New teratological cases in Platygastridae and Pteromalidae (Hymenoptera)

Popovici, Ovidiu Alin; Mitroiu, Mircea Dan; Notton, David G.

doi:10.3906/zoo-1312-30

Cited by 11 publications

(5 citation statements)

References 7 publications

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“…It is well-documented that malformations and aberrations in Hymenoptera have led to the description of new genera and species, subsequently resulting in their synonymization (De Beaumont 1959;De Rond 1994;Popovici et al 2014). This phenomenon extends beyond metasomal aberrations, encompassing abnormal antennae, wing venation, and aberrant mesosomal parts, which have caused misidentifications and proven to be sources of taxonomic challenges (Bouček & Graham 1978;Masner & Huggert 1989).…”

Section: Discussionmentioning

confidence: 99%

New teratological cases in cuckoo wasps, with synonymization of Oligogaster Soliman & Kimsey (Hymenoptera, Chrysididae)

ROSA

2024

Zootaxa

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Aberrations involving the metasoma in Hymenoptera are well-documented, with one notable teratological case being the fusion of metasomal terga, named symphysomery. This aberration, characterized by the fusion of the second and third terga, has been observed in various species groups of Hedychridium, spanning from Southern Africa to Central Asia. Similar aberrations were noted in Prochridium Linsenmaier from Mongolia and Anachrysis Krombein from Southern Africa. The monotypic genus Oligogaster Soliman & Kimsey is distinguished by two visible metasomal terga. However, the sole specimen of Oligogaster kimseyae Soliman, the type species of the genus, is here considered an aberrant specimen affected by symphysomery, exhibiting the fusion of the second and third metasomal terga. Consequently, Oligogaster Soliman & Kimsey is here synonymized with Hedychridium Abeille de Perrin.

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Section: Discussionmentioning

confidence: 99%

New teratological cases in cuckoo wasps, with synonymization of Oligogaster Soliman & Kimsey (Hymenoptera, Chrysididae)

ROSA

2024

Zootaxa

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“…Helicomery was first observed in polychaete and cltellate annelids (Cori, 1892; Morgan, 1892, 1895; Buchanan, 1893; Storch, 1913; Sayles, 1936; Figure 1). In addition, it has been found in all major groups of arthropods: chelicerates (Ćurčić et al, 1983; Juberthie, 1968; Mattoni, 2005; Pedder, 1965), myriapods (Balazuc & Schubart, 1962; Brölemann, 1894, 1904; Demange, 1972; Demange & Pereira, 1980; Leśniewska et al, 2009; Minelli & Pasqual, 1986; Simaiakis et al, 2007), insects (Morgan, 1895; Cappe de Baillon, 1927; Cockayne, 1929, 1934; Balazuc, 1948, 1958; Ramsay, 1959; Benton & Jennings,1975; Hesse‐Honegger, 1998; Chesebro, 2012; Ornosa et al, 2001; Pix, 2014; Popovici et al, 2014), and crustaceans (Keilbach, 1958; Linder, 1947, 1952; Longhurst, 1958; Morgan, 1895; Šaganović et al, 2019; Scholtz, 2020b) including pentastomids (Spencer, 1892, Heymons, 1931; Figures 2 and 3). There are even fossil examples of spiral segments as exemplified by Cambrian and Ordovician trilobites (Owen, 1985; Rudkin, 1985; Figures 2 and 3).…”

Section: Annelid and Arthropod Segmentsmentioning

confidence: 99%

Screwed up: Spirality of segments and other iterated structures suggest an underlying principle of seriality in bilaterians

Scholtz

2021

Journal of Morphology

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This review deals with helicomery, that is, the specific malformation of a spiral arrangement of segments and other serial structures. Helicomery was first described in annelid and arthropod body segments. However, corresponding patterns occur in arthropod appendages and other bilaterians with serially arranged body parts, such as tapeworms, nematodes, vertebrates, and probably chitons. The specifics of the spirals such as length, orientation, and handedness are described. Most spirals are dorsal and comprise only a few loops. Helicomery is formed by a shift of cells during development or in adults caused by changes in cell adhesion or mechanical impacts such as lesions. A model for the formation of helicomery is proposed, which is based on medieval church labyrinths. These complex spiral structures are derived from concentric lines by the shift of relatively few tiles. This principle of “small causes, great effect” also applies to “spiral segments,” because helicomery dissolves segmental patterns and questions the concept of segments as distinct structures. The widespread occurrence of helicomery in nonhomologous serial structures might indirectly indicate an underlying principle of seriality among Bilateria.

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“…evansi es baja, su reporte es pertinente, pues el conocimiento de su presencia en poblaciones naturales puede evitar dificultades y eventuales confusiones en el proceso de la identificación taxonómica de algunos especímenes (10,19), además de contribuir a reducir el riesgo de aparición de nuevas sinonimias (9), ya que en otros grupos de insectos se ha demostrado que las anomalías pueden ser fuente de errores taxonómicos (20).…”

Section: A C B Dunclassified

Anomalías morfológicas en los dientes del cibario de Lutzomyia evansi (Diptera: Psychodidae), en el estado Trujillo, Venezuela

et al. 2015

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New teratological cases in Platygastridae and Pteromalidae (Hymenoptera)

Cited by 11 publications

References 7 publications

New teratological cases in cuckoo wasps, with synonymization of Oligogaster Soliman & Kimsey (Hymenoptera, Chrysididae)

New teratological cases in cuckoo wasps, with synonymization of Oligogaster Soliman & Kimsey (Hymenoptera, Chrysididae)

Screwed up: Spirality of segments and other iterated structures suggest an underlying principle of seriality in bilaterians

Anomalías morfológicas en los dientes del cibario de Lutzomyia evansi (Diptera: Psychodidae), en el estado Trujillo, Venezuela

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