Female. Length 8-9 mm. Body shining black clothed with whitish hairs; the following parts rufous; palpi, middle of mandibles usually, labrum, antennae except the two basal segments above (in some specimens the two basal segments are entirely dark), legs beyond trochanters, and abdomen beyond the basal plates. Segments 2-5 of the abdomen above with dark transverse bands across the middle most pronounced on basal segments and decreasing apically. Wings yellowish with stigma and veins, except costa, brownish.