Pelenomus Thomson, 1859

Yang, Lujing, Huang, Junhao, Zhang, Runzhi & Wu, Hong, 2013, A review of the genus Pelenomus Thomson (Coleoptera: Curculionidae: Ceutorhynchinae) from China, Zootaxa 3652 (4), pp. 401-423 : 402

Pelenomus Thomson, 1859

Diagnosis. Pelenomus is most closely related to Phytobius Schoenherr, 1833 sharing with the latter a pair of sharp apical pronotal denticles whose distance is about as wide as rostral width, a pair of lateral pronotal tubercles, sixsegmented antennal funicle, meso- and metasternum without rostral sulcus, and femora edentate. However, Pelenomus can be distinguished by its much sparser vestiture, and its rostrum shorter than the pronotum, whereas almost all the body of Phytobius is covered with dense scales, and its rostrum is distinctly longer than the pronotum.

Distribution. Eurasia, North America (Colonnelli, 2004).

Biological notes. On Polygonum (Polygonaceae) , Glaux (Primulaceae) , Myriophyllum (Halorhagaceae) , Spergularia (Caryophyllaceae) , Lythrum (Lythraceae) , Elatine (Elatinaceae) , Saxifraga (Saxifragaceae) , Potamogeton (Potamogetonaceae) , Alchemilla , Comarum , Sanguisorba (Rosaceae) (Colonnelli, 2004).