. Economic entomology . Hydrachna geographica. Copied from Miiller. Koch breaks up this group into three additional genera, chiefly- founded upon the dimensions and proportions of the palpi. They do not appear to deserve separation from Hydrachna. They are— LIMNESIA, HYDRYPHANTES, and HYDRODROMA.

---

Size: 2776px × 1801px
Photo credit: © The Bookworm Collection / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: ., bookcentury1800, bookdecade1870, bookpublisherlondonchapmanandha