Theoneo stridula, new species.—Male: Length, 78 mm; cephalo thorax, wide.35 mm., long.39 mm. In the following table the measurments are give in millimeters:

Cephalothorax short and moderately elevated, sides arcuate, slightly narrowed in fornt, dull grayish-yellow, eyes surronded by narrow black rings; posterior eyes in a slightly recurved line, equal, the median separated from each other by one and one-half times their diameter, and from the lateral by one-half their diameter; anterior eyes in a very slightly procurved line, subcontiguous, the median smaller that the lateral; median ocular area wider behind than in front and wider than long.