152 THE ENTOMOLOGIST. 



The genital segments of these two species are figured by 

 Horvath in the work quoted above. 



In my own collection I have, besides British examples, a good 

 series from the Seine, near Eouen, collected by my kind friend 

 M. Henri Gadeau de Kerville. 



I have never had the good fortune to see this remarkable bug 

 alive, but Westwood states that it " swims very fast, using its 

 hind legs chiefly, but crawls very slowly, using its four fore feet." 

 Gadeau de Kerville has captured it in great numbers in the 

 Seine, and notes its extreme agility in the water. He has 

 observed it feeding upon the larvae of the coleopteron Hamonia, 

 and believes that it also preys upon the mollusks Vivipara vivi- 

 para [Paludma] and Bythinia tentaculata. The last named 

 species deposits its transparent gelatinous ova upon the back of 

 Aphelocheirus, and this habit led at first to the supposition that 

 Aphelocheirus carries its ova in the same way as is known to 

 occur in Zaitha and Deinostoma.* 



J. L. Brown found it in great numbers years ago at Costessey t 

 from June to September among a broad-leaved species of Pota- 

 mogeton in a running stream. 



The nymphs in the ultimate instar differ from the practically 

 apterous adults by the non-spinosely produced connexiva, and 

 by the unsegmented tarsi, the posterior pair being very long. 



(To be continued.) 



A CATALOGUE OF THE LEPIDOPTERA OF IRELAND. 

 By W. F. de Vismes Kane, M.A., M.R.I.A., F.E.S. 



(Continued from p. 127.) 



MicROPTEEYx SEMiPURPURKLLA, St. — Wicklow Mts. ; Clonbrock, 

 Galway {B. E. D.). 



M. UNIMACULELLA, Zett.—'Wicklow Mts. 



M. SPARMANNELLA, Bosc. — Euniskilleu (P.). 



M. suBPURPURELLA, ilai^.— Wlcklow Mts. ; Clonbrock, Galway 

 (B. E.D.). 



Nemophora swammerdammella, L. — Wicklow Mts. ; Clonbrock, 

 Galway {B. E. D.) ; Sligo (B.). 



N. schwarziella, Zell. — Enniskillen (P.). ; do. ; L. Bray, 

 Co. Wicklow; Belfast (IF.). 



(N. metaxella, Hb. — Belfast. Doubtful record.) 



* Gadeau de Kerville, 1887, ' Le Naturaliste,' pp. 199-201. See also 

 Bull. Soc. Eut. France, 1884, pp. 83, 96, 112, and 128 (various communica- 

 tions by de Kerville and Belle voye). 



I See E. M. M. xi. pp. 16, 92, and 117. 



