Of the same form and sculpture as the preceding (Z. salcatus), somewhat lighter in color. Beak more slender (a sexual character?), less deeply sulcate, with two or three long hairs each side near the base. Prothorax with more numerous erect hairs. Elytra with coarsely punctured shallow striae, interspaces wide, flat, each with a series of long, pale, erect hairs proceeding from scarcely perceptible punctures.

Length 1.8 mm.; 0.07 inch.