5. Mutilla exilis ^HNS.

M. nigra et punctata; abdomine laevigata, nitido; alis subhyalinis; facie et metathorace pube argentata vestitis.

Male. Length 6 1 / 2 lines. Black; head and thorax strongly punctured; the eyes emarginate, the face with glittering silvery-white pubescence, the cheek thinly sprinkled with silvery hairs; the palpi testaceous. Thorax: the metathorax densely clothed with silvery pubescence, beneath, at the sides, and also the legs with scattered silvery hairs, the calcaria white; the tegulae shining; the wings subhyaline with the nervures dark fuscous. Abdomen shining black, smooth, and very delicately and sparingly punctured, the apical margins of the segments ery thinly fringed with glittering silvery hairs. Hab. Aru.