Red-thighed Cellophane-cuckoo Bee
Epeolus cruciger
- Least concern
- Card rarity: Common
- Insects

Epeolus cruciger, the red-thighed epeolus, is a species of cuckoo bee from the family Apidae. It is endemic to Europe, where its main host is the common colletes, although other species of Colletes mining bees have been recorded as hosts.
Classification
- Class
- Insecta
- Order
- Hymenoptera
- Family
- Apidae
- Genus
- Epeolus