192 TRANSACTIONS OF ROYAL SCOTTISH ARBORICULTURAL SOCIETY. 



including specimens of Abies pectinata, A. grandis, A. cephalonica, 

 A. concolor, and A. Lowiana, attracted much attention. 



Thereafter the inspection of some of the other plantations on 

 the estate was proceeded with, including a 29-year-old Japanese 

 larch wood, situated at an elevation of 700 feet with 1540 trees 

 per acre, of an average volume of 920 cubic feet quarter-girth 

 measurement. Several plots which had been measured by the 

 Interim Forestry Authority were also seen in the other woods 

 which were inspected in the course of the day. These included 

 the Sawmill wood at an elevation of 500 feet above sea-level, 

 with 170 spruce trees per acre of an age of 66 years, having an 

 average volume of 61 15 cubic feet quarter-girth under bark 

 measurement; the Heathery wood of Scots pine, with 235 trees 

 to the acre of 76 years of age, at a similar elevation, with 3390 

 cubic feet quarter-girth under bark measurement ; and the 

 Fumery wood of spruce, 54 years of age, at an elevation of 

 350 feet, with 305 stems to the acre, having an average volume 

 of 5965 cubic feet under bark. 



28. Hylecoetus or Lymexylon dermestoides (L.). 



(With Plates.) 

 By Donald C. Fergusson, M.C., B.Sc. 



Some notes and observations on this comparatively rare 

 species of beetle, which I found last summer in considerable 

 numbers at Balquhidder and Dunkeld, may prove interesting 

 and helpful to our foresters. I found the larvae at work in 

 stumps of larch, spruce, Scots pine, and Spanish chestnut, and 

 in logs of birch, beech, and gean. Larvae were also taken 

 from a thick broken branch of birch. There are continental 

 records also on the stumps of silver fir, alder, oak, and Acer. 

 Hylecoehis belongs to the Family Lymexylonidae, a family of 

 saw-horned beetles with some relationship to the click beetles, 

 the insect-eating Cleridae, and the furniture beetles. 



Hylecoetus dermestoides has an elongate body which in fresh 

 specimens shows a yellow pubescence. The head is large and 

 carries a pair of eleven-jointed antennae, and the eyes are 

 prominent. The legs are slender and the seven -jointed 

 abdomen is quite covered by the wing-covers. The males 



