As in the Anthribidae, the labrum appears as a separate segment to the clypeus, and the maxillary palps are long and projecting.

[2] Nemonychidae are historically divided into three subfamilies: Nemonychinae of the palearctic region with the single genus Nemonyx and an unusual host, the angiosperm Delphinium.

Recent phylogenetic research indicates that the Cimberidinae are sister to all of the remaining Curculionoidea, and it has been proposed to elevate the group to family rank.

[5] When mature, the larvae will drop to the ground from the male cones or flowers they resided in to pupate in the soil less than five centimeters from the surface.

[6] There exists a fairly extensive fossil record of Nemonychidae reaching from the upper Jurassic to tertiary amber.