- Source: Lachnocnema emperamus
- Lachnocnema emperamus
- Lachnocnema
- List of butterflies of Sudan and South Sudan
- List of butterflies of Nigeria
- List of butterflies of Sierra Leone
- List of butterflies of the Central African Republic
- List of butterflies of the Democratic Republic of the Congo
- List of butterflies of Gabon
- List of butterflies of the Gambia
- List of butterflies of Ivory Coast
Lachnocnema emperamus, the common woolly legs or western woolly legs, is a butterfly in the family Lycaenidae. It is found in Senegal, the Gambia, Guinea, Sierra Leone, Liberia, Ivory Coast, Ghana, Togo, Nigeria, Cameroon, Gabon, the Republic of the Congo, the Central African Republic, Angola, the Democratic Republic of the Congo, southern Sudan, Ethiopia, Uganda, and western and central Kenya. The habitat consists of savanna and degraded forests.
The larvae feed on Psyllidae species.