Journal of Insect Biodiversity and Systematics

Journal of Insect Biodiversity and Systematics

Global distribution of the genus Diomus Mulsant (Coleoptera: Coccinellidae), with new findings from the Middle East

Document Type : Full-length Research Article

Authors
Amir Biranvand 1
Fatemeh Romasi 2
Naser Moeini Naghadeh 3
Farzad Jalilian 4
Romain Nattier 5
Jaroslav Větrovec 6
Guillermo González 7
Oldřich Nedvěd 8
1 Department of Plant Protection, Faculty of Agriculture, Lorestan University, Khoramabad, Iran.
2 Department of Plant Protection, Campus of Agriculture & Natural Resources, Razi University, Kermanshah, Iran
3 Department of Plant Protection, Campus of Agriculture & Natural Resources, Razi University, Kermanshah, Iran.
4 Agricultural and Natural Resources Research and Education Center of Kermanshah, AREEO, Kermanshah, Iran.
5 Institut de Systématique, Evolution, Biodiversité (ISYEB), Muséum National d’Histoire Naturelle, CNRS, SU, EPHE, UA, Paris, France
6 Buzulucká 1105, Hradec Králové 500 03, Czech Republic
7 Sociedad Chilena de Entomología, Santiago, Chile
8 Faculty of Science, University of South Bohemia, České Budějovice, Czech Republic
10.48311/jibs.12.02.213
Abstract
A comprehensive worldwide list of 425 species of the ladybird genus Diomus Mulsant, 1850, is provided, together with the number of countries occupied by each species in the major biogeographical regions. Thirteen of the species formally assigned to the genus must be confirmed. Also, records of Diomus species occurring in the Middle East are documented, and the genus Diomus is reported from Oman for the first time, based on a female specimen of an undetermined species. Findings exclude previous reports of D. rubidus (Motschulsky, 1837) from Turkey and D. anemicus Fürsch, 1960 from Palestine. We provide a distribution map of Diomus species in the Middle East and present morphological and morphometric characters based on light and electron microscopy. Finally, we propose the replacement name Diomus stajerovae González and Větrovec, nom. nov., for D. panamensis González and Větrovec, 2021, which is a junior homonym of D. panamensis Gorham, 1897.

Graphical Abstract

Global distribution of the genus Diomus Mulsant (Coleoptera: Coccinellidae), with new findings from the Middle East
Keywords
Checklist
Ladybird beetles
Biogeography
New record
Junior homonym
New name

Subjects

Al Ansi, A., Alkhalaf, A.A., Fadl, H., Rasool, I. & Al Dhafer, H. (2020) An annotated checklist of Coccinellidae (Insecta, Coleoptera) with eight new records from the Kingdom of Saudi Arabia. ZooKeys, 1006, 35–89.      https://doi.org/10.3897/zookeys.1006.59123
Ali, H.A., Abdul-Rassoul, M.S. & Swail, M.A. (1990) Systematic list of Coccinellidae recorded for Iraq. Bulletin of the Iraq Natural History Museum, 8 (3), 45–51.
Bi, K., Liang, X., Peng, F., Huo, L. & Chen X. (2024) Contribution to the knowledge of the ladybird beetle genus Diomus Mulsant (Coleoptera: Coccinellidae), with description of a new species from China. Zoological Systematics, 49 (4), 320–330.              https://doi.org/10.11865/zs.2023121
Bielawski, R. (1973) Rhyzobiini, Stethorini, Scymnini et Pharini (Coleoptera, Coccinellidae) de Nouvelle Calédonie. Annales Zoologici, 30 (14), 387–409.
Biranvand, A., Nedvěd, O., Tomaszewska, W., Al Ansi, A.N., Fekrat, L., Haghghadam, Z.M., Zare Khormizi, M., Noorinahad, S., Şenal, D., Shakarami, J. & Haelewaters, D. (2019) The genus Harmonia (Coleoptera, Coccinellidae) in the Middle East region. Acta Entomologica Musei Nationalis Pragae, 59 (1), 163–170. https://doi.org/10.2478/aemnp-2019-0014
Biranvand, A., Hesami, S., Gheibi, M., Fekrat, L. & Nedvěd, O. (2021) Additional notes to the morphology of Hyperaspis pseudopustulata Mulsant, 1853 (Coleoptera: Coccinellidae). Journal of Insect Biodiversity and Systematics, 7, 67–73.     https://doi.org/10.52547/jibs.7.1.67
Biranvand, A., Fekrat, L., Větrovec, J., Ghobahi, H., Hamidi, E., Zare Khormizi, M., Azadbakht, N., Nedvěd, O., Romasi, F. & Ceryngier, P. (2024) Checklist and distribution of ladybirds (Coleoptera, Coccinellidae) in Iranian provinces. Zootaxa, 5493 (2), 101–128. https://doi.org/10.11646/zootaxa.5493.2.1
Bouchard, P. (2017) Checklist of Beetles (Coleoptera) of Canada and Alaska. Second Edition. Version 7.3. Université de Montréal Biodiversity Centre. Checklist dataset https://doi.org/10.5886/998dbs2a [Accessed via GBIF.org, December 12, 2025]
Casey, T.L. (1899) A revision of American Coccinellidae. Journal of the New York Entomological Society, 7, 71–169.
Chapin, E.A. (1933) A new genus of West Indian Coccinellidae (Coleoptera). Proceedings of the Biological Society of Washington, 46, 95‒99.
Chazeau, J. (1983) Révision des Scymnus Néo-Guinéens de Jordan [Coleoptera, Coccinellidae]. Revue Française d'Entomologie (N.S.), 5 (2), 45‒53.
Chazeau, J. (1985) Nouveaux Diomus Néo-Guinéens [Coleoptera, Coccinellidae]. Revue Française d'Entomologie (N.S.), 7 (3), 97–106.
Chazeau, J. (1987) Complément sur les Diomus de Nouvelle-Guinée et des archipels voisins [Coleoptera, Coccinellidae]. Revue Française d'Entomologie (N.S.), 9 (3), 101–113.
Chazeau, J. (1993) Diomus Néo-Guinéens nouvelles espèces de Papouasie et complénients sur la répartition des espèces connues (Coleoptera : Coccinellidae). Annales de la Société entomologique de France (N.S.), 29 (2), 141–158.           https://doi.org/10.1080/21686351.1993.12277865
Che, L., Zhang, P., Deng, S., Escalona, H.E., Wang, X., Li, Y., Pang, H., Vandenberg, N., Ślipiński, A., Tomaszewska, W. & Liang, D. (2021) New insights into the phylogeny and evolution of lady beetles (Coleoptera: Coccinellidae) by extensive sampling of genes and species. Molecular Phylogenetics and Evolution Molecular Phylogenetics and Evolution, 156, 107045. https://doi.org/10.1016/j.ympev.2020.107045
Fürsch, H. (1960) Neue Coccinellidae aus dem Museum Frey. Entomologische Arbeiten aus dem Museum G. Frey, 11, 298–303.
Fürsch, H. (1987) Neue afrikanische Scymnini-Arten (Coleoptera Coccinellidae) als Freβfeinde von Manihot-Schädlingen. Revue de Zoologie Africaine, 100, 387–394.
GBIF (2025) Diomus rubidus (Motschulsky, 1837). Available from https://www.gbif.org/species/7686442 [Accessed December 28, 2025]
González, G. (2011) Los Coccinellidae de Brasil [online]. Available from http://www.coccinellidae.cl/Paginas/paginasWebBra [Accesed January 01, 2025]
González, G. (2013) Lista y distribución de especies de Coccinellidae (Insecta: Coleoptera) presentes en Paraguay. Boletín del Museo Nacional de Historia Natural de Paraguay, 17, 40–62.
González, G. (2015a) Beetles (Coleoptera) of Peru: A Survey of the Families. Coccinellidae. Journal of the Kansas Entomological Society, 88 (2), 229–236. https://doi.org/10.2317/kent-88-02-229-236.1
González, G, (2015b). Especies nuevas y nuevos registros de coccinélidos (Coleoptera: Coccinellidae) de Ecuador. Boletín de la Sociedad Entomológica Aragonesa, 57, 143–163.
González, G. (2016) Descripción de 11 especies nuevas del género Diomus Mulsant (Coleoptera: Coccinellidae: Diomini) de América del Sur y nuevos registros para Brasil, Colombia, Ecuador y Perú. Boletín de la Sociedad Entomológica Aragonesa (S.E.A.), 59, 47–63.
González, G. & Honour, R. (2011) Especies nuevas del género Diomus Mulsant (Coleoptera, Coccinellidae) de América del Sur. Boletín de la Sociedad Entomológica Aragonesa, 49, 1–14.
González, G. & Větrovec, J. (2021) New species and records of Neotropical ladybirds (Coleoptera: Coccinellidae). Revista Chilena De Entomología, 47 (2), 331–374. https://doi.org/10.11646/zootaxa.5478.1.1
González, G., Kondo, T., Gasca-Álvarez, H.J., Sandoval-Espinel M.K., Niño-Suárez M.A. & Zambrano-Moreno, M.A. (2024) Coccinellidae (Coleoptera: Coccinelloidea) from Colombia: A systematic and illustrated list. Zootaxa, 5478, 1–172.               https://doi.org/10.11646/zootaxa.5478.1.1
Gordon, R.D. (1976) The Scymnini (Coleoptera: Coccinellidae) of the United States and Canada: key to genera and revision of Scymnus, Nephus and Diomus. Bulletin of the Buffalo Society of Natural Science, 18, 1–362.
Gordon, R.D. (1981) Lectotype designations, generic reassignments, and new synonymy in Neotropical Coccinellidae (Coleoptera). The Coleopterist Bulletin, 35, 423–425.
Gordon, R.D. (1985) The Coccinellidae (Coleoptera) of America north of Mexico. Journal of the New York Entomological Society, 93 (1), 1–912.
Gordon, R.D. (1999) South American Coccinellidae (Coleoptera), part VI: a systematic revision of the South American Diomini, new tribe (Scymninae). Annales Zoologici (Warszawa), 47 (Suppl. 1), 1–219.
Gorham, H.S. (1897) Biologia Centrali-Americana, Insecta, Coleoptera, Coccinellidae, 7, 217–240.
Halperin, J., Merkl, O. & Kehat, M. (1995) An annotated list of the Coccinellidae (Coleoptera) of Israel and adjacent areas. Phytoparasitica, 23 (2), 127–137. https://doi.org/10.1007/BF02980972
Hesler. L.S., Perreira, W.D., Yee, D.A & Silva, J.H.S. (2020) New state and island records of Coccinellidae (Coleoptera) in Hawaii, USA. Insecta Mundi, 0795, 1–4.
Iablokoff-Khnzorian, S.M. (1976) Die palarktischen genera der Marienk fer-tribus Scymnini nebst Bemerkungen ber Scymnus fuscatus (Coleoptera: Coccinellidae). Entomological Germarica, 2 (4), 374–380. https://doi.org/10.1127/entom.germ/2/1976/374
ICZN (1999) International Code of Zoological Nomenclature. Fourth Edition. The International Trust for Zoological Nomenclature, London, 306 pp. https://www.iczn.org/the-code/the-international-code-of-zoologicalnomenclature/thecode-online
iNaturalist, (2025) Diomus rubidus. Available from: https://www.inaturalist.org/taxa/954638-Diomus-rubidus/ [Accessed December 28, 2025]
JAT Consulting (2025) Étude d’impact environnemental et social construction de 14 ponts en Guinee: région de Kankan. https://www.medd-agee.com/wp-content/uploads/2025/09/290824_Rapport-FIN_EIES-_-14_PONTS_KANKAN.pdf
Jordan, K. (1894) New species of the genus Scymnus Kugel. from the East and New-Guinea. Novitates Zoologicae, 1 (1), 122–138. https://doi.org/10.5962/bhl.part.24569
Korschefsky, R. (1931) Coleopterorum Catalogus, pars 118 Coccinellidae I. Dr W Junk, Berlin. 224 pp.
Kovář, I. (2007) Coccinellidae. In: Löbl, I. & Smetana, A. (eds) Catalogue of Palaearctic Coleoptera, Volume 4. Elateroidea, Derodontoidea, Bostrichoidea, Lymexyloidea, Cleroidea, Cucujoidea. Apollo Books, Stenstrup, pp. 71–74, 568–630.
Leeper, J.R. (1976) A Review of the Hawaiian Coccinellidae. Proceedings Hawaiian Entomological Society, 22 (2), 279–306.
Miro-Agurto, J. & González, G. (2015) Primer listado de las especies de coccinélidos del departamento de Madre de Dios, Perú (Coleoptera: Coccinellidae). Revista Peruana de Entomología, 50 (2), 39–44.
Morrone, J.J. (2015) Biogeographical Regionalisation of the World: A Reappraisal. Australian Systematic Botany, 28 (3), 81–90. https://doi.org/10.1071/SB14042
Mulsant, E. (1850) Species des Coléoptères trimères sécuripalpes. Annales des Sciences Physiques et Naturelles, d’Agriculture et d’Industrie, Lyon, 2nd Series, 2, 1–1104. https://doi.org/10.5962/bhl.title.8953
Najajrah, M.H., Swaileh, K.M. & Qumsiyeh, M.B. (2019) Systematic list, geographic distribution and ecological significance of lady beetles (Coleoptera: Coccinellidae) from the West Bank (Central Palestine). Zootaxa, 4664 (1), 1–46.            https://doi.org/10.11646/zootaxa.4664.1.1
Nattier, R., Jourdan, H., Mille, C. & Chazeau, J. (2015) An annotated checklist of the Coccinellidae (Coleoptera) from New Caledonia. Zootaxa, 4058 (3), 301–331. https://doi.org/10.11646/zootaxa.4058.3.1
Nedvěd, O. (2020) Ladybird beetles (Coccinellidae) of Central Europe. 2nd edition. Academia, Praha. 304 + LXXIX pp.
Nedvěd, O. & Djurić, M. (2022) Ladybirds of Europe. Habiprot, Novi Sad. 208 pp.
Nestor-Arriola, J.I., Clark, S.M. & Niño-Maldonado, S. (2022) Updated List of Coccinellidae (Coleoptera) of the state of Tamaulipas, Mexico, with new records from other states. Southwestern Entomologist, 47 (2), 411–428.  https://doi.org/10.3958/059.047.0217
Özden, Ö., Uygun, N. & Kersting, U. (2006) Ladybird beetles (Coleoptera: Coccinellidae) from northern Cyprus, including six new records. Zoology in the Middle East, 39, 97–100. https://doi.org/10.1080/09397140.2006.10638188
Pang, X.F. & Gordon, R.D. (1986) The Scymnini (Coleoptera: Coccinellidae) of China. The Coleopterists Bulletin, 40 (2), 157–199.
Pang, H. & Ślipinski, A. (2009) Revision of the Australian Coccinellidae (Coleoptera). Genus Diomus Mulsant. Part 1. Annales Zoologici, 59 (4), 645‒702. https://doi.org/10.3161/000345409X485008
Pang, H. & Ślipinski, A. (2010) Revision of the Australian Coccinellidae (Coleoptera). Genus Diomus Mulsant. Part 2. Annales Zoologici, 60 (4), 493‒545. https://doi.org/10.3161/000345410X550382
Ramos, A.S., González, G. & Lemos, R.N. (2020) A new species of Diomus Mulsant (Coleoptera: Coccinellidae: Diomini) from the eastern Amazon. Revista Brasileira de Entomologia, 64, e20200014. https://doi.org/10.1590/1806-9665-rbent-2020-0014
Raimundo, A.C. & van Harten, A. (2000) An annotated checklist of the Coccinellidae (Insect: Coleoptera) of Yemen. Fauna of Saudi Arabia, 18, 211–243.
Raimundo, A.C., Fürsch, H. & van Harten, A. (2006) Notes on the ladybird beetles (Coleoptera: Coccinellidae) of Yemen, with the description of two new species. Fauna of Arabia, 21, 217–245.
Romanowski, J., Ceryngier, P., Větrovec, J., Zmuda, C. & Szawaryn, K. (2024) Diversity of ladybird beetles (Coleoptera: Coccinellidae) in Tenerife and La Gomera (Canary Islands): The role of size and other island characteristics. Insects, 15 (8), 1–19. https://doi.org/10.3390/insects15080596
Safari, A., Vahedi, H., Nehrangi, H., Roshan- Heidari, M., Biranvand, A., Nedvĕd, O & Madjdzadeh, S.M. (2025) A study of Coccinellid species with a focus on those associated with pistacia spp. (Anacardiacae) in western part of Iran. Iranian Journal of Animal Biosystematics, 21 (1), 45–73.
Serra, W.S., González, G. & Greco-Spíngola, S. (2013) Lista sistemática y distribución geográfica de las especies de Coccinellidae (Insecta: Coleoptera) presentes en Uruguay.Boletín de la Sociedad Entomológica Aragonesa (S.E.A.), 53, 229–242.
Ślipiński, A. (2007) Australian Ladybird Beetles (Coleoptera: Coccinellidae): Their Biology and Classification. Australian Biological Resources Study, Canberra, 286 pp.
Szawaryn, K., Nedvěd, O., Biranvand, A., Czerwinski, T. & Nattier, R. (2021) Revision of the genus Coccidula Kugelann (Coleoptera, Coccinellidae). Zookeys, 1043, 61–85. https://doi.org/10.3897/zookeys.1043.65829           
Uygun, N. & Karabüyük, F. (2013) Coccinellidae (Gelin Böcekleri), Türkiye Biyolojik Mücadele Derneği. http://www. biyolojikmucadele.org.tr/uploads/Coccinellidae.pdf [Accessed May 10, 2020]
Vandenberg, N.J. & Hanson, P.E. (2019) Overview of the lady beetle tribe Diomini (Coleoptera: Coccinellidae) and description of a new phytophagous, silk-spinning genus from Costa Rica that induces food bodies on leaves of Piper (Piperaceae). Zootaxa, 4554 (1), 255–285. https://doi.org/10.11646/zootaxa.4554.1.9
Vantaux, A., Roux, O., Magro, A., Ghomsi, N.T., Gordon, R.D., Dejean, A. & Orivel, J. (2010) Host-specific myrmecophily and myrmecophagy in the tropical coccinellid Diomus thoracicus in French Guiana. Biotropica, 42, 622–629.    https://doi.org/10.1111/j.1744-7429.2009.00614.x
Wang, X.M. & Chen, X.S. (2022) Illustrated Handbook of Ladybird Beetles in China. Straits Publishing House Company Limited, Fuzhou, China, 528 pp.
Weise, J. (1895) Neue Coccinelliden sowie Bemerkungen zu bekannten Arten. Annales de la Société Entomologique du Belgique, 1895, 120–146.
Webster, R.P, Webster, V.L., Alderson, C.A., Hughes, C.C. & Sweeney, J.D. (2016) Further contributions to the Coleoptera fauna of New Brunswick with an addition to the fauna of Nova Scotia, Canada. ZooKeys, 573, 265–338. https://doi.org/10.3897/zookeys.573.7327
Zhuang, J., Huo, L., Tang, M., Xie, X. & Chen, X. (2023) First report of Diomus guilavoguii Duverger, 1994 (Coleoptera, Coccinellidae, Diomini) predating on papaya mealybug Paracoccus marginatus from China. Biodiversity Data Journal, 11, e113291.  https://doi.org/10.3897/BDJ.11.e113291
Journal of Insect Biodiversity and Systematics
Volume 12, Issue 2
Spring 2026
Pages 213-232

  • Receive Date 09 September 2025
  • Revise Date 07 February 2026
  • Accept Date 09 February 2026
  • Publish Date 01 June 2026