Collembola and Thysanura of the Edinhurgh District. 243 



Genus Entomobrya, Rondani ( ^ Degeeria, Nicolet). 

 Entomobrya albocincta (Tempi.). 



Degeeria cincta, Lubbock's "Monograph." 



This well-marked Spring -tail is fairly common around 

 Edinburgh, under stones on wall-tops, loose bark on old 

 trees, etc. It is not so dependent on moisture as the 

 majority of the order, and is more frequently than not 

 found in dry situations. Found throughout the British 

 Isles (to Ireland and the Shetlands), but apparently dying 

 out on the Continent, being only recorded from Scandinavia, 

 Germany, and Bohemia. It is said to occur, however, in 

 South America (La Plata). 



Local data.— Fairmilehead (Midlothian), July 1896, and again in April 

 1898, a few under stones on wall-top; Comiston (Midlothian), July 1896, 

 several under bark on dead beech ; Rosslyn, Oct. 1896 ; Braid Hills, Nov. 

 1896 and k\)v\\ 1897, a few; Macbiehill (Peeblesshire), Feb. 1896, three; 

 Balerno, June 1897, a few ; Polton, April 1898, a good many under bark 

 on dead silver fir ; Swanston Wood (Pentlands), under bark, common, 

 May 1898 ; Morningside, in greenhouses, common, June ; Lauder, Sept., a 

 few. 



Entomobrya nivalis (L.). 



Degeeria annul ata, Lubbock's "Monograph." 



Very common and widespread, occurring in a variety of 

 situations and at all seasons. By beating the lower branches 

 of trees, furze and other bushes, heather, thistles, ferns, 

 etc., over an umbrella, large numbers can usually be 

 obtained during the spring and summer montlis. It is 

 also of frequent occurrence under bark, etc., such situations 

 being probably those to which it resorts for the purpose of 

 depositing its eggs. When in life typical examples have 

 a greenish-grey appearance. Kanges through Europe from 

 Scandinavia and Finland to Ireland, France, and the Tyrol ; 

 and occurs also in North America. 



Local data. — Torduff Hill and Hillend (Pentlands), and also in Colinton 

 Dell, common under stones, March and April 1896 ; abundant on young 

 spruce trees near Rosslyn, July 1893 ; Mortonhall (Midlothian), July 1896, 

 etc.; Aberlady and Yestcr (E. Lothian), Sept., Uphall, Peutland Hills 

 above Havelaw and Carrie, common on thistles and heather, and near Dun- 



