230 Proceedings of the Royal Physical Society. 



Schaffer tells us the mucro is sometimes faintly toothed in 

 quadrilineatus. 



The only other Scottish locality known to us for aS'. 

 quadrilineatus is Blair AthoU in Perthshire, where the sooty 

 variety was found by Evans in September last. On the 

 Continent it is recorded from Sweden, Finland, and Germany. 



Local data. — Lawhead farm, near Midcalder (Midlothian), eight specimens 

 of the typical form, about thirty of var. ochrojyus, and a few of var. flavescens, 

 June and July 1899. 



Sminthurus violaceus, Renter, 



[Plate V. Fig. 2 ; Plate VII. Figs. 1-4.] 



A few specimens of this minute species, which has hitherto 

 been known only from Finland, whence it was described by 

 Eeuter (105), and figured by Schott (15), were obtained in 

 August 1896, in a garden at Aberlady by means of a white 

 cloth spread on the ground in order to attract various kinds 

 of small insects, and render them at same time more easily 

 seen. It is a beautiful little Spring-tail (only about '75 mm. 

 in length), to be recognised by its rotund body, comparatively 

 short antennse with fourth segment not ringed, and divergent 

 dentes which are inserted laterally on the manubrium, not 

 touching each other at their bases. The mucrones in our 

 specimens are denticulate to the tip. Schott's figure shows 

 the teeth ceasing at about half the length of the mucro ; 

 but even if this difterence between Scottish and Finnish 

 specimens be confirmed, it cannot be reckoned as of specific 

 value. Neither can the reduction to a small vestige, in our 

 specimens, of the distinct tooth figured by Schott on the 

 upper claw of the front foot. 



[Since the above was written we have found this species 

 in some numbers at Morningside, Edinburgh. Most of the 

 specimens from this second locality have the upper part of 

 the head, and a few the forepart of the body as well, deeply 

 tinted with yellow.] 



Local data.— In garden at Aberlady (E. Lothian), 30th Aug. 1896, several 

 obtained, but unfortunately only two preserved ; Morningside Park, Edin- 

 burgh, July 1899, fairly common on garden foot-path. 



