Molpastes atricapillus klossi Gyldenstolpe, Bull. Brit. Ornith. Club, vol. XLI, 9th. November 1920, p. 12.= Pycnonotus aurigaster klossi Gyldenstolpe, 1920
Holotype ? : Male ad., Koon Tan, Northern Siam. 10. V. 1914. N. Gyldenstolpe leg. No. 316. - Measurements of type : wing : 91 mm.; tail : 90 mm.; culmen : 17 mm.; tarsus : 22 mm.Click on the picture for enlargement.