A Handbook of Hardwoods . Compiled by the Forest Products Research Laboratory, Department of Scientific and Industrial Research. H. M. Stationery Office, London, 1956 (order from British Information Services, 20 Rockefeller Plaza, New York 20). 269 pp. $3.15.

Science ◽  
1956 ◽  
Vol 124 (3233) ◽  
pp. 1212-1212
1937 ◽  
Vol 28 (1) ◽  
pp. 1-3
Author(s):  
Ronald C. Fisher

Pin-hole borer damage to timber, caused by beetles of the families Scolytidae and Platypodidae, is associated chiefly with recently felled logs and occasionally with standing trees which are in an unhealthy condition. Information collected within recent years by the Forest Products Research Laboratory, Department of Scientific and Industrial Research, suggests that attack in standing trees may, however, be of more frequent occurrence than has been commonly supposed. In this connection, an interesting case of damage to English ash by the Platypodid beetle, Platypus cylindrus, F., is worthy of record.


1961 ◽  
Vol 93 (6) ◽  
pp. 428-430
Author(s):  
John B. Simeone

In a survey of wood-feeding Anobiidae occurring in the Northeastern United States and adjacent Canada, a species of Ptilinus was found which the author believed to be new and for which the trivial name friendi was proposed (Simeone, 1960). However, having had the opportunity during the summer of 1960 to examine and collect European species at the Forest Products Research Laboratory, Princes Risborough, England and at der Forstliche Bundes-versuchsanstalt Mariabrunn in Schönbrunn, Vienna, Austria, the author now believes his specimens to have been introductions of the common species, Ptilinus pectinicornis L. In view of rhe economic importance of this species in other parts of the world, it seems advisable to describe in some detail the adult male and female as well as to compare some of the characteristics whereby the insect can be distinguished from closely allied species.


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