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.
Current Population Survey (CPS) Reports. 1  CPS October 2010 Detailed Tables. Source and Accuracy [PDF - 180k] 2  CPS October 2009 Detailed Tables. Source and Accuracy [PDF - 180k] 3  CPS October 2008 Report - School Enrollment in the United States: 2008 (P20-564) [PDF 1M] Source and Accuracy Statement (ACS) [PDF 141k] Detailed Tables.