What is "kalligrammatidae"

Kalligrammatidae, sometimes known as kalligrammatids or kalligrammatid lacewings, is a family of extinct insects in the order Neuroptera (lacewings) that contains twenty genera and a number species. The family lived from the Middle Jurassic to the Early Middle Cretaceous before going extinct. Species of the family are known from Europe, Asia, and South America. The family has been occasionally described as 'butterflies of the Jurassic' based on their resemblance to modern butterflies in morphology and ecological niche.