Skip to content
Information iconThe Oregon silverspot butterfly is listed as threatened under the Endangered Species Act. (Photo: Peter Pearsall/USFWS)

The pollinators below are listed as federally threatened or endangered under the the Endangered Species Act of 1973. The act provides a framework to conserve and protect listed species and their habitats. Learn more here about the act and the species it protects.

Little Mariana fruit bat (Pteropus tokudae)
Mariana fruit bat (Pteropus mariannus mariannus)
Mexican long-nosed bat (Leptonycteris nivalis)

‘Akeke'e or Kaua'i 'Akepa (Loxops caeruleirostris)
'Akiapola'au (Hemignathus wilsoni)
'Akikiki (Oreomystis bairdi)
'Akohekohe or crested honeycreeper (Palmeria dolei)
'Alala or Hawai'ian crow (Corvus hawaiiensis)
Bridled white-eye (Zosterops conspicillatus conspicillatus)
Hawai'i 'Akepa (Loxops coccineus)
Hawai'i creeper (Loxops mana) [1]
'I'iwi or Scarlet Hawaiian honeycreeper (Drepanis coccinea)
Kaua'i 'Akialoa (Akialoa stejnegeri)
Kaua'i Nukupu'u (Hemignathus hanapepe)
Kaua'i 'O'o (Moho braccatus)
Ma'oma'o or Mao (Gymnomyza samoensis)
Maui 'Akepa (Loxops ochraceus)
Maui Nukupu'u (Hemignathus affinis)
Maui parrotbill (Pseudonestor xanthophrys)
Moloka'i creeper or Kākāwahie (Paroreomyza flammea)
O'ahu 'Alauahio or O'ahu creeper (Paroreomyza maculata)
ʻŌʻū (Psittirostra psittacea)
Palila (Loxioides bailleui)
Po'ouli (Melamprosops phaeosoma)
Rota bridled white-eye (Zosterops rotensis)
[1] Still listed in some locations by its former scientific name, Oreomystis mana

Anthricinan yellow-faced bee (Hylaeus anthracinus)
Assimulans yellow-faced bee (Hylaeus assimulans)
Easy yellow-faced bee (Hylaeus facilis)
Hawaiian yellow-faced bee (Hylaeus kuakea)
Hawaiian yellow-faced bee (Hylaeus longiceps)
Hawaiian yellow-faced bee (Hylaeus mana)
Hilaris yellow-faced bee (Hylaeus hilaris)
Rusty patched bumblebee (Bombus affinis)

Butterflies, Skippers, and Moths
Bartram's hairstreak butterfly (Strymon acis bartrami)
Bay checkerspot (Euphydryas editha bayensis)
Behren’s silverspot (Speyeria zerene behrensii)
Blackburn’s sphinx moth (Manduca blackburni)
Callippe silverspot (Speyeria callippe callippe)
Carson wandering skipper (Pseudocopaeodes eunus obscurus)
Cassius blue (Leptotes cassius theonus) [Listed due to similarity in appearance to Miami blue.]
Ceraunus blue (Hemiargus ceraunus antibubastus) [Listed due to similarity in appearance to Miami blue.]
Dakota skipper (Hesperia dacotae)
El Segundo blue (Euphilotes battoides allyni)
Fender’s blue (Icaricia icarioides fenderi)
Florida leafwing (Anaea troglodyta floridalis)
Island marble butterfly (Euchloe ausonides insulanus)
Karner blue (Lycaeides melissa samuelis)
Kern primrose sphinx moth (Euproserpinus euterpe)
Laguna Mountains skipper (Pyrgus ruralis lagunae)
Lange’s metalmark (Apodemia mormo lange)
Lotis blue (Lycaeides argyrognomon lotis)
Mariana eight-spot butterfly (Hypolimnas octocula mariannensis)
Mariana wandering butterfly (Vagrans egistina)
Miami blue (Cyclargus thomasi bethunebakeri)
Misson blue (Icaricia icarioides missionensis)
Mitchell’s satyr (Neonympha mitchellii mitchellii)
Mount Charleston blue (Plebejus shasta charlestonensis)
Myrtle’s silverspot (Speyeria zerene myrtleae)
Nickerbean blue (Cyclargus ammon) [Listed due to similarity in appearance to Miami blue.]
Oregon silverspot (Speyeria zerene hippolyta)
Palos Verde blue (Glaucopsyche lygdamus palosverdesensis)
Pawnee montane skipper (Hesperia leonardus montana)
Poweshiek skipperling (Oarisma poweshiek)
Quino checkerspot (Euphydryas editha quino)
San Bruno elfin (Callophrys mossii bayensis)
Schaus swallowtail (Heraclides aristodemus ponceanus)
Smith’s blue (Euphilotes enoptes smithi)
St. Francis’ satyr (Neonympha mitchellii francisci)
Taylor's checkerspot (Euphydryas editha taylori)
Uncompahgre fritillary (Boloria acrocnema)

Other Insects
Delhi Sands flower-loving fly (Rhaphiomidas terminatus abdominalis)
Valley elderberry longhorn beetle (Desmocerus californicus dimorphus)

List updated 09/01/2021


Information iconThe rusty patched bumblebee was listed as endangered in 2017. (Photo: USFWS)