Project

Teratology

Goal: To describe in a comprehensive way teratological cases among a series of animal taxa

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Project log

Eduardo I. Faúndez
added a research item
The first teratological case for the millipede P. pachyskeles is described from Chile. This also becomes the first teratology known for a Chilean diplopod. Additionally, new records for the species in Los Ríos and Biobío region are given; filling its distributional gap in Southern Chile.
Eduardo I. Faúndez
added a research item
A teratological case in a specimen of Glaphyrolytta viridipennis (Coleoptera: Meloidae) from Argentina is described. The case belongs to a multiple homodynamic eschistomelie in the right protarsus of the specimen. The possible causes of this malformation are discussed.
Eduardo I. Faúndez
added a research item
Se describe el primer caso teratológico en la tijereta Esphalmenus silvestrii (Borelli, 1902), correspondiente a una oligomeria y atrofia unilateral con anartrogénesis en la pata mesotorácica derecha, en un ejemplar adulto proveniente de Isla Magdalena, Región de Magallanes, Chile. El caso teratológico es discutido e ilustrado. Adicionalmente, este es el primer registro de E. silvestrii en la Isla Magdalena. Palabras clave: Estrecho de Magallanes, Patagonia, teratosis, tijereta. Abstract. First teratological case in the earwig Esphalmenus silvestrii (Borelli, 1902) is reported. The case belongs to an atrophy and oligomery unilateral with anarthrogenesis in the mesothoracic right leg. The case is discussed and illustrated. Additionally, this is the first record of E. silvestrii in Magdalena Island, Magellanes Region, Chile.
Eduardo I. Faúndez
added a research item
Sobre teratología, su estudio y diferencias con otras áreas
Alfredo Lüer
added a research item
Se describen y comentan 15 casos teratológicos en Cleridae (Coleoptera: Cleroidea) de Chile, que incluyen una asimetría cromática elitral, una distrofia ocular, una invaginación abdominal, tres distrofias apendiculares (dos en patas y una del palpo labial y maxilar), tres sinfisocerias y seis malformaciones elitrales (una plicatura, dos recogimientos y tres trematoelitrías). Estos casos se convierten en las primeras teratosis descritas en cléridos chilenos.
Eduardo I. Faúndez
added a research item
Se describe un caso teratológico en un ejemplar de Piezodorus guildinii (Westwood, 1837) de la región Piura, Perú, el cual pertenece al grupo de las ectromelias, que corresponde a una oligomeria antenal izquierda simple. Se comenta y discute la posible causa de esta teratosis.
Eduardo I. Faúndez
added a research item
Resumen.-Se entregan nuevos registros del Asopino Alcaeorrhynchus grandis (Dallas) en Paraguay, en los departamentos de Canindeyú, San Pedro, Cordillera y Alto Paraná. Adicionalmente se describe un caso teratológico correspondiente a una oligomeria tarsal simple. Palabras clave: Asopinae, faunística, teratología, Paraguay. Abstract.-New records of the predator stink bug Alcaeorrhynchus grandis (Dallas) from the Paraguayan departments of Canindeyú, San Pedro, Cordillera and Alto Paraná are given. In addition, a teratological case involving a simple tarsal oligomery is described.
Eduardo I. Faúndez
added a research item
Resumen. Se describen cuatro casos teratológicos correspondientes a atrofias y oligomerias antenales en heterópteros peruanos: atrofia en antena izquierda de Piezogaster obscuratus (Montandon, 1899) (Coreidae) y Oncopeltus (Erythrischius) zonatus (Erichson, 1848) (Lygaeidae), atrofia en antena derecha con anartrogénesis de Oncopeltus (Erythrischius) cingulifer Stal, 1874 (Lygaeidae) y oligomeria simple en antena izquierda de Anasa guayaquila Brailovsky, 1985 (Coreidae). Estas teratosis representan los primeros casos reportados para hemípteros peruanos. Se comentan y discuten las posibles causas de estas teratosis. Abstract. Four teratological cases of atrophies and oligomeries on Peruvian heteropterans are described: atrophy in the left antennae of Piezogaster obscuratus (Montandon, 1899) (Coreidae) and Oncopeltus (Erythrischius) zonatus (Erichson, 1848) (Lygaeidae), atrophy in the right antennae with anarthrogenesis of Oncopeltus (Erythrischius) cingulifer Stal, 1874 (Lygaeidae) and simple oligomery in the left antennae of Anasa guayaquila Brailovsky, 1985 (Coreidae). These teratoses represent the first cases on Peruvian hemipterans. The possible causes of these cases are commented and discussed.
Eduardo I. Faúndez
added a research item
A case of wing asymmetry based on the atrophy of right tegmen and hindwing is described for Chigallia simplex. This case is the first teratosis known for a Chilean cicadellid and one of the few cases described for Auchenorrhyncha.
Eduardo I. Faúndez
added a research item
Leptoglossus concaviusculus Berg, 1892 is a leaf-footed bug distributed in Argentina, Brazil, Paraguay, and Uruguay. In this contribution, two teratological cases in L. concaviusculus are described. The first one is a simple oligomery in a male specimen, and the second belongs to a case of atrophy on a female specimen. Possible causes of the teratosis are discussed. It is also provided the first record of parasitism by Tachinidae (Diptera) on this species.
Eduardo I. Faúndez
added a research item
A teratological case in a specimen of Oncopeltus (Erythrischius) unifasciatellus Slater, 1964 is described. The teratosis belongs to an oligomery in the right tarsus. The structure has an only and obsolete segment, apparently as a result of regeneration. Together with the teratological case, the first records of this species from Salta Province in Argentina are provided.
Eduardo I. Faúndez
added a research item
Two teratological cases are described in the pentatomid Hillieria acuminata Distant, 1910, from Southern Australia. The two cases belong cephalic atrophy. Both cases are illustrated and discussed.
Eduardo I. Faúndez
added a research item
teratological case of unilateral abdominal atrophy is described on a third instar nymph of Loxa deducta Walker. A second case of binary unilateral schistomely in an adult is also described. The specimen comes from provinces of Buenos Aires and Entre Ríos, Argentina. The cases are the first teratosis known for Loxa deducta. Illustrations are provided and possible causes of the teratosis are discussed.
Alfredo Lüer
added 2 research items
Resumen: Se describen cinco casos teratológicos en dos especies del género Byrrhodes (Coleoptera: Ptinidae) procedentes de Chile, correspondientes a malformaciones en los élitros: dos cistelitrías unilaterales y una trematolitría unilateral en Byrrhodes bimaculatus (Philippi & Philippi, 1864), y dos hemibraqueilitrías en Byrrhodes nigricolor (Pic, 1912), una combinada con asimetría cromática y otra con una cistelitría.
Eduardo I. Faúndez
added a research item
A teratological case is described in one specimen of Oenopiella punctaria (Stål, 1859) from Aisén Region, Chile. Malformations belongs to the group of the hemiteries (a pronotal dysplasia), and ectromelies (a right antennal atrophy). Possible causes of the teratological case are discussed. Resumen Se describe un caso teratológico en un ejemplar de Oenopiella punctaria (Stål, 1859) de la Región de Aisén, Chile. Las malformaciones corresponden al grupo de las hemiterias (una displasia pronotal) y ectromelias (una atrofia antenal derecha). Se discuten las posibles causas de la teratosis.
Eduardo I. Faúndez
added a project goal
To describe in a comprehensive way teratological cases among a series of animal taxa
 
Eduardo I. Faúndez
added a research item
Eduardo I. Faúndez
added a research item
Resumen Se describen tres casos teratológicos en ejemplares de Lygaeidae de Chile. El primer caso corresponde a una hemiteria pronotal en Syzygitis poecilus (Spinola, 1852); el segundo caso corresponde a una oligomeria simple en la antena derecha de un ejemplar de S. poecilus; finalmente el tercer caso corresponde a una atrofia con anartrogénesis en Lygaeus alboornatus Blanchard, 1852. Se comentan y discuten las posibles causas de estas malformaciones. Abstract Three teratological cases are described for species in the family Lygaeidae from Chile. The first case belongs to a pronotal hemitery in Syzygitis poecilus (Spinola, 1852). The second case belongs to a simple oligomery in the right antenna of a S. poecilus specimen. The third case belongs to an antennal atrophy with anarthrogenesis in Lygaeus alboornatus Blanchard, 1852. The possible causes of these teratosis are commented and discussed.