i86 Apierygota from Yorkshire and Derbyshire. 



Onychiurus ambulans (L. Nic). Under stones. Ecclesall, Dronfield.* 

 Neanura muscorum (Tempi.). Very common under bark, etc. Beauchief^ 

 Ecclesall Woods, Dora.* Cord well,* Bakewell.* 



Family : Entomobryidae. 



[Archisotoma (Proisotoma) besselsi (Pack) Axels. Reported by Bagnall 

 from Saltburn].t 



Folsomia fimetaria (L.) Tullb. Under flower-pots in a garden. Millhouses. 



F . quadrioculata (Tullb). Under bark. Ryecroft Glen.* 

 Jsotoma viridis Bourl, Schott. Plentiful everywhere under stones, bark, 

 etc. Ecclesall Woods, Beauchief, Kettlewell, Dore,* Cordwell,* 

 Barlow,* Bakewell,* etc. 

 var. riparia (Nic). In a garden. Millhouses. 

 I, cinerea (Nic). Tullb. Under bark. Ecclesall Woods, Grassington, 



Bakewell.* Froggat,* Grindleford,* Ryecroft Glen.* 

 I. sensibilis Tullb. Bakewell.* 



/. arborea (L.) Agr. Ecclesall, Totley, * Bakewell,* Grindleford.* 



/. grisescens Schaff. Fulwood, Totley,* Cordwell.* 



Tomocerus minor (Lubb.). Very common under stones, bark, etc. Eccle- 

 sall Woods, Redmires, Hackfall Woods, Grassington, Totley,* 

 Dore,* Cordwell,* Barlow,* Bakewell,* etc. 



T. vulgaris (Tullb.). Less common than the preceding species. Grassing- 

 ton, Totley.* 



Isotomurus palusiris (Miiller). Common in damp places under fallen 

 branches and on the surface of weedy ponds. Redmires, Hack Fall 

 Woods, Millhouses, Dore,* Barlow,* Cordwell,* Ashford,* etc. 

 var. prasina Reut. Ashford.* 



Entomobrya nivalis (L.). Ecclesall Woods, Bakewell,* Ashford.* 



E. albocincta (Tempi.). Frequent under bark, etc. Grassington, Stake- 

 pass, Haddon,* Alport,* Bakewell,* Lathkil,* Hassop.* 



E. nicoleti (Lubb.). Common. Beauchief, Ecclesall Woods, Grassington, 

 Bakewell,* Monsal-dalc,* Lathkil,* Hassop,* Calver,* Dore,* 

 Cordwell.* 



E. muscorum (Tullb.). Cordwell,* Bakewell,* Over Haddon.* 



E. multifasciata (Tullb.). Haddon,* Bakewell,* Barlow,* Dore,* Cordwell* 



E. lanuginosa (Nic). Bakewell.* 



Seira nigromaculata Lubb. Common on window-sills, doorsteps, woodwork 

 in conservatories, etc. Ecclesall, Millhouses, Bakewell.* 



Sinella curviseta Brook. Ashford.* 



Lepidocyrtus lannginosus (Gmel.) Tullb. Very common under bark, 

 stones, etc. Ecclesall Woods, Millhouses, Beauchief, Bakewell,* 

 Barlow,* Dore,* Cordwell.* 



L. cyaneus Tullb. Less common. Ecclesall Woods, Beauchief, Stake- 

 pass, Bakewell,* Haddon.* 



L. curvicollis Bourl. Ecclesall Woods, Bakewell.* 



Orchesella cincta (L.) Lubb. Very common (it was especially plentiful 

 on limestone walls after rain at Alport). Grassington, Stakepass. 

 Hack Fall Woods, Redmires, Ecclesall, Bakewell,* Lathkil,* 

 Alport,* Monsal Dale,* Barlow.* 

 var. vaga (L.). Grassington, Ecclesall Woods, Alport,* Calver.* 



O.rufescens Tullb. {=flavescens (Bourl)). Millhouses, in a garden; 

 Bakewell.* 



Heteromurus nitidus Tempi. Occasionally under stones. Grassington, 

 Bakewell,* Over Haddon.* 



Cyphoderus albinus Nic). Occasionally in ants' nests. Lathkil Dale,* 

 Ashford.* 



Family ; Sminthurid.e. 



Sminihurides aquaticus (Bourl). On the surface of ponds. Heeley ;: 

 Wensley, Hack Fall Wood. 



