Parys Underground Group / Grwp Tanddaearol Parys

Flora and Fauna at Parys Mountain

The mountain looks a barren and forbidding landscape however many species do exist and are researched and catalogued by local specialists. Some of their work and lists are shown below. 


Invertebrates found at Mynydd Parys (6/7/1997) John Bratton, Menai Bridge

Settling pond (SH441 899)
Clear water about 2 feet deep. Mat of reddish Algae over much of the surface.
Water beetles:- Agabus sturmii, Hydroporus planus, Gyrinus substriatus
Ground beetle:-           Notiophilus biguttatus (Shown opposite)
Water boatman:-         Sigara nigrolineata.

Settling pond (30 yards from that above)

Water Beetles:-            Hydroporus tristis
Leaf beetle:-                 Plateumaris sericea sens. lat.
Blue-tailed Damselfly:-  Ischnura elegans (Shown opposite)        

Large fen east of Trysglwyn isaf (SH446 901)
Sphagnum, Phragmites

Water beetles
:- Hydroporus morio (*) and Hydroporus melanarius          (*) first Anglesey record of this species.
Ground beetle:-           Dromius linearis
Green Tiger Beetle:-    Cicindela campestris (larvae) (Shown opposite)

Pond east of Pen y Mynydd (SH437 900)
Potentilla palustris, Sparganium erectum, Eleocharis, Littorella
Leaf beetles: Phyllodecta vulgatissima,  (Shown opposite)
Chalcoides fulvicornis
Weevil:-                       Ramphus pulicarius

Spiders  (21 March 1998)

Richard Gallon, Llandudno,

Alopecosa barbipes                SH441902

Zygiella x-notata                     SH441902

More information

Metellina mengei                     SH451904

Hahnia montana                      SH451904  

Erigone atra                            SH451904


Porhomma pygmaeum            SH451904


Arctosa perita                        SH452905

Segestria senoculata               SH452905

Centromerita concinna           SH451904


Lepthyphantes tenuis              SH451904


Savignia frontata                    SH451904


 Lichen (February 1987)  P. O Purvis (NCC)
Acarosporian sinopicae  
Huilia tuberculosa  
Rhizocarpon obscuratum  
Rhizocarpon oederi  
Rhiizocarpon furfurosum  
Acarospora  scabrida  
Psiliolechia leprosa  

Lichens are small plants composed of an intimate association of fungi and algae. Lichen found at Mynydd Parys include unusual and scares species able to tolerate the high levels of normally toxic metals such as copper, Zinc and bismuth which is found here.
Natural rock outcrops rich in heavy metals must have occurred in Wales at one time, and supported these unusual lichen communities. So extensive has exploitation of this resource been that no significant natural examples are known to survive. In order to protect these species, man made habitats must be selected. Mynydd parys is one of the few metal mines working in Britain which have a relatively undisturbed since mining ceased and lie in areas with relatively low atmospheric pollution. As a result it supports a rich and unusual lichen flora, including a range of species and communities which are restricted to mineraslised substrates. More than 125 Lichen species have been recorded from the minerlaised substrates alone; a number of these are very scares in Wales being restricted to metal rich substrates and at least one species (Leciea sp) is new to Britain and possibly new to Science.
The flora of the old spoil heaps and metalliferous rock outcrops is dominated by Lichens of the community acarosporion sinopicae which are particularly characteristic of rocks rich in iron sulphide. The most abundant species here include Acarospora sinopica, Porpidia tuberculosa and Rhizocarpon obscuratum, whilts the notable species, Rhizocarpon furfurosom is a frequent associate.
The ruined mine buildings and walls provide furher distintive microhabitats, such as copper rich mortar filled crevices in which a community characterised by Psilolechia leprosa occurs. other distintive mettalphpyte species which have been recorded include Tremolecia atrata, stereocaulon leucophaeopsis and lecanora epanora.
In lessmetal rich areas terricolous lichens are found associated with heather Callun vulgaris. The abundant Cladonia species in this community include C.fragilissima in one of only 3 know localities in Wales.
Nine areas of the mountain, around the great open cast, the windmill, and old mine buildings have been selected as biological SSSIs.

Invertebrates collected at Parys Mountain Adrian Fowles, CCW, on 14 May 1996

Forficula auricularia              common earwig

Cicindela campestris               green tiger beetle

Coccinella septempunctata     seven-spot ladybird

Micrambe vini                         a silken fungus beetle


Lochmaea crataegi                 hawthorn leaf beetle

Exapion ulicis                         gorse weevil

Protopirapion atratulum        a seed weevil


Sitona regensteinensis             a weevil


Phyllobius pyri                        common leaf weevil


Micrelus ericae                        small heather weevil


Anthonomus pedicularis         a weevil

Arctosa perita                        a wolf spider

30 birds seen at Parys Mountain in 2002 (Paul Branch)

Common crow, Jackdaw, Raven, Blackbird, Swallow, Swift, House Martin, Pheasant, Heron, Cormorant, Mallard, Moorhen, Herring Gull, Black Eyed Gull, Buzzard, Sparrow hawk, Kestral, Stock Dove, Wood Pigeon, Blue Tit, Great Tit, Robin, Chaffinch, Wren, Pied wagtail, Wheatear, Meadow Pipit, Stonechat, Willow Warbler.