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Map of the sites holding the search term ""Oulimnius troglodytes""

There are 4 sites that mention "Oulimnius troglodytes".

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Milton Loch

…ng the Nationally Scarce species Hygrotus quinquelineatus, Ilybius fenestratus, Oulimnius troglodytes and Gyrinus aeratus. The site also contains a number of wetland habitats including willow carr of grey willow Salix cinerea and sallow Salix caprea. The marsh area contains globe…

River Test

… Atrichops crassipes a Rhagionid fly RDB3, the nationally scarce riffle beetles Oulimnius troglodytes, Riolus cupreus and Riolus subviolaceus and the alderfly Sialis nigripes which is mainly northern and western in distribution. Many of the nineteen species of mayfly noted are lo…

River Derwent and Tributaries

…ayfly Ephemeroptera and 17 species of caddis fly Trichoptera. The riffle beetle Oulimnius troglodytes which has a localised distribution is amongst seven species of aquatic beetle recorded. Also present is the aquatic bug Aphelocheirus aestivalis, a species which occurs in swift …

Afon Gwyrfai a Llyn Cwellyn

…ecorded in Llyn Cwellyn, namely Laccobius atratus a scavenger water beetle, and Oulimnius troglodytes a riffle beetle. Afon Gwyrfai The Afon Gwyrfai is considered to have very good chemical and biological water quality. The river is bordered predominantly by unimproved and semi-i…

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