 In a test , P. schultzi spiderlings took Drosophila ( " fruit flies " ) almost as often as spiders . P. schultzi retreats from the sudden flights of houseflies found in the open , but sometimes takes flies entangled in a web . : 38 @-@ 39 Out of its web , P. schultzi rarely capture <unk> ( non @-@ web sit @-@ and @-@ wait predators , usually under 13 millimetres long ) in the open , as <unk> often wave their front legs when threatened . : 38 @-@ 39 
