{{Short description|Genus of mites}} {{Automatic taxobox |image = Eylais_sp._(28121639312).jpg |image_caption =Eylais sp. |taxon = Eylais |authority = Latreille, 1796 }}
'''''Eylais''''' is a genus of mites belonging to the family Eylaidae.<ref name="GBIF">{{cite web |title=Eylais Latreille, 1796 |url=https://www.gbif.org/species/5173894 |website=www.gbif.org |access-date=24 February 2021 |language=en}}</ref>
The genus has cosmopolitan distribution.<ref name="GBIF" />
Species:<ref name="GBIF" /> * ''Eylais abitibiensis'' <small>Marshall, 1929</small> * ''Eylais amplipons'' <small>Viets</small>
== Biology == ''Eylais'' mite larvae are ectoparasites of diving beetles (Dytiscidae). They attach mainly to the ventral side of the hindwings underneath the elytra and may be feeding on hemolymph from here.<ref name=":0">{{Cite journal |last=Aiken |first=R. B. |date=1985-02-01 |title=Attachment sites, phenology, and growth of larvae of Eylais sp. (Acari) on Dytiscus alaskanus J. Balfour-Browne (Coleoptera: Dytiscidae) |url=http://www.nrcresearchpress.com/doi/10.1139/z85-041 |journal=Canadian Journal of Zoology |language=en |volume=63 |issue=2 |pages=267–271 |doi=10.1139/z85-041 |issn=0008-4301|url-access=subscription }}</ref>
The smallest (and hence youngest) larvae occur on beetles in early spring, suggesting that some ''Eylias'' overwinter on their hosts. The larvae grow rapidly and reach their maximum size in late June/July, then advance to a nonparasitic life stage. Parasitism rates of ''Eylias'' on beetles are highest in early spring, decline through the summer and increase again in autumn.<ref name=":0" />
==References== {{Reflist}}
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Category:Trombidiformes Category:Trombidiformes genera Category:Taxa named by Pierre André Latreille