Hyperstoma wittmeri, is a species of firefly beetle endemic to Sri Lanka.

The 1 to 6 antennomeres are yellow to light brown in color and 7 to 11 antennomeres are dark brown.

Penultimate abdominal tergum is rounded basally.

Male genitalia possess a V-shaped phallobase with robust paramerae.

Phallus circular distally with round apex.