Purple-naped spiderhunter 
or purple-naped sunbird 
(Hút mật bụng vạch, Kurochkinegramma hypogrammicum)
formerly placed in the genus Hypogramma.

The purple-naped spiderhunter or purple-naped sunbird (Kurochkinegramma hypogrammicum) is a species of bird in the family Nectariniidae.

Nectariniidae: New Latin, from Nectarinia, type genus + -idae.
Kurochkinegramma: unknown origin/meaning.
hypogrammica, hypogrammicum, hypogrammicus: Greek hupo beneath; grammikos lined, linear (gramme line).