BRITISH SPECIES OF PHALANGlDEA OR HAREEST MEN. l8l 



This species is by no means (in my own experience) as abundant 

 as P. opilio in fact, I have hitherto found it rather scarce. It is 

 usually found on walls in autumn. It may be easily distinguished 

 from P. opilio not only by its different habitat but by the distinct- 

 ness of the abdominal angular band of the latter and the absence 

 of any markings on the coxse of the legs and under side of the 

 abdomen, and (in the male) by the great development of the 2nd 

 joint of the falces of P. opilio. 



Mr. Meade comes to the conclusion that the Plialangium opilio 

 of Linnaeus is identical with this species, whereas M. Simon (like 

 Latreille) considers it to have been identical with P. cornutum of 

 that author, and in this I am inclined to agree with M. Simon. 



PHALANGIUM SAXATILE. 



Opilio saxatilis C. L. Koch (1839 and 1848). 



Plialangium saxatile C. L. Koch-Sim. (1879). 

 PL C, fig. 10. 



Length of the female 2J to 3J lines, of the male If to 2 lines. 



This species resembles P. parietinum in general form, but is much 

 smaller. Its colour is of an ashy to yellowish-grey, marked and 

 mottled with white, black and yellowish-brown. The abdomen 

 has the normal angulated dark dorsal band, though in some examples 

 it is very indistinctly marked, and scarcely darker than the rest of the 

 surface ; it is somewhat tapering, coming to a point just above the 

 anal plate, its angles are more numerous than those in P. opilio^ 

 but its general pattern is more like that of P. parietinum, there 

 being generally, more or less strongly marked, a series of transverse 

 curved dark markings, on each side of the median line, each pair 

 of markings meeting in the centre in a largish white spot. These 

 white spots form a central longitudinal line throughout the abdo- 

 men, and sometimes almost run into each other. In some examples, 

 chiefly immature, there is another line of white spots, on each side, 

 on the margin, of the dorsal band. The under side of the 

 abdomen is white, thinly spotted with blackish, and there are also 

 some blackish markings on the coxae of the legs, the legs being 



