igS The Irish Naturalist. September, 



Thripsidae, with its wonderful series of illustrations, published 

 in the British Museum Catalogue of Homoptera, was a con- 

 tribution to entomological literature of very special merit, 

 while his memoir on the " Affinities of the Aphaniptera 

 among Insects" may be referred to as one of the most important 

 of his later writings. 



Coming to reside in Dublin in the early fifties, he took an 

 active part in the work of the Dublin University Zoological and 

 Botanical Association, which had been founded under the 

 auspices of Robert Ball, W. H. Harvey, and George AUman ; 

 he also very materially assisted in the editing and publishing 

 of the Nattcral History Review until it was transferred to 

 lyondon. 



Towards the close of 1861 his state of health led him to try 

 the effect of a change of climate, and he went to I,ucca to 

 reside with a near relative. The immediate result was good ; 

 and his cousin taking up her permanent abode in a villa, the 

 property of her husband, on the slopes of San Concordia, 

 about five miles from Lucca, Halida}^ occupied portion of the 

 villa, bringing out his collection of books and insects. From 

 thence he made many excursions, visiting the region of the 

 Carrara range and the Appenines above Pistoja ; at other 

 times the woods and shores of Viaregio and Spezia, the latter 

 not then a fortress ; sometimes to Sicily, and over its fertile 

 plains and up its wondrous mountain. Collections of Diptera 

 and Hymenoptera were made for future work and for exchange. 



In 1867 he joined very cordially with Professors Targioni- 

 Tozetti and Stefanelli in founding the Italian Entomological 

 Society, and he commenced the investigation of the subject 

 of insects injurious to the Olive. A. H. Haliday died on the 

 12th July, 1870, after a short illness. I take the liberty in 

 bringing this notice to a close, of quoting from an apprecia- 

 tion of him by Baron Osten Sacken, which is shortly to be 

 published. It is the expression of the opinion of one in every 

 way capable of judging, and is, therefore, of more value than 

 any words of mine could have about my life-long friend. 

 '^ He had an intense desire for completeness and perfection, 

 which was quite disinterested, because shy of publicity ; he 

 had an intense desire of being useful, by imparting useful 

 knowledge to others, unmindful of the amount of work it 

 involved." 



