Caprimulgus is a large and widespread genus of nightjars, medium-sized nocturnal birds with long pointed wings, short legs and short bills. Caprimulgus is derived from the Latin capra, "nanny goat", and mulgere, "to milk".

1/ Indian nightjar (Cú muỗi Châu Á, Caprimulgus asiaticus)
2/ Jungle nightjar (Cú muỗi Ấn Độ, Cú muỗi Ấn Độ, Caprimulgus indicus)
 formerly called the grey nightjar or Indian jungle nightjar
3/ Large-tailed nightjar (Cú muỗi đuôi dài, Caprimulgus macrurus)
4/ Savanna nightjar, sometimes also allied nightjar or Franklin's nightjar, (Cú muỗi Savan, Caprimulgus affinis) 
Six subspecies recognised are: 
  Caprimulgus affinis monticolus, 
  Caprimulgus affinis amoyensis, 
  Caprimulgus affinis stictomus, 
  Caprimulgus affinis affinis, 
  Caprimulgus affinis timorensis and 
  Caprimulgus affinis propinquus