6 The Irish Naturalist, January, 



Wicklow salt-marshes at the time of the spring tides and 

 Odhehius auriculatus was exceedingly abundant in the 

 shallow salt pools with 0. marinus, hicolor, pundatus and 

 viridis. Hdophorus Mulsanti, a species previously only 

 recorded from Dublin and Down was also common in both 

 these counties, as was Agabus conspersus. 



In Waterford I only had a few hours collecting and I 

 worked the marsh immediately south of the county town ; 

 it proved to be very barren as I only succeeded in taking 

 about 30 species. With previous records the total list for 

 this county is now only about 52 species so that there is 

 still plenty of work to be done there. 



In Kilkenny also I only spent one day but with better 

 results. Working a marsh near Glenmore by the River 

 Barrow, I came across the usual species of the halophile 

 groups such as Agabus conspersus, Philhydrus maritimus and 

 Odhebius marinus. This seems a long way inland for these 

 brackish-water species but the river is tidal for some miles 

 above this point and doubtless the marsh occasionally 

 receives a supply of salt water with the high tides. Enochrus 

 hicolor occurred sparingly in a pond in the same neighbour- 

 hood. 



In Carlow only two species taken are worth referring to. 

 Laccophilus interruptus, which was not uncommon in the 

 Barrow near Tinnahinch, belongs to a group of species which 

 prefer slowly moving clear water, and no doubt its dis- 

 tribution has been facilitated by the opening up of canals. 

 Haliplus nomax^'di species recently added to the list, also 

 occurred in the river at the same place. It is a species which 

 is chiefly found in loughs and canals ; in fact in two cases 

 which have come under my observation it was exceedingly 

 common when almost no other Haliplus was to be found. 



I should expect Bidessus minutissimus to occur in the 

 Nore and the Barrow, but I was unable to find a suitable 

 spot in which to search for it near Tinnahinch, even had I 

 done so I doubt if the species would have been about so 

 early in the season. 



Hdophorus affinis var. griseus, occurred in all five 

 counties, and is- fairly common wherever I have collected 

 in Ireland. It had not been recognised previous to 1907, 



