Cryptocarenus diadematus

Male similar to female in color and proportions, but smaller (1.4 mm long). Frons convex, with a low, longitudinal median elevation above upper level of eyes. Surface coarsely granulate-punctate, becoming longitudinally rugose above eyes. Anterior margin of pronotum with 14–16 teeth, approximately equal in size. Posterior and lateral areas of pronotum smooth, shining. Pronotal rugosities form a distinct triangular pattern. Abundant, erect, hairlike setae interspersed with asperities on anterior area. Elytra 1.7 times as long as wide, 1.6 times as long as pronotum. Vestiture consists of sparse, erect, spatulate interstrial setae. Setae longer and more abundant on declivity, especially on odd-numbered interstriae.

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