Collembola and Thysanura of the Edinhurgh District. 227 



Local data. — Wet spots on Bavelaw Moss, at the base of the Pentland 

 Hills (Midlothian), July 1899, common ; damp places on Longniddry Links 

 (East Lothian), August, common ; Ochils (Kinross), Sept. 



Sminthurus bilineatus, Bourl. 

 [Plate VI. Figs. 5-8.] 



As yet we know of only two localities for this tiny form, 

 the principal one being Bavelaw Moss, at foot of the Pentland 

 Hills, where it occurs rather plentifully on heather during the 

 summer months. Dr Schaffer has kindly examined some of 

 our specimens, and confirmed our identification. 



Structurally this species and the preceding one are very 

 closely related, as was indicated by Tullberg (16) many 

 years ago. Apart from size and coloration, the distinctive 

 features are to be found in the spring. The feet and the 

 antennae (distinctly ringed in both forms) are very much 

 alike. In Schaffer's key (13) to the genus, S. hilineatus is 

 placed in the section with 4th antennal segment, " nicht 

 deutlich geringelt," which is certainly misleading. And as 

 regards Tullberfy's divisions '' Setosi " and " Pilosi," we much 

 doubt if any satisfactory line can be drawn between them. 

 At any rate, it seems to us that if novemlineatus be placed in 

 " Setosi," so also should hilineatus. 



Tullberg included Lubbock's S. hourletii in the synonymy 

 of the present species, but we venture to think this was a 

 mistake. As we shall show further on (p. 229), everything 

 points rather to the identity of Lubbock's insect with 

 S. quadrilineatus, Tullb. Abroad >S'. hilineatus is recorded 

 from Scandinavia, Finland, Eussia, France, Germany, and 

 Sardinia. 



Local data. — Bavelaw Moss, near Balerno (Midlothian), June and July, 

 common on heather ; Ochils, north of Milnathort, Sept., a few. 



Sminthurus hortensis, Fitch. 



Smintliurus x>ruinosus, Tullb. (16), and ^. lineatus, Renter (10a). 



[Plate V. Fig. 1 ; Plate VI. Figs. 9-12.] 



In the summer of 1896 this species occurred in considerable 

 numbers in gardens at Morningside Park, Edinburgh, and 



