Illustrations of left elytron, lateral view, showing variation in the form of the 8th elytral interneur (other interneurs not shown) among newly described taxa. A Stigmatachys uvea (holotype, ♀) B Polyderidius sp. C Nothoderis sp. DMeotachys (Scolistichus) riparius; EMeotachys (Hylotachys) ballorum; FElaphropus (Ammotachys) marchantariusGElaphropus (Idiotachys) acutifronsHElaphropus (Nototachys) occidentalisI Tachyxysta howdenorum. Scale bars = 0.25 mm.