Clare Island Survey — Hemvpiera. 30 3 



were collected there. Most of these were found in the east, where there 

 is some stunted native wood. It will he noticed that a few of these were 

 not found on the adjacent parts of the mainland, though there is no 

 reason why they should not be found throughout the district. Amongst 

 the less common Hemiptera occurring on the island are Orthostira ccrrina, 

 Gcrris costac, Dim/pirns pallidicomis, Nbtonccta furcata, Corixa Scotti, and 

 Corixa Bcmsdorffi. Not a single representative of the family Pentatomidae 

 was found on the island. 



With regard to the way in which the hemipterous fauna found its way to 

 Clare Island, there seems little doubt that it must have reached that area 

 while it was yet joined to the mainland. No doubt the great majority of the 

 species are winged, yet, with few exceptions, they cannot be regarded as strong 

 fliers, and, compared with beetles, they are rarely seen on the wing. I would 

 be inclined to believe that, short of the assistance of strong gales of wind, the 

 three miles of open sea which separate the island from the nearest point of 

 the mainland would be quite an effectual barrier ' to these insects. Some 

 few Hemiptera, such as Aupophilus, are devoid of wings. 



Amongst the Heteroptera two species — Dicyplms Epilobii and CoHxa 

 Seotti—h&ve not been previously recorded from Ireland ; while of the 

 Cicadina, a group which is very imperfectly known in this country, some 

 thirty species are now recorded as Irish for the first time. I have notes, 

 however, of the occurrence of the great majority of these in other Irish 

 localities. 



1 am indebted to Mr. J. Edwards, f.e.s., for kindly verifying the 

 identification of certain of the more critical species. 



The initial letters following the species in the general list stand for the 

 following localities : — 



A = Achill. Cb = Castlebar. 



15 = Inishbofin. L = Louisburgh. 



Be = Belclare. P = Croaghpatrick. 



C = Clare Island. W = Westport, 



LIST OF SPECIES. 

 Heteropteea. s> ar e nar i us Hahn.-C. 



Tropieoris rufipes L. — W. Drymus sylvaticus Fab. — C. 



Acanthosoma haemorrhoidale L. — A. Scolopostethus decoratus Hahn.— W. 



A. dentatum De G. — A. Piesma quadrata Fieb. — W. 



Cymus grandicolor Halm. — Be, Cb, W. Orthostira briuinea Germ. — W. 



Stygnus rusticus Full. — W. 0. cervina Germ. — C. 



S. pedestris Fall. — W. 0. parvula Fall. — C, L. 



A2 



