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Taxonomy of the Proisotoma complex. VI. Rediscovery of the genus Bagnallella Salmon, 1951 and epitoky in Bagnallella davidi (Barra, 2001), comb. nov. from South Africa
- Source :
- ZooKeys 1072: 167-186, ZooKeys, Zookeys, Zookeys, Pensoft, 2021, 1072, pp.185-204. ⟨10.3897/zookeys.1072.71307⟩, ZooKeys, Vol 1072, Iss, Pp 185-204 (2021)
- Publication Year :
- 2021
- Publisher :
- Pensoft Publishers, 2021.
-
Abstract
- The genus Bagnallella Salmon is restored and given a diagnosis. It takes an intermediate position between Proisotoma Börner and Cryptopygus Willem complexes and is characterized by the separation of the two last abdominal segments (like in Proisotoma) and 3 and 5 s-chaetae on the fourth and fifth abdominal segments (like in Cryptopygus and its allies). A list of and key to species belonging to Bagnallella is given. Bagnallella bisetacomb. nov., B. dubiacomb. nov., B. sedecimoculatacomb. nov., and B. tenellacomb. nov. are commented and redescribed. Morphology of Bagnallella davidi (Barra), comb. nov. is described from the specimens from South Africa. So far B. davidi appears to be a complex of forms differing in size of the furca and macrochaetae. Two types of strongly modified males were found and described. Antennae, ventral side of abdomen, posterior edge of abdominal tergites, and mandibles are affected with epitoky. The nature of the discovered strong polymorphism is unclear.
- Subjects :
- 0106 biological sciences
Epitoky
Lesotho and Swaziland
Arthropoda
010607 zoology
Zoology
010603 evolutionary biology
01 natural sciences
polymorphism
Isotomoidea
South Africa
Genus
Animalia
Entomobryomorpha
Parisotoma
Ecology, Evolution, Behavior and Systematics
Taxonomy
Isotominae
Proisotoma
Cenozoic
[SDV.BA]Life Sciences [q-bio]/Animal biology
Biota
Isotomidae
Geography
QL1-991
Collembola
supermale
Proisotominae
Animal Science and Zoology
Taxonomy (biology)
Research Article
Subjects
Details
- Language :
- English
- ISSN :
- 13132970 and 13132989
- Database :
- OpenAIRE
- Journal :
- ZooKeys
- Accession number :
- edsair.doi.dedup.....418789048b4efe06563d2e9a3b6d1990