SCOTTISH BARK-BEETLES——RECORDS AND OBSERVATIONS 87 
SCOTTISH BARK-BEETLES—RECORDS AND 
OBSERVARIONS: 
By J. W. Munro, D.Sc., Entomologist to the Forestry Commission. 
OF the thirty Bark-beetles recorded as Scottish, there are 
several the presence of which still requires confirmation. In 
most cases the records are those of general collectors 
interested in many groups, and some of them are of com- 
paratively early date. Thus Murray in his well-known 
“Catalogue” records a species, Zomzcus monographus, which 
it is now almost impossible to recognise. Again, it is fairly 
certain that the Hylastes angustatus he records from Berwick 
and Glasgow is Aylastes opacus, as according to Canon 
Fowler the A. angustatus of Stephen is HY. opacus, Er., and 
HT, angustatus, Herbst., has so far never been recorded from 
Scotland. Even in England it is rare, and indeed has been 
confused until recently with 47. attenwatus, Er., a species only 
recently recognised as British. 
Other records are solitary, and often refer to the taking of 
a single specimen, as Dr Sharp’s record of 7. uzgritus, L., 
from Moray in 1871, and Dr Joy’s record of Puztyogenes 
trepanatus, Nord., at Blair Atholl in 1903. So, too, our finest 
Bark-beetle, Scolytus Ratzeburgt, Janson, has not been taken, 
so far as published records show, since 1870 or 1871, and yet 
Rannoch, where it occurred, has since been well studied. 
On the other hand, many of the older and doubtful 
records have been confirmed during the past few years. In 
July 1919 I found P2tyogenes chalcographus, L., breeding in 
numbers near Dunkeld. Cryphalus abietis, Ratz., is now 
known to be widely distributed. ylastes cunicularius, Er., 
also is fairly widely distributed, and has been taken by me 
during the past two years in Kincardineshire, Perthshire, and 
Argyllshire, in all cases in numbers in its breeding-grounds 
in the stumps and roots of spruce and Sitka spruce. Dvyo- 
cetes autographus, Ratz., 1 have also found at Dupplin and 
Dunkeld, both new localities for it. JZyelophilus minor, Hart. 
