3. Nomia elegans ^HNS.

N. nigra; capite thoraceque punctatis subopacis; alis hyalinis; pedibus subferrugineis; abdomine fasciis caeruleo-viridibus pulchriter ornatus.

Female. Length 5 lines. Black: the head closely and finely punctured, the clypeus coarsely so, with a central longitudinal depression, subtuberculate on each side; the labrum and mandibles ferruginous, the latter black at their tips; the scape in front, and the apical joints of the flagellum beneath, yellowish. Thorax: shining, with very delicate shallow punctures; a transverse band of pale pubescence at the apical margin of the scutellum; the base of the metathorax with a deep depression which is crossed by a series of short striae; the sides of the metathorax with a dense pale fulvous pubescence; the legs pale rufo-testaceous, and covered with short glittering pale pubescence; wings subhyaline and iridescent; the nervures testaceous, the costal nervure and the stigma dark fuscous; the apex of the anterior wings slightly clouded. Abdomen smooth and shining, the apical margins of the segments with narrow, vivid blue-green fasciae.

Hab. Malacca.

Most closely resembling the " Nomia crassipes ^HNS [[queen]]," but that insect has the abdomen punctured, and the fasciae broad, particularly at the apex of the abdomen.