A new Scorpio (Scorpiones, Scorpionidae) species from Northern Iraq

Keywords: Mesopotamia, endemic, fauna, description, taxonomy

Abstract

Scorpio assyriacus sp. n., from northern Iraq is described illustrated and compared with all known species of the genus Scorpio Linnaeus, 1758, occurring in Turkey, the Middle East, and Iran. Aspects of the ecology and distribution of the new species are discussed and compared with those of other closely related Scorpio species from nearby localities in Turkey. The new species can be distinguished by its reduced number of pectinal teeth, the cardial-triangular configuration of the genital operculum (which is not posteriorly elongated in females), a more hirsute body, globular vesicle, flattened and discrete granules on the external surface of the chela manus, and significantly longer chela fingers compared to other species. With this discovery, the total number of documented scorpion species in Iraq has reached 23.

References

Abu Afifeh, B., Yağmur, E. A., Al-Saraireh, M. & Amr, Z. 2024. Revision of the genus Scorpio in Jordan, with a description of a new genus and three new species (Scorpiones: Scorpionidae). Euscorpius, 391, 1-66.

Ahmed, S. T. 2015. Morphology and histology of venom gland of Scorpio maurus kruglovi (Birula, 1910) (Scorpionidae: Scorpiones). Zanco Journal of Pure and Applied Sciences, 27 (5), 59-62.

Al-Azawi, Z. N. 2016. List of Scorpions recorded for the first time in Iraq. Ibn AL-Haitham Journal for Pure and Applied Science, 29 (1), 49-57.

Al-Saraireh, M., Yağmur, E. A., Abu Afifeh, B. & Amr, Z. 2023. A new species of Scorpio from Jordan (Scorpiones: Scorpionidae). Euscorpius, 369, 1-17.

Birula, A. A. 1910. Ueber Scorpio maurus Linné und seine Unterarten. Horae Societatis Entomologicae Rossicae, 39, 115-192.

Al-Yacoub, G. A. A., Al-Abbad, M. Y. & Kareem, D. K. 2021. Redescription of Scorpio kruglovi (Birula, 1910) (Scorpiones, Scorpionidae) from Thi Qar province, south of Iraq. Bulletin of the Iraq Natural History Museum, 16 (3), 389-398.

https://doi.org/10.26842/binhm.7.2021.16.3.0389

Brecko, J., Mathys, A, Dekoninck, W, Leponce, M, Vanden Spiegel, D, Semal, P. 2014. Focus stacking: Comparing commercial top-end set-ups with a semi-automatic low budget approach. A possible solution for mass digitization of type specimens. ZooKeys, 464, 1-23.

https://doi.org/10.3897/zookeys.464.8615

El-Hennawy, H. K. 1992. A catalogue of the scorpions described from the Arab countries (1758-1990) (Arachnida: Scorpionida). Serket, 2 (4), 95-153.

Fet, V. 2000. Family Scorpionidae Latreille, 1802. In: Fet, V., Sissom W. D., Lowe, G., Braunwalder, M. E., eds. Catalog of the Scorpions of the World (1758-1998). New York: The New York Entomological Society, 427-486.

Francke, O. F. 1977. Scorpions of the genus Diplocentrus from Oaxaca, Mexico (Scorpionida, Diplocentridae Journal of arachnology, 4, 145-200.

Hussen, F. S. & Ahmed, S. T. 2020. New data of scorpion fauna, include two new records with identification key of scorpion species (Arachnida: Scorpiones) in Iraq. Plant Arch. 20 (2), 6711-6725.

Hjelle, J. T. 1990. Anatomy and morphology. In: Polis, G.A., ed. Biology of Scorpions. Stanford, CA: Stanford University Press, 9-63.

Kachel, H. 2020. Scorpion fauna and scorpionism in Zakho Province of Northern Iraq. Commagene Journal of Biology, 4 (1), 22-27.

https://doi.org/10.31594/commagene.710923

Koç, H., Sipahi, H. & Yağmur, E. A. 2017. Genetic diversity within Scorpio maurus (Scorpiones: Scorpionidae) from Turkey. North-Western Journal of Zoology, 1 (1), 27-33.

Kovařík, F. 2009. Illustrated catalog of scorpions. Part I. Introductory remarks; keys to families and genera; subfamily Scorpioninae with keys to Heterometrus and Pandinus species. Prague, Clairon Production, 1-170.

Khalaf, K. 1963. Scorpions reported from Iraq. Bulletin of Endemic Diseases (Baghdad), 5, 59-70.

Khalaf, L. 1962. A small collection of scorpions from Iraq. Bulletin of the Iraq Natural History Institute, 4, 1-3.

Khammassi, M., Harris, D. J., Sadine, S. E., Bouhissi, M. E. & Nouira, S. 2023. Description of a new species of Scorpio (Scorpiones: Scorpionidae) from Northwestern Algeria using morphological and molecular data. Biologia, 78 (4), 1047-1058.

https://doi.org/10.1007/s11756-022-01306-1

Levy, G. & Amitai, P. 1980. Arachnida I: Scorpiones. Israel Academy of Sciences and Humanities, Jerusalem, 1-130. (Fauna Palaestina.)

Lourenço, W. R. 2009. Reanalysis of the genus Scorpio Linnaeus 1758 in sub-Saharan Africa and description of one new species from Cameroon (Scorpiones: Scorpionidae). Entomologische Mitteilungen aus dem Zoologischen Museum Hamburg, 15, 99-113.

Lourenço, W. R. & Cloudsley-Thompson, J. L. 2009. A new species of the genus Scorpio Linnaeus 1758 from Sudan (Scorpiones: Scorpionidae). Boletin Sociedad Entomológica Aragonesa, 45, 123-126.

Lourenço, W. R. & Cloudsley-Thompson, J. L. 2012. About the enigmatic presence of the genus Scorpio Linnaeus, 1758 in Congo with the description of a new species from Niger (Scorpiones: Scorpionidae). Serket, 13 (1-2), 1-7.

Lourenço, W. R., Duhem, B. & Cloudsley-Thompson, J. L. 2012. Scorpions from Ennedi, Kapka and Tibesti, the mountains of Chad, with descriptions of nine new species (Scorpiones: Buthidae, Scorpionidae). Arthropoda Selecta, 21 (4), 307-338.

https://doi.org/10.15298/arthsel.21.4.03

Lourenço, W. R. & Rossi, A. 2016. Confirmation of a new species of Scorpio Linnaeus, 1758 in the Tassili N'Ajjer Mountains, South Algeria (Scorpiones: Scorpionidae). Onychium, 12, 11-18.

Mohammad, K. M., Afrasiab, S. R., Al-Zubaidi, A. A. & Abdul-Rassoul, M. S. 2017. Survey for cave animals of Iraqi Kurdistan. Journal of Biodiversity and Environmental Sciences, 10, 217-232.

Prendini, L., Crowe, T. M. & Wheeler, W. C. 2003. Systematics and biogeography of the family Scorpionidae Latreille, with a discussion of phylogenetic methods. Invertebrate Systematics, 17, 185-259.

https://doi.org/10.1071/IS02016

Penther, A. 1912. Wissenschaftliche Ergebnisse der Expedition nach Mesopotamien, 1910. Scorpiones. Scorpiones. Annalen des Kaiserlich-Königlichen Naturhis-torischen Hofmuseums in Wien, 26 (1-2), 109-115.

Rein, J. O. 2025. The Scorpion Files. Trondheim: Norwegian University of Science and Technology. Available from: https://www.ntnu.no/ub/scorpion-files/ [accessed 20 Feb 2025].

Simon, E. 1872. Arachnides de Syrie rapportés par M. Charles Piochard de la Brûlerie (Scorpions et Galeodes). Annales de la Société entomologique de France, 2, 247-264.

Simon, E. 1880. Quelques Scorpions qui lui ont été donnés par notre confrère M. Reiche, de la part de M. F. de Saulcy, qui les a reçus de Mossoul (ancienne Ninive), sur le Tigre, en Mésopotamie. Annales de la Sociéte Entomologique de France, 5 (10), 29.

Sissom, W. D. 1990. Systematics, biogeography and paleontology. In: Polis G.A., ed. The Biology of Scorpions. Stanford University Press, Stanford, CA, 64-160.

Soleglad, M. E & Sissom W. D. 2001. Phylogeny of the family Euscorpiidae Laurie, 1896: a major revision. In: Fet, V. & Selden, P. A., eds. Scorpions 2001. In Memoriam Gary A. Polis. British Arachnological Society, Burnham Beeches, Buckinghamshire, 25-111.

https://doi.org/10.1017/S1752756200004075

Stahnke, H. L. 1971. Scorpion nomenclature and mensuration. Entomological News, 81, 297-316.

Talal, S., Tesler, I., Sivan, J., Ben-Shlomo, R., Tahir H. M., Prendini, L., Snir, S. & Gefen, E. 2015. Scorpion speciation in the Holy Land: Multilocus phylogeography corroborates diagnostic differences in morphology and burrowing behavior among Scorpio subspecies and justifies recognition as phylogenetic, ecological and biological species. Molecular phylogenetics and evolution, 91, 226-237.

https://doi.org/10.1016/j.ympev.2015.04.028

Vachon, M. 1952. Études sur les Scorpions. Institut Pasteur d'Algérie, Alger, 1-482.

Vachon, M. 1974. Étude des caractères utilisés pour classer les familles et les genres de Scorpions (Arachnides). 1. La trichobothriotaxie en arachnologie. Sigles trichobothriaux et types de trichobothriotaxie chez les Scorpions. Bulletin du Muséum National d' Histoire Naturelle, 104, 857-958.

https://doi.org/10.5962/p.272660

Yağmur, E. A. & Badry, A. 2024. Description of a neotype of Scorpio palmatus (Ehrenberg, 1828) (Scorpiones: Scorpionidae). Serket, 20 (3), 215-229.

Yağmur, E. A., Hussen, F. S., Karakurt, S., Kurt, R., Sipahioğlu, Ö. & Kartal, İ. 2024. Two new species of the genus Scorpio from Southeastern Turkey (Scorpiones: Scorpionidae). Arthropoda Selecta, 33 (4), 559-581.

https://doi.org/10.15298/arthsel.33.4.11

Ythier, E. & François, A. 2023. The scorpion fauna of the Oriental region in Morocco (Scorpiones: Buthidae, Scorpionidae) with description of three new species of the genus Scorpio Linnaeus, 1758. Faunitaxys, 11 (3), 1-15.

Ythier, E., Sadine, S. E., Bengaid, Y. & Lourenço, W. R. 2024. A new species of Scorpio Linnaeus, 1758 from Algeria (Scorpiones: Scorpionidae) and a new case of vicariance. Arachnides, 113, 1-11.

Published
2025-08-26
How to Cite
Yagmur, E. A., Kachel, H. S., Hussen, F. S., Al-Khazali, A. M., Ali, F. R., Al-Jubouri, M. A. K., Hamad, I. I., & Sdiq, A. B. (2025). A new Scorpio (Scorpiones, Scorpionidae) species from Northern Iraq. Zoodiversity, 60(1). https://doi.org/10.15407/zoo2026.01.001
Section
Fauna and Systematics