224 The Scottish Naturalist. 



with the perfect insect, but are not quite so active. They are 

 brownish-yellow in colour, and not unlike some species of mites 

 often seen in damp situations among decaying vegetable matter. 

 In the first volume of " British Hemiptera" by Messrs. Douglas 

 and Scott, only one locality in Scotland is mentioned for this 

 insect — the banks of the Almond, near Edinburgh, where it was 

 found by Dr. Sharp. I have seen it on the banks of the Nith, 

 near Thornhill, in Dumfries-shire, where Dr. Sharp showed me its 

 habits, as well as beside the Tay and the Dee. Dr. Sharp has 

 also noticed it beside Loch Rannoch. Larvae, pupae, and imagos 

 can be found at any time from April to September, and, I think, 

 probably during the rest of the year. What the insect does 

 when the rivers are "in spate," and the banks of shingle are 

 under water, I do not know. The highest altitude at which 

 I have seen the Dipsocoris is 1,100 feet. 



IDOLOCORIS PALLICOENIS Fieb. 

 Wherever the common foxglove, Digitalis purpurea, grows 

 throughout Scotland this species appears to be found. I have 

 taken it in Kirkcudbrightshire, Perthshire, Aberdeenshire, 

 Inverness-shire, and Ross-shire, and have noticed it at an 

 elevation of i,ioo feet It may be found from May to Octo- 

 ber, and larvae have been noticed at various periods from June 

 to September. This insect seems to be never found on any 

 plant but the Digitalis, though I have some reason to suspect 

 that it may occasionally be found on Mullein ( Verbascum 

 Thapsus). 



.ZETORHINUS BILINEATTJS Fall. 



As the last-mentioned species is attached exclusively to 

 foxgloves, so is this species to aspen ( Populus tremu/a). It 

 was not known as British when " British Hemiptera " was 

 published (1865) ; but about that time the Rev. T. A. 

 Marshall captured three specimens in Leicestershire. I am 

 not aware whether it has been again met with in England ; but 

 in Scotland I have seen it wherever I have looked for it, 

 namely, in the same counties as the last-mentioned species. 

 It is usually abundant where it occurs, and seems to be in the 

 perfect state from the end of June till the beginning of August. 

 It attains an elevation of nearly 1,500 feet above sea-level. 



