Agdistinae

J. W. Tutt, 1907

Cleftless-winged Plume Moths

Genus Guides

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Agdistinae is a of plume moths (Pterophoridae) containing a single , Agdistis. These are distinguished from other plume moths by their unlobed, entire wings that lack the characteristic clefts found in most Pterophoridae. The subfamily was established by J. W. Tutt in 1907 and represents a morphologically divergent lineage within the .

Agdistis by (c) Donald Hobern, some rights reserved (CC BY). Used under a CC-BY license.

Pronunciation

How to pronounce Agdistinae: /æɡˈdɪstɪniː/

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Identification

The absence of wing clefts is the primary diagnostic feature separating Agdistinae from all other . Members of Agdistis can be distinguished from superficially similar by the combination of: entire (uncleft) wings, the characteristic plume moth resting posture with wings held steeply roof-like, and the presence of wing-coupling structures typical of Pterophoridae. Genitalia is used for definitive -level identification.

Images

Appearance

have broad, rounded wings that are not divided into plumes or lobes, unlike the deeply cleft wings typical of most plume moths. The wings are held roof-like over the body at rest. The body is slender with long, spindly legs. Wing venation is reduced compared to other Pterophoridae. Larvae are not well described but are presumed to have the general form of caterpillars.

Distribution

of Agdistis have been recorded from the Palearctic, Afrotropical, and Oriental regions. The shows a distribution centered on the Old World, with particular diversity in the Mediterranean region and parts of Africa and Asia.

Similar Taxa

  • Other Pterophoridae subfamilies (Pterophorinae, Ochyroticinae, etc.)All other have wings divided into two or more lobes or plumes by deep clefts; Agdistinae alone has entire, unlobed wings.
  • Alucitidae (many-plumed moths)Alucitidae have wings divided into multiple narrow plumes (typically 6 per wing), whereas Agdistinae wings are entire and undivided; Alucitidae also have different wing-coupling mechanisms.

More Details

Taxonomic note

The status of Agdistinae (containing only Agdistis) makes it unusual among . Some authors have questioned its rank, but molecular and morphological studies generally support its recognition as a distinct subfamily representing an early-diverging lineage within Pterophoridae.

Etymology

The "Cleftless-winged Plume Moths" directly references the diagnostic absence of wing clefts that otherwise define the .

Sources and further reading