Ululodinae is a subfamily or tribe (as Ululodini) of

owlflies Ascalaphidae is a family of insects in the order Neuroptera, commonly called owlflies; there are some 450 extant species. They are fast-flying crepuscular or diurnal predators of other flying insects, and have large bulging eyes and strongly ...

. Both they and the

Ascalaphinae Ascalaphini is the type subfamily of the neuropteran owlfly family. Most species are found in the tropics. Their characteristic apomorphy , shared with the Ululodini, is the ridge which divides each of their large compound eyes; both groups are ...

are sometimes known as split-eyed owlflies due to the characteristic ridge that bisects their

compound eyes A compound eye is a visual organ found in arthropods such as insects and crustaceans. It may consist of thousands of ommatidia, which are tiny independent photoreception units that consist of a cornea, lens, and photoreceptor cells which distin ...

References

Myrmeleontidae Insect subfamilies {{Antlion-stub