158 TRANSACTIONS, NATURAL HISTORY SOCIETY OF GLASGOW. 



INSECTA. 



*COLEOPTERA. 



Silpha thoracica, Linn. Melanophthalmafuscala, Humm. 



Coccinella septempunctata, Linn. Agahus bipustulatus, Linn. 

 Philhydrus melanocephalus, Olivi. 



Hymenoptera. 

 Homalomyia canalicular is, Linn^ 



Lepidoptera. 

 Small white butterfly ( ? Pieris rapce). 



Hemiptera. 

 A species of " Boat-fly " (Corixa sp.). 



Thysanura. Arachnida. 



(?) Podura sp. A few " water mites." 



Myriapoda. 



Lithohius sp. lulus sp. 



Additional notes. — (1) In Pennant's "Tour in Scotland," fourth 

 edition, vol. ii., p. 190, that author, in referring to his visit to 

 Ailsa Craig, says, inter alia — "Three reptiles appeared here very 

 unexpectedly, the naked black snail, the common and the striped 

 shell snail: not volunteer inhabitants, but probably brought in 

 the salads of some visitants from the neighbouring shores." 



(2) My friend, Mr. James Steel, informs me that he observed 

 the Wood Tiger Moth (?) Chelonia 2^lcmtaginis, Linn., on one of 

 his visits to Ailsa Craig, "which adds still another to our list of 

 invertebrates. 



(3) I find, on looking through some literature relating to the 

 West of Scotland, that two other and former members of this 

 Society have taken a considerable interest in Ailsa Craig and its 

 natural history, viz., Mr. Robert Gray, who studied its bird life, and 

 Mr. Newton MacCartney, who examined its geological structure, 

 and also in 1864 (according to Dr. Bryce) made a careful investi- 

 gation of its plants, but apparently no systematic study of its 

 invertebrates has hitherto been taken in hand, yet the study of 

 these might prove to be as interesting as the others. 



* At the meeting of the Society on 25th January, 1898, Mr. Anderson 

 Fergusson exhibited the following additional species of Coleoptera from 

 Ailsa Craig, viz., Byrrhus pilula, Linn,, Otlorhynchus blandus, Gyll., and 

 0. rugi/ronS) Gryll. 



