Scutigerella

Last updated

Scutigerella
Scutigerella 116012443.jpg
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Animalia
Phylum: Arthropoda
Subphylum: Myriapoda
Class: Symphyla
Family: Scutigerellidae
Genus: Scutigerella
Ryder, 1882
Type species
Scutigerella immaculata

Scutigerella is a genus of symphylans in the family Scutigerellidae. [1] [2] [3] This group includes at least 35 species and is the second-largest genus in this family. [1] [2] [4] This genus has a subcosmopolitan distribution. [4] [5] [6] This genus was first proposed in 1882 by the American zoologist John A. Ryder, who also designated S. immaculata as the type species. [7]

Contents

Description

Species in this genus vary in size and can range from 3.5 mm to 9 mm in length. [8] The head in this genus is shaped like a heart with two lobes on the posterior margin. [6] Spiracles open on the anterior surface of each side of the head. The antennae feature 20 to 50 segments and two kinds of setae, one thicker than the other. [5]

Adults in this genus feature 15 tergites and 12 pairs of legs. [5] The posterior margins of the tergites are notched. [4] The first tergite is reduced, whereas tergites 3, 6, 9, 12, and 14 are longer and have deeper notches on the posterior margin than the others. [5] Between the cerci, a deep U-shaped cavity lies beneath the posterior margin of the last tergite. [9] [4] The margins of the tergites feature many setae of various lengths. [5]

Each of the first pair of legs features four segments, whereas each of the other legs features five segments. A well developed stylus protrudes from the base of each leg from pair 3 through 12. The legs are densely covered with setae and feature intricate sculpture patterns on some segments. [5]

Distribution

Symphylans in this genus are found mainly in the northern temperate zones. [6] The distribution of this genus extends into the Palearctic, Nearctic, Neotropical, Afrotropical, and Indomalayan realms. This genus has also been introduced to the Australasian and Oceanian realms. [5]

Fossils

This genus is notable for including two described fossil species. Fossils of symphylans are rare and limited to specimens found in amber. [5] The first fossil symphylan to be described was Scutigerella dominicana , which was described in 1995 based on two juvenile specimens found in Dominican amber from 25 to 40 million years ago. [10] The first fossil symphylan to be described based on an adult specimen was Scutigerella baltica , which was described in 2004 based on a female specimen found in Baltic amber from 40 to 50 million years ago. [11]

Species

Scutigerella includes the following species: [1]

References

  1. 1 2 3 "ITIS - Report: Scutigerella". itis.gov. Retrieved 2025-06-29.
  2. 1 2 "Scutigerella Ryder, 1882 | COL". www.catalogueoflife.org. Retrieved 2025-06-27.
  3. ↑ "Scutigerella Ryder, 1882". www.gbif.org. Retrieved 2025-06-27.
  4. 1 2 3 4 Jin, Ya-Li; Godeiro, Nerivania Nunes; Bu, Yun (2023-05-04). "Description of the first species of Scutigerella (Symphyla, Scutigerellidae) from China, with mitogenomic and genetic divergence analysis". ZooKeys (1157): 145–161. Bibcode:2023ZooK.1157..145J. doi: 10.3897/zookeys.1157.99686 . ISSN   1313-2970. PMC   10193434 . PMID   37215163.
  5. 1 2 3 4 5 6 7 8 Szucsich, Nikola; Scheller, Ulf (2011). "Symphyla". In Minelli, Alessandro (ed.). The Myriapoda. Volume 1. Leiden: Brill. pp. 445–466. ISBN   978-90-04-18826-6. OCLC   812207443.
  6. 1 2 3 Moncada, Diego Alberto Salazar; Calle-Osorno, Jaime; Ruiz-Lopez, Freddy (2015-03-09). "Morphological and molecular study of Symphyla from Colombia". ZooKeys (484): 121–130. Bibcode:2015ZooK..484..121S. doi: 10.3897/zookeys.484.8363 . ISSN   1313-2970. PMC   4361788 . PMID   25829846.
  7. ↑ Ryder, J.A. (1882). "Genera of the Scolopendrellidae". Proceedings of the United States National Museum. 5: 234 – via Biodiversity Heritage Library.
  8. ↑ Michelbacher, A. E. (1942-09-01). "A Synopsis of the Genus Scutigerella (Symphyla: Scutigerellidae)" . Annals of the Entomological Society of America. 35 (3): 267–288. doi:10.1093/aesa/35.3.267. ISSN   0013-8746.
  9. ↑ Halliday, R.B. (2004). "Confirmation of the presence of Scutigerella immaculata (Newport) in Australia (Symphyla: Scutigerellidae)" . Australian Journal of Entomology. 43 (1): 43–45. doi:10.1111/j.1440-6055.2003.00375.x. ISSN   1440-6055.
  10. ↑ Poinar, G. O.; Edwards, C. A. (1995-04-01). "First description of a fossil symphylan,Scutigerella dominicana sp. n. (Scutigerellidae: Symphyla), in Dominican amber" . Experientia. 51 (4): 391–393. doi:10.1007/BF01928902. ISSN   0014-4754.
  11. ↑ Scheller, Ulf; Wunderlich, Jörg (2004). "Two fossil symphylan species, Scutigerella baltica n. sp. and Hanseniella baltica n. sp. (Tracheata, Scutigerellidae), in Baltic amber". Stuttgarter Beiträge zur Naturkunde, Serie B (Geologie und Palaeontologie). 351: 1–11 – via Biodiversity Heritage Library.

Creative Commons by small.svg  This article incorporates text by Sierwald, P.; Spelda, J. available under the CC BY 4.0 license.

This page is based on this Wikipedia article
Text is available under the CC BY-SA 4.0 license; additional terms may apply.
Images, videos and audio are available under their respective licenses.