals 36 genera and 133 species, but a number of taxa still require revision or remain undescribed. Here we describe and illustrate four new species from South America, Cromata flavida sp. nov., Lincus curvatus sp. nov., Ocellatocoris longirostris sp. nov., and Xynocoris ecuadorensis sp. nov. The specimens of L. curvatus and X. ecuadorensis were collected on oil palms (OxG hybrids, Elaeis oleifera x Elaeis guineensis) affected by the lethal wilt (marchitez sorpresiva) disease.

A cladistic analysis of the Herrichela clade (Ochlerini) was conducted to solve problems concerning the systematics of the genus Alitocoris Sailer; this recovered monophyletic groups which are considered to be new genera. Stapecolis gen. nov. is here proposed for two species (S. latus sp. nov. and S. bimaculatus sp. nov.) representing one of those monophyletic groups. The new genus is supported by ten synapomorphies, five of them pertaining to the morphology of the pygophore have not been found together in any other genera of Ochlerini. The female genitalia also has characteristics different from closely related genera.

Three new species of the Glyphepomis are described: Glyphepomis dubia Campos & Souza, sp. nov., Glyphepomis amazonica Gonçalves & Campos, sp. nov. and Glyphepomis magnocephala Bianchi & Campos, sp. nov. Comparative illustrations of external and internal genitalia, distribution map of the described species, additions to the genus description, and a key to the species are provided.

The Neotropical genus Braunus Distant is revised. Based on general morphology, Braunus is transferred to the Pentatominae and Lojus is proposed as a junior synonym of Braunus. The male and female genitalia of Braunus sciocorinus (Walker) are described for the first time. Three new species from the Peruvian and Bolivian Andes and from Colombia are described, Braunus machadoi Barão & Garbelotto sp. nov. (Holotype male deposited in AMNH: Peru, Cuzco, 01.XII.2011, C. Weirauch leg.), Braunus gibbus Garbelotto & Barão sp. nov. (Holotype female deposited in AMNH: Bolivia, Santa Cruz, Prov. Caballero, 15-21.X.2001, S. Spector & J. Ledezma leg.), and Braunus prionotus Barão & Garbelotto sp. nov. (Holotype female deposited in MNHN: Colombia, VII.1974, Steinheil leg.), respectively. Also, we describe the internal male and female genitalia of Braunus ocellatus (Thomas) comb. nov. A key to species and comments on subfamilial and tribal placements and on wing polymorphism are provided.

Recent examination of specimens from Ecuador revealed a series of males and females of an undescribed species clearly belonging to the Discocephalinae. The new species presents characteristics similar to genera of both Discocephalini and Ochlerini, preventing an undoubtful placement of the new species within any genus and tribe. We conducted a cladistic analysis to investigate the possible relationships of the new species within Discocephalinae. The new species was recovered as sister-group to the remaining Ochlerini, supporting the proposition of a new genus, so Candeocoris bistillatus Roell & Campos, gen. n. et sp. n. are described within Ochlerini. The new genus is recognized for its dark glossy aspect, tumid vertex of head, long and sinuous labrum, base of labium placed close to anterior limit of eyes, thick bristles on meso- and metatibiae, pygophore globose, and laterotergites 9 touching each other. The new species is recognized by a large yellow spot on each corium, yellow spots on each segment of the connexivum, bucculae with anterior tooth, laminar projections on superior layer of ventral rim of pygophore, vesica with a single median projection, and broad gonocoxites 8.

Xynocoris Garbelotto & Campos gen. nov. is proposed for a monophyletic group recovered in the previous cladistic analysis of the Herrichella clade. The genus is proposed based in two synapomorphies: the presence of long, projected, and acute anteocular processes, and apices of posterolateral angles of pygophore tumid. Nine new species are described (X. crinitus Garbelotto & Campos sp. nov., X. recavus Garbelotto & Campos sp. nov., X. tuberculatus Garbelotto & Campos sp. nov., X. insularis Garbelotto & Campos sp. nov., X. egeri Garbelotto & Campos sp. nov., X. calosus Garbelotto & Campos sp. nov., X. meridionalis Garbelotto & Campos sp. nov., X. lucidus Garbelotto & Campos sp. nov. and X. cupreus Garbelotto & Campos sp. nov.) and one new combination is proposed for Alitocoris parvus (Distant).

The chorionic structure of sixteen pentatomid species is described. Morphological patterns in different taxonomic levels are discussed. In addition, egg characters useful in cladistic analyses are listed, and some of those characters are tested for congruence with two cladistic analyses previously conducted within Pentatomidae. Descriptive studies were conducted with Banasa induta, Capivaccius bufo, Catulona pensa, Chinavia armigera, Chinavia aseada, Chinavia brasicola, Chinavia runaspis, Dichelops furcatus, Euschistus heros, Euschistus riograndensis, Euschistus paranticus, Mormidea cornicollis, Podisus distinctus, Podisus nigrispinus, Serdia apicicornis, and Thoreyella maracaja. The eggs were examined and photographed under light and scanning electron microscopy. Based on literature data, a list of 40 egg characters with potential phylogenetic importance has been compiled. Some of these characters were included in the cladistic analyses of the genus Nezara (six characters) and of the Chinavia obstinata group (five characters). Both analyses were performed in TNT with equal weighting of characters. The eggs of most of the Neotropical species studied were barrel-shaped, chorion translucent and spinose, with aero-micropylar processes that were short and clubbed. The patterns of egg morphology could be identified in Carpocorini, Procleticini, and in the genera Banasa, Chinavia, Euschistus, Mormidea, and Podisus. In the cladistic analyses, the inclusion of egg characters did not affect the topology of the trees shown in the original papers. For the analyses, the egg characters were somewhat informative. At present, a total of 286 Pentatomidae species have their egg stage described.

Based on the analyses of specimens collected at several areas in the Cerrado domain from Central Brazil and others housed in scientific collections and on specimens collected at the type-locality, herein we describe three new species belonging to the P. cristiceps group: Proceratophrys bagnoi sp. nov., from UHE Serra da Mesa power plant (13°49'47.5"S, 48°19'17"W; 570 m a.s.l.; WGS84 datum), Municipality of Minaçu, State of Goiás; Proceratophrys branti sp. nov., from Jalapão, Municipality of Mateiros (05 o 15'25"S, 48 o 12'00"W; 109 m a.s.l.; WGS84 datum), State of Tocantins; and Proceratophrys dibernardoi sp. nov., Municipality of Mineiros (17 o 33'52"S, 52 o 33'20"W; 803 m a.s.l.; WGS84 datum), State of Goiás. The diversity of Proceratophrys in Brazilian Cerrado is still underscored and several species will be described in the following years.