A medium-sized species, somewhat smaller than S. plmnosissima (Bezzi) but a little larger than S. excisa (Kert.). With dirty yellowish hyaline wings, brownish calyptrae and fringes, and black tarsi. Other external characters serving to distinguish the species are: its relatively long antennae with moderately short-plumose arista; the mesopleuron with three long anterodorsal bristles and three posterior ones, and the weak vibrissa-like bristle among the oral setulae.
#S. capsicmum is closely related to S. ficiperda (Bezzi) and atratula (Wlk.). All three species are easily separated on the basis of genitalic characters but it is more difficult to do so from external characters. Capsicmum can usually be separated from ficiperda by the former's larger size, longer antennae, lighter coloured wings and more setulose scutellum; from atratula it can be distinguished by its relatively weaker vibrissa-like bristle, its lighter coloured wings and less pollinose abdomen