Species Hymenorus farri

Hymenorus farri Campbell

4.5-5.5 mm (1)

Hymenorus farri (Figs. 1, 2) is unique among its congeners in having dense median patches of fine setae and punctures on basal abdominal sternites in males (Fig. 3). Other species have punctures more evenly distributed over these surfaces. This character and the combination of the relatively small and widely separated eyes, robust yellowish legs and tarsi, and finely, densely punctate pronotum with short, fine, erect pubescence, allow its separation from other species of similar size (4.5-5.5 mm). The apical two abdominal sternites are very dark brown, in contrast to the rest of the venter, which is reddish brown. (1)

s FL / w. Indies / Mex. to C. Amer. (1)

primarily at or near the coast in open weedy areas on sand or sandy soil (1)

Adults and larvae are likely to be scavengers on dead plant material and probably fungi on its surfaces. (1)

Adults hide during the day under matted leaf litter, in open areas, but often shaded by shrubs, or at the base of trees. They were especially common in sites of human disturbance — near buildings, weedy roadsides, edges of garden plantings, and areas of coarse turf that receive occasional mowing and where layers of thatch accumulate. (1)

often common where found, appears to be a relatively recent addition to the U.S. (Florida) fauna ca. 1968. (1)

Hymenorus farri comes in to lights during outbreaks by the thousands. And, they are around for a long time. (M. A. Ivie, pers. obs., pers. comm. to MAQ, 2016)

Steiner, W. (2004) New distribution records and recent spread of Hymenorus farri Campbell (Coleoptera: Tenebrionidae: Alleculinae) to Florida and in the Caribbean Region. Proceedings of the Entomological Society of Washington, 106(4): 739-746.