Abstract
It is appeared that Paederus littoralis and paederus fuscipes are homogeneously distributed throughout the selected area. Population studies of Paederus littoralis and paederus fuscipes were started to determined in March, 2007 and continued until October, 2008. Over 8,000 specimens were collected from different parts of Sind province. Collections were made by hand picking method. In daylight hours, beetles were detected visually among vegetation and collected by hand picking and using an exhauster. Collections were randomly made from various host plants, mainly alfalfa and rice crops including associated weeds. The collection method also included digging to observe for the presence of the beetles in the soil cracks with a digging apparatus. Paederus littoralis was observed on its maximum abundance in shiny hot weathers i.e. May to July whilst Paederus fuscipes was abundant in comparatively less hot weathers i.e. July to September, when the Paederus littoralis was showing a declining tendency. Both larval and adult stages of rove beetles are voracious insect eaters and rely mainly on sucking pest complex. It is therefore; postulated that if, through conservation and manipulation strategies, both species would be encouraged to maintain a good biological control on the alfalfa and rice crops field over the year.
