Monotrysia

The Monotrysia are a group of moths in the lepidopteran order, not currently considered to be a natural group or clade.^[1] The group is so named because the female has a single genital opening for mating and laying eggs, in contrast to the rest of the Lepidoptera (Ditrysia), which have two female reproductive openings.^[1][2] Later classifications used Monotrysia in a narrower sense for the nonditrysian Heteroneura, but this group was also found to be paraphyletic with respect to Ditrysia.^[1][3] Apart from the recently discovered family Andesianidae,^[3][4] most of the group consists of small, relatively understudied species.

Monotrysia
Cuckoo flower longhorn moth, Cauchas rufimitrella
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Insecta
Order:	Lepidoptera
Infraorder:	Heteroneura
(unranked):	Monotrysia
Superfamilies
Monotrysia (Börner, 1939) Adeloidea Andesianoidea Palaephatoidea Tischerioidea Nepticuloidea

See also

• Lepidoptera § History of study