Curious Facts in the History of Insects; Including Spiders and Scorpions. / A Complete Collection of the Legends, Superstitions, Beliefs, and Ominous Signs Connected with Insects; Together with Their Uses in Medicine, Art, and as Food; and a Summary of Their Remarkable Injuries and Appearances.

by Frank Cowan

Bostrichidæ—Typographer-beetles.

The Typographer-beetle, Bostrichus typographus, is so called on account of a fancied resemblance between the paths it erodes and letters. This insect bores into the fir, and feeds upon the soft inner bark; and in such vast numbers that 80,000 are sometimes found in a single tree. The ravages of this insect have long been known in Germany under the name of Wurm trökniss—decay caused by worms; and in the old liturgies of that country the animal itself is formally mentioned under its common appellation, The Turk. About the year 1665, this pest was particularly prevalent and caused incalculable mischief. In the beginning of the last century it again showed itself in the Hartz forests; it reappeared in 1757, redoubled its injuries in

1769, and arrived at its height in 1783, when the number of trees destroyed by it in the above-mentioned forests alone was calculated at a million and a half, and the whole number of insects at work at once one hundred and twenty thousand millions. The inhabitants were threatened with a total suspension of the working of their mines, for want of fuel. At this period these Bostrichi, when arrived at their perfect state, migrated in swarms like bees into Suabia and Franconia. At length a succession of cold and moist seasons, between the years 1784 and 1789, very sensibly diminished the numbers of this scourge. In 1790 it again appeared, however, and so late as 1796 there was great reason to fear for the few fir-trees that were left.[191]