Megalopygidae

Superregnum: Eukaryota
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Cladus: Protostomia
Cladus: Ecdysozoa
Cladus: Panarthropoda
Phylum: Arthropoda
Subphylum: Hexapoda
Classis: Insecta
Cladus: Dicondylia
Subclassis: Pterygota
Cladus: Metapterygota
Infraclassis: Neoptera
Cladus: Eumetabola
Cladus: Endopterygota
Superordo: Panorpida
Cladus: Amphiesmenoptera
Ordo: Lepidoptera
Subordo: Glossata
Cladus: Coelolepida
Cladus: Myoglossata
Cladus: Neolepidoptera
Infraordo: Heteroneura
Cladus: Eulepidoptera
Cladus: Ditrysia
Cladus: Apoditrysia
Superfamilia: Zygaenoidea

Familia: Megalopygidae
Genera: Aithorape - Alimera - Alpis - Anarchylus - Archylus - Bedalia - Carama - Cephalocladia - Chrysopyga - Cistissa - Coamorpha - Cyclara - Edebessa - Endobrachys - Eochroma - Gasina - Gois - Hysterocladia - Isochroma - Lagoa - Langucys - Macara - Mallotodesma - Malmella - Malmis - Megalopyge - Mesoscia - Microcladia - Microrape - Norape - Norapella - Ochrosoma - Oylothrix - Pimela - Podalia - Praenorape - Proterocladia - Psychagrapha - Ramaca - Repnoa - Saltiga - Sciathos - Sulychra - Thoscora - Trosia - Ulosota - Unduzia - Vadimas – Vescoa - Wittinia – Zebonda - Zyzypyge
Name

Megalopygidae Herrich-Schäffer, 1855.

Megalopyge opercularis, male. Location: Durham County, North Carolina, United States.

References

Pitkin, B. & P. Jenkins. Butterflies and Moths of the World: Generic Names and their Type-species. Natural History Museum.[1]
Volkova, J.S. 2019. Wittina gen. n., a New Genus: of Neotropical Moths (Lepidoptera, Megalopygidae). Entomological Review 99(2), 245-249. [Original Russian Text in Entomologicheskoe Obozrenie, 2019, 98(1): 43–47]. Reference page.
Volkova, J.S. 2019a. Vadimas Volkova, gen. n., a new genus of Megalopygidae (Insecta: Lepidoptera). SHILAP Revista de Lepidopterología 48(189): 31-38. Reference page.

Vernacular names
English: Crinkled Flannel Moths
中文: 绒蛾科

The flannel moths or crinkled flannel moths (scientific name Megalopygidae) are a family of insects. They occur in North America (11 species) and the New World tropics. The larvae are called puss caterpillars, and with their long hairs, resemble cotton balls. They have venomous spines that can cause a painful sting and inflammation lasting for several days. In some cases, the sting may cause headache, nausea, and shock-like symptoms. Perhaps the most notorious for stinging is the caterpillar of Megalopyge opercularis.
A Megalopyge opercularis caterpillar on Kent Island, Maryland: a highly toxic species
Genera

Aithorape
Cephalocladia
Coamorpha
Edebessa
Endobrachys
Eochroma
Hysterocladia
Macara
Malmella
Megalopyge
Mesoscia
Microcladia
Microrape
Norape
Norapella
Podalia
Proterocladia
Psychagrapha
Repnoa
Thoscora
Trosia
Vescoa
Zyzypyge

References

Natural History Museum genus database
"Insects of Cedar Creek, Minnesota". cedarcreek.umn.edu.
BugGuide
USGS--Caterpillars of Eastern Forests
Auburn University
Moths of Borneo—lists the family as neotropical
Virginia Tech Cooperative Extension
Ohio State University