* Arabica marks weakest quarter since 2000
* New CME cocoa contract sees 168 lots trade
* New ICE cocoa contract trades for first time on day two (Updates prices; adds trade comment, NEW YORK dateline, second byline)
By Marcy Nicholson and David Brough
NEW YORK/LONDON, March 31 (Reuters) - Raw sugar on ICE inched down to its lowest in more than six years on Tuesday as abundant supplies continued to weigh on prices, while cocoa slipped to eight-week lows on favorable weather before the start of West African mid crops.
Activity in the second day of trading of two new euro-based cocoa contracts was again quiet.
Arabica coffee futures corrected higher after a 4 percent fall on chart-based pressure in the prior session, but closed the first quarter down 20 percent, its weakest since the fourth quarter of 2000.
Raw sugar futures on ICE fell to 11.91 cents a lb in early trading, the lowest level since January 2009, and later settled down 0.06 cent, or 0.5 percent, at 11.93 cents per lb.
Nick Penney, a senior trader with Sucden Financial, said a firmer dollar also weighed on sugar futures prices.
"The macro picture does not favor commodities in general as a strong dollar piles on export pressure and encourages production," Penney said.
May white sugar closed down $2.10, or 0.6 percent, at $355.40 a tonne.
Cocoa dealers said favorable weather in West African growing regions augured well for mid crops, capping prices.
New York May cocoa closed up $4, or 0.1 percent, at $2,699 a tonne in volume of 6,770 lots.
London May cocoa ended down 2 pounds, or 0.1 percent, at 1,901 pounds a tonne.
In the new CME and ICE euro-based cocoa contracts, which launched on Monday, trade of the first 168 lots opened in the ICE contract <0#ECC:> on Tuesday after no trades the previous day.
In the new CME contract <0#1CCP:>, 110 lots traded on Tuesday, after trading volumes of 240 lots on Monday.
"CME has to maintain that (Monday's) volume. It's struggling already," one London-based cocoa futures dealer said.
May arabica closed up 0.55 cent, or 0.4 percent, at $1.3290 per lb, but fell for the seventh straight month.
May robusta coffee settled up $7, or 0.4 percent, at $1,729 a tonne. (Editing by William Hardy, Mark Potter and Dan Grebler)