Cyclorhipidion truncaudinum Smith, Beaver & Cognato 2020 (in Smith et al. 2020b): 202.
4.0 mm long (mean = 4.0 mm; n = 3); 2.67−2.86 times as long as wide. This species is distinguished by the large size; truncate declivity surrounded by a granulate circumdeclivital costa; pronotum subquadrate from dorsal view (type 3); declivital interstrial punctures replaced by a single row of tubercles; declivital strial punctures large, distinct; declivital face with 3 striae, distinctly sulcate on basal 1/2, surface rugose, coarsely sculptured and appearing undulating; declivital striae impressed, striae 1 more deeply impressed; and interstriae 1 inflated on apical 1/3 and interstriae 2 and 3 flat.
Cyclorhipidion amasoides, C. amputatum, C. circumcisum, C. muticum, C. umbratum, all of which are large and have an obliquely truncate or truncate declivity
recorded from Lithocarpus (Fagaceae) (Smith et al. 2020b)
Sequences available for COI and CAD.