These soon hatch into legless white maggots which after 2 to 5 days of development transform into reddish-brown pupae, about 8 mm (0.3 in) long. Adult flies normally live for 2 to 4 weeks but can hibernate during the winter.
The American Community Survey (ACS) is a 21-page questionnaire generated by the US Department of Commerce under the auspices of the US Census Bureau. Funded by tax dollars, the lengthy questionnaire is mailed to 2% of the US population annually.
Population Reference Bureau. Differences Between the ACS and Decennial Census. (April 2009) While the main function of the U.S. decennial census is to provide counts of people for the purpose of Congressional apportionment, the primary purpose of the ACS is to measure the changing social and economic characteristics of the U.S. population.