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Rostricephalus  Fleutiaux, 1918 is an enigmatic and little-studied genus. A new species of this genus,  Rostricephalus shiin. sp. , is described from Sichuan Province, China. The female genitalia of the new species are illustrated and compared with those of the previous only known species,  Rostricephalus vitalisi  Fleutiaux, 1918. The sclerites of the bursa copulatrix show taxonomic value in distinguishing the species in this genus. The type specimens of  R. vitalisi  are re-examined and illustrated for the first time, and the lectotype is designated. A distribution map is provided for all literature records of  Rostricephalus . The discovery of the new species extends the distribution range of  Rostricephalus  to south-central Sichuan of China.

On the little-known click-beetle genus Rostricephalus (Coleoptera: Elateridae: Lissominae), with description of a new species from China