Apteroathlia Smith & Evans, new genus

http://zoobank.org/urn:lsid:zoobank.org:act:778D2B0C-E445-46BC-84CB-338DA4F2F7F6

Type species. Apteroathlia translucida Smith & Evans, new species, here designated.

Description. Length 5.9–9.4 mm. Ovate, widest behind middle of elytra; testaceous to black, or black with testaceous appendages and partly or entirely testaceous pronotum; surfaces moderately to strongly shiny, and mostly glabrous. Head: labrum wide, broadly emarginate, evenly and shallowly reflexed anteriorly, completely fused to and slightly below plane of clypeus exposing anterior clypeal margin; labroclypeal suture distinct and terminating in small, marginal notches. Mentum longer than wide, narrowly emarginate in front, with sides gradually converging posteriorly. Antennae with 8 antennomeres, club with 3 short, thick lamellae. Pronotum: convex, wider than long, widest medially. Elytra: convex and without costae or distinct interval, punctostriate. Metathoracic wings absent. Abdomen: with lateral carinae on ventrites. Legs: protibia weakly tridentate on outer margin, spur present and reaching to basal third or half of protarsomere 1. Claws symmetrical and toothed with a short, bisetose onychium in between. Metatibial apices with spurs set in notch, each set on either side of tarsal articulation, longest spur reaching about two-thirds to three-quarters the length of first tarsomere. Male genitalia: symmetrical parameres simple in form, not split or with strong sinuations, and subequal in length to phallobase.

Etymology. Apteroathlia means “wingless Athlia ” to indicate the similarities with the genus Athlia . The name is feminine in gender to match Athlia .

Composition. Apteroathlia nox new species and Apteroathlia translucida new species .

Remarks. The two known species in this genus are both endemic to the region around Río de la Plata in

Uruguay and Argentina.