TETRAMORIUM. 173 



Isle of Wight : Sandown 14 , Shanklin and Luccombe Chines 16 , 

 the Undercliff 17 , and Ventnor 20 (F. Smith] ; Landslip (Fowler} ; 

 Blackgang Chine (Donisthorpe) . 



Hants, S. : Bournemouth (F. Smith) 22 ; Hayling Island 

 (Saunders)** ; New Forest (DonistJwrpe) 66 ; Hants, N. : Fleet 

 (E. A. Butler}. 



Sussex, E. : Hastings District 52 ; Camber Sands (Donisthorpe) ; 

 Sussex, W. : Arundel Park (F. Smith Coll.). 



Kent, E. : Folkestone (F. Smith) 1 * ; Deal (F. Smith) 20 ; Dover 

 (F. Smith) 20 ; Sheppey (Champion) ; Throwley 58 and Hunting- 

 field (Chitty) ; Kent, W. : Darenth (Curtis) 1 * ; Plumstead Wood 

 (F. Smith) 2 *. 



Surrey : Shirley (F. Smith) 2 * ; Chobham (Saunders)* 9 . 



Essex, S. : Southend (Curtis) 1 * ; Shoeburyness (F. Smith) 16 ; 

 Essex, N. : Walton-on-the-Naze (Harwood). 



Middlesex : Hampstead Heath (Fan -en- White)* 2 . 



Berks : Wellington College (Barnes) 5 * ; Tubney (Donisthorpe) 66 . 



Suffolk, E. : Lowestoft (F. Smith) 2 * ; Pakefield (Morice)* 7 ; 

 Dunwich (Fan -en- White)* 2 ; Ipswich (Morley)* 1 ; Herringfleet 

 (Bedwell) ; Suffolk, W. : Brandon District (Perkins}* 1 ; Knettish 

 Hall Heath (Morley). 



Cambridgeshire : Mildenhall (D. Sharp). 



Glamorgan : Horton, Gower (Hallett). 



Carmarthen : Llanstephan (E. A. Butler). 



Carnarvon : Abersoch (Nevinson). 



Pembrokeshire: Tenby (Donisthorpe) ; St. Davids (Allen. 



Denbigh : Deganwy District (W. Gardner). 



Haddington : Bass Rock (Evans) 68 . 



Clyde Isles : Ailsa Craig (Bagnall). 



Tetramorium caespitum prefers to nest in open country and 

 occurs in sandy places, on banks, in fields, etc. Schenck 11 records 

 it in woods on the Continent, but Forel 27 states this is seldom the 

 case, and I have never found it in woods in Britain. It occurs in 

 the New Forest, but is there confined to open sandy heaths, where 

 only a few scattered fir trees are present. In Switzerland, accord- 

 ing to Forel, T. caespitum ranges as high as the region of the fir 

 trees 27 , and I found it, in October, 1912, on Les Agittes, nesting 

 between the interstices of a wall of rock. 



Its nests are often deep in the ground, and are frequently 

 situated under stones, but are sometimes covered with a dome of 

 earth of considerable proportions, and small secondary domes may 

 also be present. Long narrow galleries extend, just beneath the 

 surface, right round these domes, and very small holes, often 

 closed with grains of earth, connect these galleries with the open 

 air. 



Mayr 18 says it not infrequently lives in houses on the Continent. 



