A Northern Virginia businessman this week announced his candidacy for a newly created House of Delegates seats in Fairfax County.

Republican Buck Morton is the first candidate to put his name in the race to represent the new three-member 49th District covering the northeast corner of Fairfax County.

Morton's announcement follows closely on the heels of threats by some state legislators and public interest groups to challenge the constitutionality of the new statehouse map drawn up by the General Assembly earlier this month. Opponents charge that the reapportionment plan does not provide equal political representation because population differences between the districts vary as much as 26 percent.

The 49th seat is one of two gaines by Northern Virginia and is the third seat in the 49th district. Under the new plan, seats currently held by delegates Vincent F. Callahan and Martin H. Perper also would be included in this district.

It is Morton's first bid at public office. Currently, the 50-year-old Morton serves on the board of the McLean Citizen's Association and the board of directors of the Fairfax County Chamber of Commerce.

The Republican primary will be held Sept. 8 and the general election Nov. 3.