Collembola and Thysanura of the Edinlurgh District. 257 



Pentland Hills, and had, we presume, been flooded out of 

 the moss by recent heavy rain. 



T. mirahilis is a minute pale blue-grey species, the sole 

 representative, of a genus characterised by, among other 

 things, the very rudimentary nature of the spring. Tull- 

 berg's figures of it are reproduced in Brook's paper. 



Local data. — Torduff Hill, Pentlands, May 1899, a good many floating on 

 surface of stagnant water in a deepish ditch. 



Genus Anurophorus, Nicolet. 



Anurophorus laricis, Nic. 



Lipura corticina, Lubbock's ' * Monograph. " 



Locally common, but it is a species we have not met with 

 very often here. It seems less dependent on moisture than 

 many other Spring-tails ; nevertheless we have found it in 

 wet Sphagnum in a bog. Distributed throughout Europe, 

 and recorded from Siberia. 



Local data. — Duchray (Stirlingshire), April 1896, common under bark on 

 dead but standing larch ; Dreghorn, near Edinburgh, Feb. 1897, common 

 on dead larch branches lying on the ground ; Swanston Wood, March, a few 

 under bark ; Dalhousie, March 1898, on dead branches ; near Kinross, May, 

 abundant under top stones of a wall close to Loch Leven ; Bavelaw Bog, 

 March 1899, two small examples out of wet Sphagnum; near Kirknewton, 

 May, common on dry cow-dung. 



Genus Lipura, Burmeister ( = Aphorura, A. D. MacG.). 



Lipura armata, Tullb. 



Lipura armata + ? L. Burmeisteri, Lubbock's "Monograph." 



Widely distributed, and common under boards, stones, 

 flower-pots, etc., lying on damp earth or grass. Only to be 

 distinguished from the next form, so far as we can make out, 

 by the number of prominences in the post-antennal organ 

 (say twenty-five to thirty against twelve to fourteen), and 

 the number of pseudocelli (three instead of two) at the base 

 of each antenna. 



Judging by the description and figures, Lubbock's Z. 

 hurmeisteri, found under boards in England, was probably 



