Syagrus (beetle)
{{Short description|Genus of leaf beetles from Africa}}
{{other uses|Syagrus (disambiguation)}}
{{Automatic taxobox
| taxon = Syagrus (beetle)
| display_parents = 2
| authority = Chapuis in Lacordaire, 1874{{cite contribution|last=Chapuis|first=F.|year=1874|title=Tome dixième. Famille des phytophages|url=https://biodiversitylibrary.org/page/9655043|editor-last1=Lacordaire|editor-first1=J.T.|editor-last2=Chapuis|editor-first2=F.|encyclopedia=Histoire naturelle des Insectes. Genera des coléoptères|volume=10 |publisher=Librairie Encyclopédique de Roret|place=Paris|pages=i–iv, 1–455}}
| type_species = Syagrus buqueti
(= Cryptocephalus calcaratus Fabricius, 1775)
| type_species_authority = Chapuis, 1874
}}
Syagrus is a genus of leaf beetles in the subfamily Eumolpinae. They are known from the mainland of Africa. They are often attracted by plants in the family Malvaceae; Syagrus rugifrons and Syagrus calcaratus are pests of cotton. The larvae of Syagrus calcaratus attack the roots of the plant and cause it to wilt.
Many species described from Madagascar were included in Syagrus by Jan Bechyně in the 1940s to 1960s. These species have been transferred to the related genus Pheloticus, restricting Syagrus to the mainland of Africa.{{cite journal|first=B. J.|last=Selman|year=1965|title=A revision of the Nodini and a key to the genera of Eumolpidae of Africa (Coleoptera: Eumolpidae)|url=https://archive.org/download/biostor-86049/biostor-86049.pdf|journal=Bulletin of the British Museum (Natural History) Entomology|volume=16|issue=3|pages=141–174|doi=10.5962/bhl.part.21864}}{{cite journal|last=Zoia|first=S.|year=2023|title=Considerations on the genus Syagrus Chapuis 1874 and the taxa ascribed to it (Coleoptera: Chrysomelidae: Eumolpinae)|journal=Natural History Sciences|volume=10|issue=Supplement 1|pages=37–44|doi=10.4081/nhs.2023.691|doi-access=free}} Many additional species of Syagrus described from mainland Africa have been transferred to other African Eumolpinae genera such as Afroeurydemus, Microsyagrus and Proliniscus.{{cite journal|last=Zoia|first=S.|year=2019|title=Nomenclature changes in African Eumolpinae with reference to type specimens preserved in the Muséum national d'Histoire naturelle, Paris (Coleoptera: Chrysomelidae)|journal=Annales de la Société Entomologique de France |series=Nouvelle Série|volume=55|issue=1|pages=61–86|doi=10.1080/00379271.2018.1556119|s2cid=155689938}}
Species
Species of Syagrus include the following:
- Syagrus bodongi Weise, 1905 – "Rhodesia"
- Syagrus calcaratus (Fabricius, 1775) – widely distributed across sub-Saharan Africa
- Syagrus concoloricornis Pic, 1940{{cite journal|last=Pic|first=M.|year=1940|title=Opuscula martialis|url=https://biodiversitylibrary.org/page/54289681|journal=L'Echange, Revue Linnéenne, Moulins|volume=Numéro spécial|pages=1–16}} – South Africa: Pretoria
- Syagrus fuscoaeneus Fairmaire, 1894 – "Senegal"
- Syagrus inhumeralis Pic, 1936 – Angola: "Osi"
- Syagrus interstitialis (Jacoby, 1904) – Angola, Zambia, Mozambique
- Syagrus morio Harold, 1877{{cite journal|last=Harold|first=E. von|year=1877|title=Coleopterorum species novae|url=https://biodiversitylibrary.org/page/12654717|journal=Mitteilungen der Münchener Entomologischen Vereins|volume=1|pages=97–111}} – central, eastern and southern Africa
- Syagrus opacus Jacoby, 1900 – Angola, Zambia, Zimbabwe, South Africa
- Syagrus ortobiensis Selman, 1963 – Chad, Sudan, Ethiopia, Somalia
- Syagrus perpuncticollis (Burgeon, 1940) – DR Congo
- Syagrus puncticollis (Harold, 1877) – Guinea, Sierra Leone, Sudan, DR Congo, Malawi, Mozambique
- Syagrus rufipennis Pic, 1940 – Tanzania: "Windi"
- Syagrus rufobrunneus Lefèvre, 1890 – Zimbabwe, Mozambique, South Africa
- Syagrus rugiceps Lefèvre, 1890 – Somalia, Mozambique, South Africa
- Syagrus rugifrons Baly, 1878{{cite journal|first=J. S.|last=Baly|year=1878|title=Description of New Species and Genera of Eumolpidæ|url=https://academic.oup.com/zoolinnean/article-pdf/14/75/246/16722611/j.1096-3642.1878.tb01834.x.pdf|journal=Zoological Journal of the Linnean Society|volume=14|issue=75|pages=246–265|doi=10.1111/j.1096-3642.1878.tb01834.x}} – Tanzania, South Africa
- Syagrus sehranus Aslam, 1968{{cite journal|last=Aslam|first=N. A.|year=1968|title=Nomenclatorial notes on Chrysomeloidea (Coleoptera)|journal=Journal of Natural History|volume=2|issue=1|pages=127–129|doi=10.1080/00222936800770691}} – Algeria: Adrar des Ifoghas
- Syagrus silfverbergi Selman, 1973{{cite journal|last=Selman|first=B. J.|year=1973|title=Coleoptera from North-East Africa. Chrysomelidae: Eumolpinae. (Zoological contribution from the Finnish expeditions to the Sudan No. 34)|url=http://bionames.org/references/ff43482cd46240c4944ee93163a6b26f|journal=Notulae Entomologicae|volume=53|issue=4|pages=159–166}} – South Sudan: Equatoria: Torit-Kapoeta
- Syagrus strigaticeps (Lefèvre, 1891){{cite journal|last=Lefèvre|first=E.|year=1891|title=Descriptions d'espèces nouvelles de Clytrides et d'Eumolpides|url=https://biodiversitylibrary.org/page/12304179|journal=Annales de la Société Entomologique de Belgique|volume=35|pages=CCXLVIII–CCLXXIX}} – "Afrique occidentale"
- Syagrus tristis Jacoby, 1904 – Sudan, Congo, Mozambique, South Africa
References
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