What is "pentaplatarthus"

Pentaplatarthus is a genus of beetles in the family Carabidae, containing the following species:

• Pentaplatarthrus schoutedeni Reichensperger, 1925
• Pentaplatarthrus bottegi Gestro, 1895
• Pentaplatarthrus dollmanni Wasmann, 1922
• Pentaplatarthrus focki Wasmann, 1919
• Pentaplatarthrus gestroi H.Kolbe, 1896
• Pentaplatarthrus natalensis Westwood, 1850
• Pentaplatarthrus paussoides Westwood, 1833
• Pentaplatarthrus vandamii Van De Poll, 1886