52 
HALIDAY AND LOEW 
as follows : “ In the course of this summer, your letter, bearing date 
the 16th of March previous, came to my hands, along with other 
matters sent me, through London, from the Stettin Society. It 
gratified me much to receive this mark of consideration from such 
a distinguished naturalist, and one I look up to as the first living 
authority on all things concerning that order [Diptera] to the study 
of which I am most inclined, as far as my materials extend. I am 
glad to find that my little contribution of specimens has been 
received with such friendly readiness, as I ventured to expect from 
your liberal temper ; and I return you my best thanks for the very 
interesting and useful series of specimens, which you have had the 
goodness to transmit to me, containing many new and quite (to 
me) unknown species, and what I value not less, the authentic 
determination of important species.” It appears from this passage 
that it was Haliday who opened the correspondence by sending to 
Loew a collection of specimens, that Loew had answered him in 
March, 1847, and that the first letter of VerraH’s collection, dated 
from Clifden, was the second letter of the correspondence. 
The rest of the long letter from Clifden shows Haliday’s earnest 
desire to develop in Ireland an interest in scientific entomology, 
and to establish the necessary conformity between it and the con¬ 
tinental literature in regard to terminology and nomenclature (in¬ 
cluding synonymy). To the letter are added manuscript lists of 
the Irish species of Hydromyzidae , Dolichopodidae, and of the 
genera Scatopse and Tipula ; a list of supposed synonymies of Irish 
Diptera; a paragraph on OrphnepMla, with tracings of an, at that 
time, unpublished plate with twenty-four figures; another paragraph 
on Clunio marinus , with tracings of the figures which were pub¬ 
lished later (1855) in the Naturcd History Review, and many 
incidental remarks and notices on genera and species of Diptera. 
A box with insects accompanied the letter, the catalogue of which 
is also crowded with synonymies and notices. One of these con¬ 
tains a very remarkable reference to the new subdivision of the 
JPsychodidae, introduced by Haliday in Curtis’s “ Brit. Entom. 
Diptera,” plate 745 (dated June 1, 1839) ; I shall refer to it in my 
Chapter, “ Loew as a Dipterologist.” 
This letter of Haliday’s with its annexes shows an immense 
