The Vampire-Beast Craves Blood (The Blood Beast Terror, 1968)
In 19th-century rural England, a police inspector investigates a string of murders in which young men are found with their throats torn out and drained of blood, eyewitnesses describing a monstrous winged creature. The trail leads to a reclusive entomologist and his daughter, who is secretly a shapeshifting "were-moth" that transforms at night to feed on men, while her father desperately tries to create a mate for her from a giant moth cocoon to satisfy her growing bloodlust.

Curse of the Blood-Ghouls (Slaughter of the Vampires, 1962)
A newlywed couple moves into an old castle in 19th-century Austria, only for the bride to be bitten and killed by a vampire baron during a celebration. She returns from the grave as a vampire herself and turns on her own husband, forcing a local doctor to intervene and destroy the growing vampire threat before it consumes the entire household.