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The tribe Meropachydini with descriptions of five new genera, synonymical notes, and a key to the genera (Heteroptera : Coreidae : Meropachydinae)
Abstract
Five new genera and six new species from Costa Rica, Brazil, Ecuador, Peru, and Bolivia are described in the tribe Meropachydini: Alcocerniella limonensis, Juaristiella pacificae, Larraldiella terminalis, Possaniella oblata, Soteloniella perparvula, and Soteloniella scutellata. Menardus Distant is proposed as a new junior synonym of Peranthus Stal, and Menardus notatus (Walker) is transferred to the genus Peranthus, resulting on the new combination Peranthus notatus (Walker). A key to the 11 known genera of Meropachydini is given.
... The subfamily include 26 genera divided into 3 tribes: Merocorini, Meropachyini, and Spathophorini, and its knowledge has been summarized recently by Brailovsky (1999), and Brailovsky & Barrera (1998, 2001. ...
... in the Southern Cone (adapted from Kormilev, 1954 andBrailovsky &Barrera, 2009) 1865 Merocoris bergi Mayr. Berg 1879, 281. ...
Meropachyinae Stål, restricted to the western hemisphere, is a relatively small group of Heteroptera, the subfamily include 3 tribes, the tribe Merocorini is represented by a single genus Merocoris Perty with 2 subgenera and 6 species, Subgenus Merocoris Perty with 3 South American species: M. (M.) bergi Mayr, M. (M.) elevatus (Spinola), and M. (M.) tristis Perty. The purposes of this contribution is to redescribe the species M. (M.) bergi, M. (M.) elevatus and M. (M.) tristis, give a key for the identification of species Merocoris in Argentina and including new contributions of geographical distribution are provided for Argentina (Neotropical region). The subfamily Meropachyinae Stål, restricted to the western hemisphere, is a relatively small group of Heteroptera characterized by having the distal end of hind tibiae ending beneath in a short projecting spine, the hind femur curved and usually strongly incrassate, and the hind coxae widely separated (Brailovsky & Barrera, 2009; Fernandez et al., 2015). The subfamily include 26 genera divided into 3 tribes: Merocorini, Meropachyini, and Spathophorini, and its knowledge has been summarized recently by Brailovsky (1999), and Brailovsky & Barrera (1998, 2001). The tribe Merocorini Stål 1870 is recognized by having the scutellum triangular, short, reaching onto the base of claval commissure, with the commissure visible for virtually full length, the apex of scutellum elevated as a small knob, and the abdominal spiracles circular, tiny, and positioned between the anterior and middle third of each sternite (Kormilev, 1954; Froeschner, 1981). The tribe is represented by a single genus Merocoris Perty with 2 subgenera and 6 species. The subgenus Merocoris (Perty, 1830) is characterized by having the antenniferous tubercles unarmed, the anterolateral borders of pronotum smooth or with single tubercle, and the scutellar disk conically raised. The subgenus includes 3 South American species: M. (M.) bergi Mayr, M. (M.) elevatus (Spinola), and M. (M.) tristis Perty (Kormilev, 1954; Packauskas, 2010; Pall & Coscarón, 2016; Coscarón In Press). The purposes of this contribution are to give redescriptions of the species M. (M.) bergi, M. (M.) elevatus and M. (M.) tristis, present a key for the
... Tribu Meropachyini Stål, 1868 hirilcus sp. #1 (Fig. 56) Brailovsky (1999) presenta una clave para los géneros de Meropachyinae que es completada y aumentada en el artículo de Brailovsky & Barrera (2001). Aparentemente el carácter utilizado en el primer paso de ambas claves (presencia o no de proyecciones triangulares posteriores en el pronoto) es poco consistente, tal así que en los tipos de Hirilcus crassipes (fotografías en CoreoideaSF Team, 2016) no se observan dichas proyecciones. ...
... Aparentemente el carácter utilizado en el primer paso de ambas claves (presencia o no de proyecciones triangulares posteriores en el pronoto) es poco consistente, tal así que en los tipos de Hirilcus crassipes (fotografías en CoreoideaSF Team, 2016) no se observan dichas proyecciones. Obviando este paso, el único ejemplar tratado aquí correspondería al género Hirilcus, sobre todo a juzgar por la estructura meso y metasternal (comparable con la figura 6 en Brailovsky, 1999). ...
A commented list including full specimen data and representative photographs, of the 57 species and morphospecies of true bugs of the family Coreidae (Insecta: Hemiptera: Heteroptera) housed in the Museo Nacional de Historia Natural del Paraguay collection is provided.The list is followed by a brief discussion and a map about the collection localities. Twelve species are recorded for the first time from Paraguay.
... En los últimos años la subfamilia Meropachyinae ha sido estudiada por diversos autores que han contribuido al conocimiento taxonómico de la misma, describiendo nuevos géneros y especies ( Stål 1867, Kormilev 1954, Brailovsky y Barrera 2001, Brailovsky 1998,1999y 2000, Brailovsky y Luna, 2000. ...
... Para la identificación, descripción y redescripción de los organismos se utilizaron artículos científicos y claves que fueron elaboradas por Kormilev (1954), Brailovsky (1998Brailovsky ( , 1999Brailovsky ( y 2000 y Brailovsky y Barrera (1998Barrera ( , 2001. ...
Los estudios de la Subfamilia Meropachyinae (Stål, 1867), (Hemiptera:
Heteroptera: Coreidae) para México son escasos; en esta investigación se rescata la
información de autores como Kormilev y Stål, los cuales redescribieron las tres tribus
conocidas, Merocorini (Stål, 1870), Meropachyini (Stål, 1867) y Spathophorini (Kormilev
1854), así como tres géneros: Flavius (Stål, 1862), Lycambes (Stål, 1862) y Merocoris
(Perty), y dos géneros más fueron descritos recientemente: Romoniella (Brailovsky y
Barrera, 2001) y Salamancaniella (Brailovsky y Luna, 2000). En este trabajo se
redescriben los caracteres distintivos en cabeza, pronoto, escutelo, tórax, patas y
abdomen, se elaboran las claves respectivas, e ilustraciones y se agregan nuevos
registros con los cuales se amplía la distribución de cada género para México.
... This strongly built spermatheca belongs to the subtype B of type III. A spermatheca exhibiting a stout general appearance was illustrated in eight other genera of the tribe Meropachyini: Alcocerniella Brailovsky 1999, Brailovsky & Luna 2000, Brailovsky & Barrera 2001. All these spermathecae most likely belong to the coreine subtype B. ...
... This strongly built spermatheca belongs to the subtype B of type III. A spermatheca exhibiting a stout general appearance was illustrated in eight other genera of the tribe Meropachyini: Alcocerniella Brailovsky 1999, Brailovsky & Luna 2000, Brailovsky & Barrera 2001. All these spermathecae most likely belong to the coreine subtype B. ...
The morphology of the spermatheca is described in 109 species of 86 genera representing all four currently recognised subfamilies of Coreidae, covering the undivided Hydarinae, both tribes of Pseudophloeinae, all three tribes of Meropachyinae and 27 of the 32 tribes of Coreinae. Three types of spermatheca are recognised. Type I is bipartite, consisting only of a simple tube differentiated into distal seminal receptacle and proximal spermathecal duct and lacks the intermediate part present in most Pentatomomorpha, in which it serves as muscular pump. Type II is also bipartite but more elaborate in form with the receptacle generally distinctly wider than the duct. Type III is tripartite, with receptacle, duct and an often complex intermediate part. Four subtypes are recognised within type III. Type I is found only in Hydarinae and type II only in Pseudophloeinae. Type III is found in both Coreinae and Meropachyinae. Subtype IIIA (“Coreus-group”) unites many tribes from the Eastern Hemisphere and only one (Spartocerini) from the Western Hemisphere. Subtypes IIIB (“Nematopus-group”) and IIID (“Anisoscelis-group”) are confined to taxa from the Western Hemisphere and subtype IIIC (“Chariesterus-group”) is found in tribes from both hemispheres. The polarity of several characters of the intermediate part and some of the spermathecal duct is evaluated, suggesting autapomorphies or apomorphies potentially relevant to the classification of Coreidae at the sufamilial and tribal levels. Characters of the intermediate part strongly indicate that the separation of Meropachyinae and Coreinae as currently constituted cannot be substantiated. The tribes Anisoscelini, Colpurini, Daladerini and Hyselonotini are heterogeneous, each exhibiting two subtypes of spermatheca, and probably polyphyletic. Two tribes, Cloresmini and Colpurini, requiring further investigation remain unplaced. This study demonstrates the great importance of characters of the spermatheca, in particular its intermediate part, for research into the phylogeny and taxonomy of Pentatomomorpha.
... The subfamily include 26 genera divided into 3 tribes: Merocorini (1), Meropachyini (16), and Spathophorini (9), and the knowledge of them has been summarized recently by Brailovsky (1999), and Brailovsky & Barrera (1998, 2001. ...
A new species of the genus Merocoris subgenus Merocoris belonging to the coreid monobasic tribe Merocorini is described from Brazil under the name M . (M .) tumulus. Keys to the known subgenera and species of Merocorini are provided, along with dorsal view illustration of adult and drawings of parameres. R ESUMEN Una nueva especie de coreido del género Merocoris subgénero Merocoris perteneciente a la tribu monobásica Merocorini se describe del Brasil con el nombre de M . (M .) tumulus . Se in-cluye una clave para separar los subgéneros y especies conocidas de Merocorini, así como una ilustración en vista dorsal del adulto y dibujos de los parámeros. Translation provided by the authors. The subfamily Meropachyinae Stål, restricted to the western hemisphere, is a relatively small group of Heteroptera characterized by having the distal end of hind tibiae ending beneath in a short projecting spine, the hind femur curved and usu-ally strongly incrassate, and the hind coxae widely separated. The subfamily include 26 genera divided into 3 tribes: Merocorini (1), Meropachyini (16), and Spathophorini (9), and the knowledge of them has been summarized recently by Brailovsky (1999), and Brailovsky & Barrera (1998, 2001). The tribe Merocorini Stål 1870 is recognized by having the scutellum triangular, short, reaching onto base of claval commissure, with the commis-sure visible for virtually full length, the apex of scutellum elevated as a small knob, and the ab-dominal spiracles circular, tiny, and positioned be-tween the anterior and middle third of each ster-nite (Kormilev 1954; Froeschner 1981). The tribe is represented by a single genus Merocoris Perty with 2 subgenera and 6 species. The subgenus Merocoris (Perty 1830) is charac-terized by having the antenniferous tubercles un-armed, the anterolateral borders of pronotum smooth or with single tubercle, and the scutellar disk conically raised. The subgenus includes 3 South American species: M. (M .) bergi Mayr, 1879 (in Berg 1879), M . (M .) elevatus (Spinola 1837), and M . (M .) tristis Perty 1830. The subgenus Corynocoris Mayr, 1866, has the antenniferous tubercles externally armed with a stout spine, the anterolateral borders of pronotum with 2 or more tubercles, and the scutellar disk almost flat. This subgenus includes 3 species distributed in North and Central America and the Greater Antilles: M . (C .) curtatus McAtee 1919, M . (C .) distinctus Dal-las 1852, and M . (C .) typhaeus (Fabricius 1798). In the present contribution 1 new species from Brazil, belonging to the subgenus Merocoris is de-scribed, and a revised key to the known subgen-era and species assigned to the monobasic tribe Merocorini is included. All measurements are given in millimeters. Repositories for specimens and abbreviations given in the text are as follows: The American Mu-seum of Natural History, New York, USA (AMNH), The Natural History Museum, London (BMNH), University of Missouri, Columbia, Mis-souri, USA (UMRM), and Colección Entomológica del Instituto de Biología, Universidad Nacional Autónoma de México, D. F. (UNAM).
... The subfamily include 26 genera divided into 3 tribes: Merocorini (1), Meropachyini (16), and Spathophorini (9), and the knowledge of them has been summarized recently by Brailovsky (1999), and Brailovsky & Barrera (1998, 2001. ...
A new species of the genus Merocoris subgenus Merocoris belonging to the coreid monobasic tribe Merocorini is described from Brazil under the name M. (M.) tumulus. Keys to the known subgenera and species of Merocorini are provided, along with dorsal view illustration of adult and drawings of parameres.Una nueva especie de coreido del género Merocoris subgénero Merocoris perteneciente a la tribu monobásica Merocorini se describe del Brasil con el nombre de M. (M.) tumulus. Se incluye una clave para separar los subgéneros y especies conocidas de Merocorini, así como una ilustración en vista dorsal del adulto y dibujos de los parámeros.Translation provided by the authors.
Pyrrhocoroidea represents an important group of true bugs (Insecta: Hemiptera: Heteroptera) which includes fire bugs, cotton stainers and other taxa widely used in experimental studies or known as pests. However, the morphology and phylogeny of Pyrrhocoroidea have been only poorly studied so far. Here, structures of the external scent efferent system of the metathoracic scent glands are examined in 64 out of 71 currently valid genera of Pyrrhocoroidea and scanning electron micrographs are provided for most taxa. Several characters are revealed which define each of the three higher taxa within Pyrrhocoroidea: Larginae (small auriculate peritreme lacking manubrium and median furrow; metathoracic spiracle never surrounded by evaporatorium), Physopeltinae (large, widely open ostiole; large peritremal disc with manubrium [new term], lacking median furrow; mace-like mycoid filter processes of equal shape and size on both anterior and posterior margins of metathoracic spiracle), and Pyrrhocoridae (elongate auriculate peritreme with deep median furrow). Within Pyrrhocoridae, three main types (A, B and C) of the external scent efferent system are distinguished, differring in the amount of reductions. The findings are interpreted in the context of phylogenetic hypotheses available for Pyrrhocoroidea and their close relatives, Coreoidea and Lygaeoidea. An updated identification key to the families and subfamilies of Pyrrhocoroidea applicable for both sexes is provided.
Se proporciona información sobre los ejemplares tipo de Hemiptera, depositados en la
colección entomológica del Museo Nacional de Costa Rica, donde se listan 92 holotipos, 19 alotipos y 1894 paratipos pertenecientes a 13 familias.
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 also implied weighting (IW) based on 56 terminals (23 belonging to the ingroup) and 115 morphological characters, including male and female genitalia. Spar-tocerini was polyphyletic both under EW and IW because Molchina was nested in Mictini. We remove Molchina from Spartocerini and consider the genus as incertae sedis. Spartocera, Eubule, and Sephina were not recovered as monophyletic. Sephina pubera (Erichson) is considered as incertae sedis within Spartocer-ini, Eubule ampliata (Valdés) is transferred to Spartocera as a new combination, and Mamurius is included in Anisoscelini.
The family Coreidae is distributed worldwide, but these phytophagous bugs are most abundant in the tropics and subtropics. In the Neotropical region, all of the subfamilies and 16 tribes are represented. In tropical ecosystems, these bugs feed on herbs and shrubs in open areas of forests as well as at the forest edge. Some species are spectacularly colored, and unusual expansions of antennae, humeral angles, femora, or tibiae occur in many groups. Some of them move lazily even when disturbed and hardly fly to escape; others are extremely nimble, fast flying away when disturbed. They are frequently encountered in crops, representing important pests in several commodities. No one common name is universally accepted for the family, and none of the frequently used names (e.g., squash bug, leatherbug, leaf-footed bug, Randwanzen) are collectively appropriate for all members of the family. © Springer Science+Business Media Dordrecht 2015. All rights reserved.
Four new genera and three new species from Mexico, Belize, San Salvador, Honduras, Costa Rica, Brazil, Peru and Bolivia are described, illustrated and included in the tribe Meropachyini (Coreidae). Flavius tristriatus Kormilev is transferred to the new genus Badilloniella. A key to the 16 known genera of Meropachyini is given. /// Cuatro nuevos géneros y tres nuevas especies provenientes de México, Belize, San Salvador, Honduras, Costa Rica, Brasil, Peru y Bolivia son descritos, ilustrados, he incluidos en la tribu Meropachyini (Coreidae). Flavius tristriatus Kormilev es transferido a un nuevo género, Badilloniella, con la combinación Badilloniella tristriatus (Kormilev). Se incluye una clave para separar los 16 géneros conocidos de la tribu Meropachyini.
The new genera and species Meropalionellus solacium, n. gen., n. sp., from Bolivia and Zettelniella indelebilis, n. gen., n. sp., from Bolivia, Ecuador, and Peru are described, illustrated, and included in the tribe Meropachyini (Coreidae).
A key for identification of 28 Pentatomomorpha in Neotropical distribution families is presented. Figures in dorsal view of some specimens for each family and the different features mentioned are shown. A synopsis of the main references for identification at the genus level in the Neotropic is presented.
