^8 The Irish Naturalist. January, 



opposite the Gobbins. The genus is a rare one, and the species has not 

 hitherto been recorded from Ireland. Rather curious!)', however, the 

 genus was established by Dr. Johnston in 1845 for another species, 

 S. oniscoides, that was taken in Belfast Lough by Hyndman, and which has 

 not since been satisfactorily recognised in British waters. S. miniaceus 

 is known to occur at Trieste; on the coast of Norway; and in Danish 

 and American waters ; but apparently the only British localities hitherto 

 recorded are the Minch (M'Intosh), and Anglesey (Hornell). A full 

 description and coloured figures of the species may be found in 

 M'Intosh's Monograph of the British Annelids. 



Gregg Wii^son. 

 Queen's College, Belfast. 



CEnistis quadra in Queen's County. 



A female specimen of this scarce moth was sent to the Dublin Museum 

 during August by Mrs. Stack, who had found it near Ballylinan, in 

 Queen's County, only a few miles from the border of Co. Kildare. 

 Probably this species will be found to have a fairly wide range in the 

 south of Ireland. 



Geo. H. Carpenter. 



Irish Freshwater Mites. 



In the Annals and Magazine of Natural History (vol. xii., ser. 7, pp. 505- 

 515) and the Zoologischer Anzeigei' (vol. xxvi., pp. 265-272) for 1903 there 

 are two papers by Mr. J. N. Halbert on Irish Freshwater Mites, with 

 notes and figures of new and rare species. Three genera only are referred 

 to i.e.y Hydrachna, Eylais^ and Arrhenurus. The two first mentioned are 

 large red mites w^hich may be found swimming actively about amongst 

 weeds in stagnant or slowly-flowing water during the summer months ; 

 while the numerous species of Arrhenurus are remarkable for great 

 beauty of structure in the males, and their bright colouring — usually 

 some shade of red, blue, or green. The following species are recorded 

 in these genera : — 



Hydrachna pahidosa, Then, (new to Britain) \H. scutata, Piersig ; H. 

 biscutaia, Sig Thor. ; H. incisa (new species) ; H. Lcegel, Koenike ; H. 

 viaculifera, Piersig ; H. dissimilis (new species) ; H. conjecta, Koenike ; H, 

 globosa, diO. Oq^v \ Eylais hamata, Koenike; E. Koenikei {no^y/ st^q.ciq.s); E. 

 extendens, Muller ; E. symmetrica (new species) ; E. neglecta, Sig Thor. ; 

 E. undulosa, Koenike ; E. soari, Piersig and var. instabilis (new variety) ; 

 E. triarcuata, Piersig ; E. unisiuuata, Croneberg; E. spinipes, Sig Thor ; E. 

 injundibulifera, Koenike and var. stagnalis (new variety) ; E. celtica (new 



species). 



Arrhenurus globator, Muller ; A. sectiriformis, Piersig ; A. cylindratus^ 

 Piersig; A. caudatus, de Geer; A. Ereemani {n^w species) ; A. cuspidi/er, 

 Piersig ; A. Halberti, Piersig ; A. ornatus^ George ; A. maculator, Muller ; 



