What is "negreum"

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

• Negreum amagisanum Morita, 1994
• Negreum asakoae Morita, 1994
• Negreum bentonis Bates, 1883
• Negreum bicolore Morvan, 2006
• Negreum ehikoense (Habu, 1954)
• Negreum kulti (Jedlicka, 1940)
• Negreum lianzhouense Morvan & Tian, 2001
• Negreum morvani Laasalla, 1997
• Negreum mutator Bates, 1883
• Negreum nanlingense Morvan & Tian, 2001
• Negreum peliotes Habu, 1974
• Negreum qiongxiense Morvan & Tian, 2001
• Negreum rougemonti Morvan, 1998
• Negreum wangmini Morvan & Tian, 2001
• Negreum yasuii Habu, 1974