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Table 1 Sites, dates and sampling methods of adult mosquitoes used in study of genetic and morphometric differentiation of Anopheles arabiensis in Sudan 1998–2001 and 2004-2006

From: A genotypically distinct, melanic variant of Anopheles arabiensi s in Sudan is associated with arid environments

Location

Position

Malaria endemicity

Rainy season

Rain precipitate

Sampling date

Sampling methods

Khartoum

15° 3'– 15° 45' N 32° 15' - 32° 45' E

hypo-meso endemic

July -September

240 mm

Nov 1998 - Oct 1999, July 2001, Dec 2004 – Nov 2006

Pyrethrum spray collection, Landing collection, Active search

Gedaref

12° 54’N 35° 08' E

hyper-endemic

June -October

815 mm

Dec 2004 and Nov 2006

Pyrethrum spray collection, Landing collection, Active search

Kassala

15° 22 N' 36° 27' E

hyper-endemic

June -October

400 mm

March 2005 and April 2006

Pyrethrum spray collection, Landing collection, Active search

North

19 ° 16 N' 0° 27' E

free zones of malaria

September

1 mm

Feb 2006

Pyrethrum spray collection, Landing collection, Active search