Dicranocentrus Schott 1893
Creators
- 1. Laboratory of Collembola, Department of Botany and Zoology, Biosciences Center, Federal University of Rio Grande do Norte (UFRN), Highway BR- 101, Lagoa Nova, Campus Universitario, 59072 - 970, Natal, RN, Brazil.
- 2. Environmental Management, School of Life and Health Sciences, Federation University, Ballarat, Vic. 3353, Australia. & School of Biology, Australian National University, GPO Box, ACT 0200, Australia.
- 3. University of Navarra, Faculty of Sciences, Institute for the Biodiversity and Enviroment (BIOMA) and Department of Environmental Biology, University Campus, 31080, Pamplona, Spain.
- 4. University of Navarra, Faculty of Sciences, Institute for the Biodiversity and Enviroment (BIOMA) and Department of Environmental Biology, University Campus, 31080, Pamplona, Spain. & rjordana @ unav. es; https: // orcid. org / 0000 - 0001 - 9088 - 787 X
- 5. Laboratory of Collembola, Department of Botany and Zoology, Biosciences Center, Federal University of Rio Grande do Norte (UFRN), Highway BR- 101, Lagoa Nova, Campus Universitario, 59072 - 970, Natal, RN, Brazil. & paollasouzac @ gmail. com; https: // orcid. org / 0000 - 0003 - 0612 - 8438
Description
Genus Dicranocentrus Schött, 1893
Diagnosis. Specimens usually pigmented, colour patterns variable, eyepatches black. Apically rounded or truncate scales present, as in other Heteromurini. Antennae usually six-segmented with Ant. I and II basally subdivided, proximal subarticles smaller than the distal ones, Ant. III usually longer than Ant. IV, rarely subequal or shorter; apical bulb of Ant. IV absent; Ant. III–IV annulated, devoid of scales. Postantennal organ absent. Eyes 8+8. Prelabral chaetae smooth and not bifurcate. Labial chaetae e smooth; post-labial quadrangle (anterior chaetae surrounding the cephalic groove) chaetae smooth or rough, never ciliate. Th. II not projected over head, Abd. I with mac, Abd. V with four or seven sens (atypical). Unguis (claw) with a single outer tooth. Dental base with or without macrochaetae, if present, erect and blunt or plumose (not sinuous). Dental spines simple, if present. Mucronal spine generally present (adapted from Mari-Mutt 1979; Mari-Mutt & Bhattacharjee 1980; Bellini et al. 2020, 2021).
Remarks. The updated diagnosis mostly agrees with Bellini et al. (2020), but it was modified to exclude Falcomurus litoreus (Mari-Mutt, 1985) and F. halophilus (Mari-Mutt, 1985), previously assigned as Dicranocentrus species (Bellini et al. 2021). Also, as noted by Mari-Mutt (1979) and Mari-Mutt & Bhattacharjee (1980), Dicranocentrus taxa can have the Ant. I and/or II undivided. While this may be the result of regenerating antennae (Mari-Mutt 1979), at least in D. pilosus Mari-Mutt & Bhattacharjee (1980) the subdivision of the Ant. II was apparently lost. The same occurs with the mucronal spine, which is universally seen in Dicranocentrus species but is missing in some specimens of D. indicus Bonet, 1930 sensu Yosii (1966).
Notes
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Linked records
Additional details
Identifiers
Biodiversity
- Scientific name authorship
- Schott
- Kingdom
- Animalia
- Phylum
- Arthropoda
- Order
- Entomobryomorpha
- Family
- Orchesellidae
- Genus
- Dicranocentrus
- Taxon rank
- genus
- Taxonomic concept label
- Dicranocentrus Schott, 1893 sec. Bellini, Greenslade, Baquero, Jordana & Souza, 2022
References
- Schott, H. (1893) Beitrage zur kenntnis der insektenfauna von Kamerun. Bihang till Kong. Svenska Vetenskaps-Akademiens Handlingar, 19, 5 - 28.
- Mari-Mutt, J. A. (1979) A revision of the genus Dicranocentrus Schott (Insecta: Collembola: Entomobryidae). Agricultural Experiment Station Bulletin, 259, 1 - 79.
- Mari-Mutt, J. A. & Bhattacharjee, R. K. (1980) Four new species of Dicranocentrus from northeast India and Nepal (Collembola: Entomobryidae: Orchesellinae). Pacific Insects, 22 (1 - 2), 162 - 170.
- Bellini, B. C., Cipola, N. G. & Siqueira, O. J. R. (2020) A Survey of the Brazilian Dicranocentrus Schott (Collembola, Orchesellidae, Heteromurini) with the Description of a New Species and Notes on the Genus. Insects, 11 (709), 1 - 27. https: // doi. org / 10.3390 / insects 11100709
- Bellini, B. C., Souza, P. G. C. & Greenslade, P. (2021) The Puzzling Falcomurus Mandal (Collembola, Orchesellidae, Heteromurinae): A Review. Insects, 12 (650), 1 - 31. https: // doi. org / 10.3390 / insects 12070650
- Bonet, F. (1930) Sur quelques collemboles de l'Inde. Revista Espanola de Entomologia, 6 (3), 249 - 273.
- Yosii, R. (1966) On some Collembola of Afghanistan, India and Ceylon, collected by the Kuphe-Expedition, 1960. Results of the Kyoto University Scientific Expedition to the Karakoram and Hindukush, 1955, 8, 333 - 405.