Pterostichus nigrita (Paykull, 1790)
Pronotum of Pterostichus nigrita (Paykull, 1790)
Outline of the pronotum of Pterostichus nigrita (Paykull, 1790)
The image above shows the hind leg of Pterostichus nigrita (Paykull, 1790). The last tarsal segment has no setae on the underside.
In the image, the setae on the underside of the leg are shown in blue lines. Pterostichus nigrita (Paykull, 1790) does not have such setae. Other species of the genus Pterostichus may have these setae.
Pterostichus nigrita (Paykull, 1790) – the penis (aedeagus) has a plate shown in blue in the image above.
The very similar species Pterostichus nigrita (Paykull, 1790) and Pterostichus rhaeticus (Heer, 1837) can be distinguished by the plate near the penis. The image above illustrates the differences in shape. Both species inhabit the same environment and can occur together.
Habitat.
Pterostichus nigrita (Paykull, 1790) inhabits areas near water.
