洛马米长尾猴（Cercopithecus lomamiensis），亦有音译作勒苏拉（Lesula）是一种旧世界猴的品种，生长于刚果民主共和国中部的洛马米盆地（Lomami Basin）。这种猴子于2007年发现，并于2012年登刊确认，是非洲大陆自1984年以来第二种新发现的品种，距离上一新物种伦圭猴于2005年发现只有7年。

洛马米长尾猴因为在洛马米河附近发现而得名，现时在刚果民主共和国的雨林内生活，而于2007年发现时被圈养的那只则位于乔波省奥帕拉一条村的一家小学里的笼子。自从被发现后，动物学家亦开始在国家中部洛马米河与楚阿帕河之间的野外发现牠的踪影。

The lesula (Cercopithecus lomamiensis) is a species of Old World monkey in the guenon family, found in the Lomami Basin of the Congo. Though known to locals, it was unknown to the international scientific community until it was discovered in 2007 and confirmed in a 2012 publication. The lesula is the second new species of African monkey to be discovered since 1984. This monkey is described to have human looking eyes and a blue bottom “And adult males have a huge bare patch of skin in the buttocks, testicles and perianal area,” said John A. Hart, the researcher who described the monkey. “It’s a brilliant blue, really pretty spectacular.”