In the United States alone 30 kinds of the Botfly species have been found. To name a few are the Mouse Bot Fly, Horse Botfly, and the Human Botfly. The bot fly will hijack a mosquito to inject the host with the eggs. It latches onto several species which allow the larvae to enter the skin of the host.
On 29 October 1929, the US stock market crashed. The day became forever after known as Black Tuesday. The so-called Great Crash is known by a a variety of monikers including the Wall Street Crash of 1929 and the Stock Market Crash of 1929.
The 1930 Wall Street crash would propel the market downward, and the trend would continue until the market bottomed out in 1932. As the stock market and the economy fed on the problems of the other, the fall of 1930 saw the unavoidable signs of depression take hold of the US, almost a full year after the initial crash. The 1929 and 1930 Wall Street crash served to weaken investor confidence, as well as caused a drop in trading volume.