Maladera holosericea is a species of beetle of the family Scarabaeidae. It is found in Europe (Albania, Austria, Belarus, Belgium, Bosnia Herzegovina, Bulgaria, Croatia, the Czech Republic, Denmark, France, Germany, Hungary, Italy, Latvia, Lithuania, Luxembourg, Moldova, Montenegro, the Netherlands, Poland, Romania, Russia, Serbia, Slovakia, Spain, Sweden, Switzerland, Ukraine), Kazakhstan, Kyrgyzstan, China (Beijing, Gansu, Hebei, Heilongjiang, Liaoning, Nei Mongol, Tianjin, Xinjiang) and Korea.
Adults reach a length of about 7âÂÂ8.7 mm. They have a brown to blackish brown body.