BioImages: The Virtual Field-Guide (UK)

EXOPTERYGOTA (insects with wings developing externally)

Notes (MWS)

These insects have wingless juvenile forms (eg nymphs) which often look fairly similar to the adults, albeit with wings reduced or absent. Development from the juvenile to the adult form (metamorphosis) proceeds by a series of stages (instars) which (in the winged species) have increasingly developed wings leading to the fully-winged adult.

Subtaxa

Rank	Taxon
Order	DERMAPTERA (earwigs)	3	7	2		6	3
Order	EPHEMEROPTERA (mayflies, upwinged flies)	8	73	71	11	6	1
Order	HEMIPTERA (bugs)	150	406	315		76	138
Order	HOMOPTERA (bugs)	139	87	94		28	369
Order	ODONATA (dragonflies)	33	212	37		45	2
Order	ORTHOPTERA (grasshoppers, crickets and cockroaches)	26	135	103	1	27	10
Order	PHTHIRAPTERA (sucking lice)	3	3	6		2	2
Order	PLECOPTERA (stoneflies)	3	21	10	6	2
Order	PSOCOPTERA (booklice and barklice or barkflies)			5		3	3
Order	THYSANOPTERA (thrips)		1	2		4	4