Bibio marco 5046

Bibio marco 5046

Observation - Bibio marco 5046. Description: Adults emerge circa St Mark's Day, 25th April. long dangling legs hanging downin flight strong sexual dimorphism Males c 12mm long with very large eyes and clear wings - Females 14mm long smaller eyes and heads / opague brown wings.

Adults emerge circa St Mark's Day, 25th April. long dangling legs hanging downin flight strong sexual dimorphism Males c 12mm long with very large eyes and clear wings - Females 14mm long smaller eyes and heads / opague brown wings.