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This extremely pale color form of Pearl Crescent was seen on Sept. 24, 2011 at Eagle Lake Wildlife Management Area in Shelby County just north of Memphis. I've never seen a pale individual like this, almost completely devoid of orange pigmentation.

I base this ID on the shape of the wings and antennae, the blue-green shimmer and the faint line of white dots on the hind wing. Is the almost complete lack of color a genetic aberration, or is it simply a very old individual that has lost most of its scales?

Incidentally, this is my 1000th observation on iNaturalist. I'm very happy to have found this community to share my love of nature. Many thanks to all the people who keep identifing my observations! I'm grateful to learn from you and pleased when I can help you in return. Thank you @epsilon, @horticultix, @jasonrgrant, @manuelramalho, @pastabaum, @tim82 , @vaudoiseaux and @wini56, to name just a few.

Continuing aberrant Zebra longwing that I first observed on December 23, 2021. A little more worn but still looking pretty good. Never new these feed on both nectar and pollen which confers longer life span.

This is an axanthic genetic aberration in which the normal yellow pigment is not expressed (hence no yellow side stripe and no green frog -- it takes yellow pigment to overlay the blue to give you a green tree frog)

Looked strange. A local expert said it was a rare aberrant specimen, he had never seen one before. Black cell on front tip of forewing stands out, no spots. More black than usual. Had barely seen any butterflies in my new, immature garden I made for Brookdale - and then this showed up!

On crabapple tree. There seemed to be some drama in squirrel land that day. Eight or ten regular gray squirrels were having a noisy battle on a huge silver maple tree in the next yard. This albino did not participate, but seemed to be part of a moving group that was battling with our local squad. Maybe? He/she eventually moved into the yard with the silver maple, but stayed on the ground. No other sightings before or after that day.

Xylophanes campisi
https://v3.boldsystems.org/index.php/Taxbrowser_Taxonpage?taxid=1286626
“Holotypus, Xylophanes campisi Haxaire & Melichar 2023” - Costa Rica, Guanacaste, Area de Conservacion Guanacaste.
Etymology: We name this species after our colleague and friend, Marcos Cesar Campis de Morro Agudo (Brasil, São Paulo), an eminent wildlife photographer who constantly amazes us with his images of Brazilian Sphingidae. May he find here the indicarion of nour great gratitude and admiration.

Etimologia: Damos a esta espécie o nome de nosso colega e amigo, Marcos Cesar Campis de Morro Agudo (Brasil, São Paulo), um eminente fotógrafo da vida selvagem que sempre nos surpreende com suas imagens de esfingídeos brasileiros.
Que ele encontre aqui a indicação de nossa grande gratidão e admiração.

Nos artigos cientificos ela era descrita somente nos Estados do Rio de Janeiro(Niteroi) e Santa Catarina (Joinville).
Com essa descoberta, foi feito registro cientifico de redistribuição para o Estado de São Paulo.
Marquinhos agradece aos pesquisadores Augusto Rosa (UFMG), Danilo Bandini Ribeiro (UFMS), André Victor Lucci Freitas (Unicamp) e ao renomado Dr. Olaf H.H. Mielke (UFPR) pela confirmação da identificação de Drephalys mourei.

Periphoba campisi - C. Mielke, Ciseski & Naumann, 2020
Etymology.
"The new species is named in honour of Marcos
Campis (Morro Agudo) in recognition of his friendship and
for his efforts on photographing many Lepidoptera species
in the Serra da Canastra. It is a noun in the genitive case
derived from the personal name Campis. The gender of the
name is masculine".

Mariposa recém-descoberta na savana brasileira.
Newly discovered moth in the Brazilian savannah.

A distribuição geografica de Periphoba campisi esta restrita as montanhas da Serra da Canastra.
O exemplar recem descrito esta depositado na Coleção Entomológica do Instituto Oswaldo Cruz, no Rio de Janeiro.