Chasmoptera mathewsi is an insect in the spoonwing family (Nemopteridae). found in Western Australia.
It was first described in 1967 by Lucien Everard Koch and known only the holotype, a male specimen from Peron Peninsula, Shark Bay, WA.
The adults are diurnal flying insects, and the larvae are predatory.
References
External links Chasmoptera mathewsi: images & occurrence data from Atlas of Living Australia