Abdominal segment 1with 1pair of setae
near midline, margin with uniform
crenations or with irregular depressions;
caudal setae about 1/5-1/6 of body
length. (sweetpotato or silverleaf whitefly)
Abdominal segment 1without setae near
midline, margin with uniform crenations,
caudal setae about 1/7-1/8 of body
length. (greenhouse whitefly)