4. Mutilla volatilis. M. nigra, rude punctata et pubescens; capite abdomineque nitidis, alis fusco-hyalinis.

Male. Length 5-6 lines. Black. Head and thorax very coarsely punctured; head and disk of the thorax punctured; the metathorax opake, with a central abbreviated channel and covered with large shallow punctures; the eyes notched on their inner margin; wings fuscous and iridescent; the tegulæ smooth and shining. Abdomen shining and rather finely punctured; the basal segment narrow and campanulate; the margins of the segments thickly fringed with silvery-white hair; the cheeks, sides of the thorax, and beneath the legs and abdomen with scattered long silvery-white hairs.

Hab. Celebes.

Fam. SCOLIADÆ, Leach.

Gen. SCOLIA, Fabr.

1. Scolia erratica, Smith, Cat. Hym. Ins. pt. iii. p. 88. 10. Scolia verticalis, Burm. Abh. Nat.-Ges. Halle, i. 37. 61.

Hab. India, Sumatra, Celebes.

2. Scolia aurulenta, Smith, Cat. Hym. Ins. pt. iii. p. 102. 80. (nec Fabr.).

Hab. Philippine Islands, Celebes.

3. Scolia fimbriata, Burm. Abh. Nat.-Ges. Halle, i. p. 32. 24.