THE society's NOTE-BOOKS. 299 



read before the Zoological Society in December of the same year. 

 In the autumn of 1891 I was staying in Buxton, and there found 

 the same species also fairly abundant in all ages and both sexes in 

 the nests of Formica fusca under stones. When found alive the 

 creature is a deep crimson and very conspicuous upon the white 

 pupae of the ants, a position in which it was frequently met with ; 

 but after being killed and preserved, the colour fades until it 

 arrives at that of the present specimen. It is evidently very near 

 in character to 



*irropoda (lamellosa?) (Fig. 7). — Mr. Michael considers this 

 species as doubtfully the "lamellosa" of Canestrini, but on com- 

 paring the drawing of the latter there is a marked difference, both 

 in the general contour of the creature and in the sculpture of the 

 upper surface of the abdomen, so that I am inclined to doubt that 

 it is so. This species was also found in some of the nests of L. 

 flavus in the neighbourhood of Forth Gwarra in Cornwall. 



Fig. 4 (Uropoda campomoleudina) is found in the same nests as 

 the above. 



Fig. 5 is another Uropoda of doubtful species, and is met with 

 in the nests of F. fusca very frequently attached to the legs of this 

 ant, the presumption in such cases being that such individuals are 

 about seeking another home, and so to form new colonies. 



Including another very fine species of Uropoda — of which I 

 only found two specimens, which I left with my friend Mr. Michael 

 — -and CossinecE, also found at the same time, this makes six 

 distinct and well-marked species of this genus that I met with last 

 autumn in Cornwall, and there remain doubtless many others to 

 reward the pains of a diligent searcher. 



Lselaps equitans (Fig. 10), also found in the nests of T. ccespitum 

 at the rear of Ajaccio, is a very different creature to the Uropoda 

 before named, which are all very slow and inert. It runs about 

 among the ants with the greatest activity, and in the general con- 

 fusion occasioned by the disturbance of the nest is consequently 

 difficult to capture. They might frequently be seen sitting upon 

 the heads of some of the ants, being thus carried about by them 

 in a temporary fashion, and disappearing with them into their sub. 

 terranean galleries. This species is also figured and described in 



