Male. Length 7 lines.-Black: covered with a fine, thin, changeable, silky pile; anterior margin of the clypeus rounded; the palpi pale testaceous; antennae three-fourths of the length of the body. Thorax: the disk slightly pubescent; the metathorax shining; wings fusco-hyaline; the tarsi rufo-testaceous. Abdomen elongate and cylindrical; the apical margin of the first segment constricted; the node incrassate, subquadrate, rounded above.
Hab. Brazil (Villa Nova).
