Limnobaris babai Chûjô & Morimoto 1959

The Japanese Limnobaris babai is very similar to Limnobaris elliptica from Myanmar and South China. These two species can be distinguished from all others by the blunt ventromedian process on the male protibia and almost glabrous elytra. Limnobaris babai is on average larger than Limnobaris elliptica (3.5–4.5 mm vs. 3.2–3.8 mm), has shorter setae on the profemur, an apically rounded penis and the female protibia has a moderate ventromedian projection which is more subtle in Limnobaris elliptica. However, we have not compared specimens of the same size and these differences may not always hold. Limnobaris basalis, another morphologically similar species from Fujian, is smaller (2.3–3.1 mm) and has a longer rostrum.

The species occurs in Honshu and Kyushu, Japan (Yoshihara and Morimoto 1994).