View source for Haasea

{{Short description|Genus of millipede}}
{{Italic title}}
{{Automatic taxobox
| image =
| image_caption =
| taxon = Haasea
| authority = Verhoeff, 1895
| type_species = ''Craspedosoma flavescens''
| type_species_authority = Latzel, 1884
| synonyms =
* ''Xiphogona'' <small>Cook, 1895</small>
* ''Orobainosoma'' <small>Verhoeff, 1897</small>
* ''Rhopalogona'' <small>Silvestri, 1898</small>
* ''Deuterohaasea'' <small>Verhoeff, 1898</small>
}}
'''''Haasea''''' is a [[genus]] of [[Millipede|millipedes]] in the [[Family (biology)|family]] [[Haaseidae]].<ref name=":1">{{Cite web |title=MilliBase - Haasea Verhoeff, 1895 |url=https://www.millibase.org/aphia.php?p=taxdetails&id=891664 |access-date=2024-06-29 |website=www.millibase.org |language=en}}</ref> This genus is the largest in this family, with 17 accepted species.<ref name=":0">{{Cite journal |last1=Antić |first1=Dragan |last2=Akkari |first2=Nesrine |date=2020-06-16 |title=Haasea Verhoeff, 1895—a genus of tumultuous history and chaotic records—redefinition, revision of taxonomy and geographic distributions, with descriptions of two new species from Austria and Serbia (Diplopoda, Chordeumatida, Haaseidae) |url=https://www.researchgate.net/publication/342200732 |journal=Zootaxa |language=en |volume=4798 |issue=1 |pages=zootaxa.4798.1.1 |doi=10.11646/zootaxa.4798.1.1 |pmid=33056685 |issn=1175-5334}}</ref> Millipedes in this genus have either 28 or 30 segments (counting the collum as the first segment and the [[telson]] as the last).<ref name=":0" />
== Distribution ==
Millipedes in this genus are widespread in central [[Europe]], with a distribution across about 650 km from the [[Harz|Harz mountains]] in northern [[Germany]] down to the [[Durmitor]] massif in [[Montenegro]], and from [[Luxembourg]] and the French-Swiss border across to the [[Divisions of the Carpathians|Eastern Carpathian]] mountains in [[Romania]]. Most species appear in the [[Alps]] and the [[Dinaric Alps|Dinarides]], also extending to the [[Bohemian Massif|Bohemian massif]], the [[Ore Mountains|Ore mountains]], the [[Sudetes|Sudeten mountains]], and both the [[Western Carpathians|Western]] and Eastern Carpathian mountains, across the [[Pannonian Basin]], and to the [[Southern Carpathians|Southern Carpathian]] mountains and the [[Balkan Mountains|Balkan mountains]]. Although these millipedes are found in most of the Alps, they are absent from the [[Western Alps]], including the [[Pennine Alps]].<ref name=":0" />
== Taxonomy ==
The German [[Zoology|zoologist]] [[Karl Wilhelm Verhoeff|Karl W. Verhoeff]] first proposed ''Haasea'' in 1895 as a [[subgenus]] in the genus ''[[Craspedosoma]]'' to contain three species, including ''C. flavescens''.<ref>{{Cite journal |last=Verhoeff |first=Carl |date=1895 |title=Aphorismen zur Biologie, Morphologie, Gattungs- und Art-Systematik der Diplopoden |url=https://www.biodiversitylibrary.org/page/9728556#page/224/mode/1up |journal=Zoologischer Anzeiger |language=German |volume=18 |issue=476–478 |pages=203–244 [217–218] |via=Biodiversity Heritage Library}}</ref> Later in same year, however, the American [[Biologist|biologists]] [[Orator F. Cook]] and [[Guy N. Collins]] instead propose''d Xiphogona'' as a genus for ''C. flavescens'', which they designated as the [[type species]].<ref>{{Cite journal |last1=Cook |first1=O.F. |last2=Collins |first2=G.N. |date=1895 |title=The Craspedosomatidae of North America |url=https://www.biodiversitylibrary.org/page/35260543#page/17/mode/1up |journal=Annals of the New York Academy of Sciences |volume=9 |pages=1–100 [3] |doi=10.1111/j.1749-6632.1896.tb55430.x |via=Biodiversity Heritage Library}}</ref> Verhoeff responded in 1897 by proposing ''Orobainosoma'' as a genus for the same species.<ref name=":0" /> In 1898, the Italian zoologist [[Filippo Silvestri]] proposed ''Rhopalogona'' as a genus to replace ''Haasea''.<ref>{{Cite journal |last=Silvestri |first=F. |date=1898 |title=Contributo alla conosceza dei Diplopodi della fauna mediterranea |url=https://www.biodiversitylibrary.org/page/7785876#page/676/mode/1up |journal=Annali del Museo Civico di Storia Naturale di Genova, Serie 2 |volume=18 |pages=654–669 [666] |via=Biodiversity Heritage Library}}</ref> More names and confusion followed, until the Dutch [[Myriapodology|myriapodologist]] [[C. A. W. Jeekel|Casimir Albrecht Willem Jeekel]] recognized the validity of ''Haasea'' as a genus with ''Haasea flavescens'' as the type species in 1971. Authorities have since deemed all the other names proposed for this genus to be [[Synonym (taxonomy)|junior synonyms]] of ''Haasea''.<ref name=":0" />
== Description ==
Species in this genus have 28 or 30 segments and range from 6.5 mm to 12 mm in length. They vary in pigmentation, ranging from poorly pigmented to light or dark brown, but most species are a yellowish brown. Diagnostic features include the reduced size of the tenth leg pair in males compared to the other walking legs.<ref name=":0" /> Furthermore, the coxal processes of the posterior [[Gonopod|gonopods]] in the male have two or three branches rather than being unipartite.<ref>{{Cite journal |last1=Antić |first1=Dragan |last2=Spelda |first2=Jörg |date=2022-12-08 |title=Maurieseuma, a new genus to accommodate Hylebainosoma nontronense Mauriès & Kime, 1999, and the revalidation of the genus Romanosoma Mauriès, 2015 (Diplopoda: Chordeumatida: Haaseidae) |url=https://www.researchgate.net/publication/366094203 |journal=Zootaxa |language=en |volume=5219 |issue=2 |pages=193–200 [198] |doi=10.11646/zootaxa.5219.2.8 |pmid=37044868 |issn=1175-5334}}</ref><ref name=":0" />
== Species ==
This genus includes 17 species:<ref name=":1" /><ref name=":0" />
* ''[[Haasea cyanopida]]'' <small>(Attems, 1903)</small>
* ''[[Haasea faucium]]'' <small>(Verhoeff, 1931)</small>
* ''[[Haasea filicis]]'' <small>(Verhoeff, 1929)</small>
* ''[[Haasea flavescens]]'' <small>(Latzel, 1884)</small>
* ''[[Haasea fonticulorum]]'' <small>(Verhoeff, 1910)</small>
* ''[[Haasea germanica]]'' <small>(Verhoeff, 1901)</small>
* ''[[Haasea gruberi]]'' <small>Antić & Akkari, 2020</small>
* ''[[Haasea hungarica]]'' <small>(Verhoeff, 1928)</small>
* ''[[Haasea inflata]]'' <small>(Verhoeff, 1907)</small>
* ''[[Haasea intermedia]]'' <small>Mršić, 1985</small>
* ''[[Haasea lacusnigri]]'' <small>(Gulička, 1968)</small>
* ''[[Haasea makarovi]]'' <small>Antić & Akkari, 2020</small>
* ''[[Haasea microcorna]]'' <small>(Strasser, 1971)</small>
* ''[[Haasea musimontium]]'' <small>(Strasser, 1937)</small>
* ''[[Haasea plasana]]'' <small>(Verhoeff, 1899)</small>
* ''[[Haasea pretneri]]'' <small>(Strasser, 1966)</small>
* ''[[Haasea vidinensis]]'' <small>(Strasser, 1973)</small>
== References ==
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{{reflist}}
{{taxonbar|from1=Q4297347}}
[[Category:Chordeumatida]]
[[Category:Millipedes of Europe]]
[[Category:Millipede genera]]
[[Category:Taxa named by Karl Wilhelm Verhoeff]]