Archaeomegalomus gen. nov.: A remarkable new brown lacewing from mid-Cretaceous Kachin amber from northern Myanmar (Neuroptera: Hemerobiidae).

A new fossil species of Hemerobiidae, Archaeomegalomus burmiticus gen. et sp. nov., is described from mid-Cretaceous Kachin amber of northern Myanmar. This new genus is the third Mesozoic Hemerobiidae with a single stem of the radius posterior (RP) in the forewing. This suggests that A. burmiticus is one of the specialized side branches within the basal Hemerobiidae. Our study sheds more light on the Cretaceous diversity of Mesozoic brown lacewings, suggesting potentially higher generic and species paleodiversity of the hemerobiids in Burmese amber.

A new genus and species of thorny lacewing from Upper Cretaceous Kuji amber, northeastern Japan (Neuroptera, Rhachiberothidae).

Kujiberothateruyukii gen. et sp. n., a remarkable new genus and species of Rhachiberothidae, is described from Upper Cretaceous amber from the Kuji area in northeastern Japan. This discovery represents the first record of this family both from Japan and from East Asia. This fossil taxon has the largest foreleg in the subfamily Paraberothinae found to date and its discovery implies that this group had higher morphological diversity in the Cretaceous than it does now. This finding also stresses the importance of the insect inclusions in Kuji amber, which have not been well explored in spite of their potential abundance.