Neptosternus ceylonicus is a species of beetle.Hendrich, L., and M. Balke. "Two new species of Neptosternus SHARP 1882 from Southern India (Coleoptera: Dytiscidae)." Linzer biologische Beiträge 31.1 (1999): 57-62. Its holotype was found in Sri Lanka. The specimens were captured in running water or when flying towards light in the evening.
Description This species resembles other smaller or medium-sized species of Neptosternus. It may be recognized by the size, fairly widely oval shape of its body, the colour-patterns of pronotum and elytra, and the shape of the penis in the males. Its length is between , while its breadth is between . It shape is elongate and oval, moderately convex dorsally; and its upper surface shining. Its head and antennae are yellowish in colour, with fine and remote punctation on the head. It also has a reticulate surface. The pronotum is yellowish with a narrow transverse slightly darker band in the middle, and an anterior submarginal row of punctures that are irregular.
References
External links ITIS entry