FARMINGTON, Conn., July 31 /PRNewswire-FirstCall/ -- Darwin Professional Underwriters, Inc. (Darwin) (NYSE: DR) today announced that it expects to release its second quarter 2008 financial results before the markets open on Friday, August 8, 2008. Earnings will be distributed via Press Release only. There will be no conference call to discuss the company's second quarter 2008 financial results given the pending transaction with Allied World Assurance Company Holdings, Ltd.

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About Darwin Professional Underwriters, Inc.

Darwin is a specialty insurance group based in Farmington, Connecticut. The company is focused on the professional liability insurance market and underwrites directors and officers ('D&O') liability for public and private companies, errors and omissions ('E&O') liability insurance, medical malpractice liability insurance, and other specialty coverage. Darwin member companies include Darwin Professional Underwriters, Inc., Darwin National Assurance Company (DNA), and Darwin Select Insurance Company (Darwin Select). DNA and Darwin Select have earned a financial strength rating of 'A- (Excellent)' from A.M. Best Company. Darwin is traded on the New York Stock Exchange under the ticker symbol, 'DR.'

For more information about Darwin, visit www.darwinpro.com.

SOURCE Darwin Professional Underwriters, Inc.