Apterygola from Yorkshire and Derbyshire. 187 



Sminthurides malmgreni (Tullb.). var. elegantida (Reut). On the surface 

 of ponds. Hack Fall Wood, Haddon-meadows,* Lathkil Dale.* 



Bourletiella lutea (Lubb.). Common on grass and flowering plants. Ays- 

 garth, Grassington, Dore,* Cordwell,* Lathkil Dale. 



B. sulphurea (Koch) Born. On plants. Aysgarth, Grassington, Mill- 

 houses (garden), Dore,* Cordwell,* Calver,* Lathkil,* Bakewell.* 

 var. pallipes (Bourl.). Frequently with the type form. Millhouses 

 (garden), Cordwell* (on oats, etc.), Lathkil,* Monsal Dale.* 



B. hortensis (Fitch.). On plants. Millhouses (garden). 



B. insignis (Reut.). On plants. Lathkil,* Haddon.* 



Sminthurus viridis (L.) I^ubb. Common on grass. Grassington, Cord- 

 well,* Grindleford,* Lathkil,* Monsal Dale,* Haddon Meadows.* 



Dicyrtoma fiisca (Luc. Lubb.). Under fallen trunks. Very plentiful in 

 Winter. Ecclesall Woods. Totley,* Cordwell,* Haddon Meadows* 



Dicyrtomina minuta (O. Fabr.). Under fallen branches. Totley,* Cord- 

 well,* Bakewell,* Ashford,* Haddon,* Lathkil Dale.* 

 var. ornata (Lubb.). Rather more plentiful than the type, especially 

 so in winter. Ecclesall Woods, Haddon,* Cordwell,* Totley.* 



Order 2 : THYSANURA. 



Family : Campodeadae. 



Campodea staphylintis Westw. Frequent and widespread, under stones. 



It appears to be scarce in limestone districts. Ecclesall Woods, 



Redmires, Fulwood, etc., Hassop,* Bakewell.* 



Family : Machilidae. 



Machilis polypoda (L.). Fairly common under pieces of limestone and 



about limestone walls. Hassop,* Bakewell.* 

 Petrobiiis maritimits Leach. Common on the rocks at Robin Hood's 

 Bay. Specimens of this species were kindly supplied by Prof. 

 Denny. 



Family ; Lepismidae. 



Lepisma saccharina L. Occurs in houses, Sheffield. It appears to be 

 lesson common than formerly. 



Selection of Literature dealing with British Apterygota. 



Bagnall, R. S. — ' Short notes on some new and rare British CoUembola ' 



in Trans. Nat. Hist. Soc. of Northumberland and Durham, HL, 



1910. 

 Brook, G. — ' Notes on some little-known CoUembola, etc' in Journ, 



Linn. Soc, XVII., 1884. 

 Carr, J. W., in ' Invertebrate Fauna of Nottinghamshire,' 1916. 

 Carpenter, G. H. — Various papers in Irish Naturalist for 1897, 1907, 



1908, 1911, 1913, etc. 

 Carpenter, G. H. — Clare Island Survey, ' Apterygota ' in Proc. Roy. 



Irish Acad., XXXI., 191 3. 

 Carpenter, G. H. and Evans, W. — ' CoUembola and Thysanura of the 



Edinburgh District ' in Proc. Roy. Phys. Soc. Edin., XIV., 1899. 

 Carpenter, G. H. and Evans, W. — Some Springtails new to the British 



Fauna ' in Proc. Roy. Phys. Soc. Edin., XV., 1904. 

 Collinge, W. E., and Shoebotham, J. W. — 'The Apterygota of Hert- 

 fordshire,' in Journ. Econ. Biol. V., 1910. 

 Evans, W. — ' Records of CoUembola and Thysanura from the Clyde 



Area' in Ann. Scot. Nat. Hist., 1901. 

 Lubbock, J. — ' Notes on Thysanura ' in Trans. Linn. Soc, Vol. XXIII. 



(1862), XXVI. (1868), XXVIII. (1870) ; ' Monograph of the 



CoUembola and Thysanura,' Ray Soc, 1873. 

 Templeton, R. — ' Irish Thysanura' in Trans. Eni. Soc, Vol. I., 1834. 



1918 June 1. 



