Neolepidoptera

Definition

A major clade within the suborder Glossata (Lepidoptera) comprising the majority of living butterflies and moths, distinguished by derived larval, pupal, and adult features. Diagnostic traits include: larvae with abdominal prolegs bearing intrinsic musculature and apical hooklets (crochets); pupae with incomplete or obtect dehiscence (lacking free appendages); reduced mandibular area; and reproductive systems with two separate openings (gonopore and accessory opening). The clade contrasts with the paraphyletic grade 'non-neolepidopteran' glossatans (e.g., some primitive lineages with functionally legless larvae and decticous pupae). Neolepidoptera encompasses the vast diversity of macro-moths, micro-moths, and butterflies, excluding only the most basal glossatan lineages.

Etymology

Greek neo- (new, recent) + Lepidoptera (scale-winged insects)

Example

The owlet moths (Noctuidae), silk moths (Saturniidae), and brush-footed butterflies (Nymphalidae) all belong to Neolepidoptera, sharing the derived proleg structure with crochets that distinguishes them from more primitive moth lineages such as mandibulate archaic moths.

Related Terms

• Glossata
• Myoglossata
• Ditrysia
• Heteroneura
• Proleg
• obtect pupa
• Crochet
• Lepidoptera
• Exoporia
• Monotrysia

Usage Notes

Neolepidoptera is a clade name, not a formal Linnaean rank; it is approximately equivalent to the 'higher Lepidoptera' of older literature. The term is primarily used in phylogenetic systematics and comparative morphology. Contrast with: (1) non-neolepidopteran Glossata—lineages with legless or functionally legless larvae and decticous pupae; (2) specifically, the sister group Exoporia (ghost moths and relatives), which retains separate genital openings but has different pupal and larval morphology. The proleg/crochet system is a key field character for larval identification.