Critically Endangered
Nevada Grayling
Pseudochazara williamsi
Nevada Grayling is a brush-footed butterfly in the family Nymphalidae (order Lepidoptera) — Pseudochazara williamsi, recorded as Critically Endangered and tied to Spain.
The brush-footed butterfly
Brush-footed butterflies hold the first pair of legs reduced. The family includes fritillaries, admirals, and crows.
Moths and butterflies have scaled wings and a four-stage life: egg, caterpillar, pupa, adult. Most named species are known from a handful of specimens and a type locality.
Range and habitat
It is confined to southern Spain (endemic).
GBIF currently lists 224 occurrence points. Those points follow where people logged the taxon — museum drawers and surveys included — not a closed range boundary.
Pins are Wikidata “endemic to” fields. Orange dots, when present, are GBIF occurrence tiles — survey bias included.
Diet
The adult is what most collections hold. The larva — the feeding stage — is often undescribed for the rarest names.
Life history follows the order: complete metamorphosis in moths and beetles, nymphs in grasshoppers and bugs. This page does not invent a host plant that no source named.
In crisis
Named moths and butterflies with a high threat category are often known from a small range and a thin series. Host-plant loss leaves little to recount.
Nevada Grayling is Critically Endangered on this catalog because that is the IUCN category stored on Wikidata. Confirm the official criteria and any later count on iucnredlist.org.
Sources
Written for this catalog from the English Wikipedia article on Pseudochazara williamsi — often a short stub, Wikidata item Q7254636 and GBIF occurrence geography. Family and order context is original field-guide writing about the group, not a copied assessment of this one species. Wikipedia text is CC BY-SA. Not an IUCN assessment. Counts, when quoted, can change — confirm them on the recovery programme and on iucnredlist.org.
