Clare Island Survey — Aquatic Coleoptera. 



29 5 



Clare Island List. 



2 

 1 



1 

 3 

 5 

 1 

 1 



23 

 3 

 1 

 9 



12 

 2 



6 

 2 



1 

 2 

 5 

 36 

 13 

 1 

 2 



1 



By far the majority of the collections were made in peaty pools where 

 Sphagnum and Eriophorum formed the dominant vegetation and if we there- 

 fore take out of the above list those species which occurred in most collections 

 we have an association of peat-pool species as follows : — 



Hydroporus gyllenhalii, f 



Haliplus confinis, Steph. 



. 1 



Ehantus bistriatus, Bergstr. 



fulvus, F. 



2 



Dytiscus punctulatus, F. 



ruficollis, 1 Brit. auct. 



. 12 



marginalis, L. 



lineatocollis, Marsh. 



. 6 



Gyrinus minutus, F. 



Laccophilus obscurus, Panz. 



. 6 



natator, Scop. . 



Caelambus inaequalis, F. 



. 11 



Hydrobius fuscipes, L. 



Deronectes assimilis, Payk. 



1 



var. picicrus, Thorns. 



Hydroporus lepidus, 01. 



Q 



o 



Philhydrus melanocephalus, 01 



tristis, Payk. 



16 



minutus, F. 



gyllenhalii, Schiod. . 



20 



coarctatus, Gredl. 



palustris, L. 



. 6 



Paracymus nigroaeneus, Sahib. 



incognitus, Sharp 



6 



Anacaena globulus, Payk. 



erythrocephalus, L. . 



2 



limbata, F. 



celatus, Clark 



1 



Helochares punctatus, Sharp 



memnonius, Nic. 







Laccobius alutaceus, Thorns. 



obscurus, Sturm 



20 



minutus, L. 



nigrita, F. 



10 



Limnebius truncatellus, Thimb 



pubescens, Gyll. 



36 



Helophorus aquaticus, L. 



planus, F. 



1 



viridicollis, Steph. 



lituratus, F. 







brevipalpis, Bedel. 



Agabus paludosus, F. 



1 



Octhebius pygmaeus, E. 



sturmii, Gyll. . 



3 



lejolisii, Bey & Mids. 



bipustulatus, L. 



30 



Gyclonotum orbiculare, F. 



tlybius fuliginosus, F. 



2 





Hydroporus pubescens, 

 Helophorus viridicollis, 

 Agabus bipustulatus, 

 Philhydrus melanocephalus, 



36 



30 

 26 



obscurus, 

 tristis, 

 Anacaena globulus, 



20 



16 

 12 



These same eight species head the lists of the Skye and Eigg (loc. cit.) 

 and Coll 2 water-beetles, although not in precisely the same order. Thus the 



1 May include several speuies. Unfortunately no specimens were kept. 

 "- F. Balfour Brotvne : "The Aquatic Coleoptera of tlie Miu-Elm«ies. ; 

 April, 1910. 



Ann. Scolt. Nat. Hist., 



