A study on Phlebotomus species, the vectors of leishmaniasis in Gassim, Saudi Arabia.

A total 935 adult sandflies were collected and identified from Buraydah, Gassim region. Phlebotomus papatasi represented 79.6% of the total population whereas P. sergenti represented 20.4% throughout two successive years (October 1990--September 1992). Apart from May, female sandflies outnumbered the males in both species. The seasonal incidence of both P. papatasi and P. sergenti seemed to be highly affected by climatic factors prevailed in the study area.