SCOLYTIDS AND OTHER COLEOPTERA 305 



Hylastinus obsc/ints, Marsh, and PJilojoplithonts rhodo- 

 dactylHS, Marsh, are common in dead stems and branches 

 of broom, the same plant usually yielding both species. 

 On the south side of Blackford Hill and on the Braid Hills 

 I have taken both plentifully in broom (October 1914, etc.) ; 

 also atvKirknewton, February 1914; Lothianburn, April 1916; 

 Whitehill, September 1916 (all in the county of Edinburgh); 

 Milnathort (Kinross), April 191 5; Ormiston and Tranent 

 (Haddington), April and June 1916 respectively ; Kinneil Mill 

 (Linlithgow), March 1914 ; Eddleston (Peebles), November 

 1916. H. obscurus occurred alone at Blackshiels (Edinburgh), 

 August 1916; Illieston (Linlithgow), November 191 5; and 

 Cardenden (Fife), April 191 5. In March last I got both 

 species in whin on Braid Hills, and H. obscurus in the same 

 plant at Pentland. 



The first recorded Scottish specimen of Cryphalus nbictis, 

 Ratz., was beaten by Prof Hudson Beare off a shrub at 

 Gorebridge (Edinburgh) in May 1905, and on Arniston 

 Estate, in the same neighbourhood, I found the flight-holes 

 of the species in dead branches of tall silver firs last September 

 — only one beetle was then obtained, but on i8th November 

 about fifty were got in a few pieces of similarly bored 

 branches from a silver fir at Bush, near Roslin. Mr Munro 

 kindly gave me specimens from Eddleston (Tweed area), 

 where I have recently observed its borings myself This is 

 an excellent example of how a species may evade detection 

 till a knowledge of its habits is made the basis of search 

 for it. 



The not less interesting spruce-inhabiting species, 

 DryoccEtes autographus, Ratz., has been met with in the 

 following localities, namely, near Kirknewton, under the 

 bark of spruce stumps in April 1903 (one on 2nd and a 

 colony on 14th), and April 1905 (fifteen), and of a fallen 

 tree of the same kind in Jul\- last ; Harelaw ravine, near 

 Balerno, abundant in blown-down spruces, February and 

 May 1916 (I owe my knowledge of this colony to the 

 kindness of Mr Munro, by whom it was discovered — see 

 a7ite, p. 95) ; Blairadam, Kinross-shire, one caught on the 

 wing in a fir wood, 3rd June 1909 ; and Gifford, Haddington- 



