# List of Hawaiian animals extinct in the Holocene

This is a list of Hawaiian animal species extinct in the Holocene that covers extinctions from the Holocene epoch, a geologic epoch that began about 11,650 years before present (about 9700 BCE) and continues to the present day.
The Hawaiian Islands include the eight major islands (the Windward Islands) and the small islands and atolls of the Northwestern Hawaiian Islands. They are all part of the U.S. state of Hawaii, except Midway Atoll, which is a separate U.S. territory.
The islands of East Polynesia (including New Zealand, Hawaii, and Easter Island) were among the last habitable places on earth colonized by humans. Estimates for the timing of Polynesian settlement in Hawaii have been uncertain, but a 2010 study based on radiocarbon dates of more reliable samples suggests that Hawaii was first settled by humnas roughly between 1219 and 1266 CE. In 1778, British explorer James Cook became the first recorded European to arrive in Hawaii. An influx of European and American explorers, traders, and whalers arrived shortly after. Hawaii was annexed by the United States in 1898 and became a state in 1959.
Numerous species have disappeared from Hawaii as part of the ongoing Holocene extinction, driven by human activity. Human contact, first by Polynesians and later by Europeans, had a significant impact on the environment. Both the Polynesians and Europeans cleared native forests and introduced non-indigenous species for agriculture (or by accident), driving many endemic species to extinction. Fossil finds in caves, lava tubes, and sand dunes have revealed that Hawaii once had a native eagle, two raven-size crows, several bird-eating owls, and giant ducks known as moa-nalo. Today, many of Hawaii's remaining endemic species of plants and animals are considered endangered. Hawaii has more endangered species and has lost a higher percentage of its endemic species than any other U.S. state. The endemic plant Brighamia now requires hand pollination because its natural pollinator is presumed to be extinct.
This list of extinct species only includes the indigenous biota of Hawaii, not domestic animals like the Hawaiian Poi Dog. Many extinction dates are unknown due to a lack of relevant information.

## Mammals (class Mammalia)
### Bats (order Chiroptera)
#### Vesper bats (family Vespertilionidae)

| Scientific name | Range | Comments |
| Synemporion keana | Kauai, Oahu, Molokai, Maui, and Hawaii (island) | Might have become extinct around the 10th century. |

## Birds (class Aves)
### Waterfowl (order Anseriformes)
#### Ducks, geese, and swans (family Anatidae)

| Common name | Scientific name | Range | Comments |
| Nēnē-nui | Branta hylobadistes | Maui, possibly Oahu and Kauai | Most recent remains dated to 1046-1380. |
| Giant Hawaiʻi goose | Branta rhuax | Hawaii (island) | Most recent remains dated to 1380-1500. |
| Turtle-jawed moa-nalo | Chelychelynechen quassus | Kauai | Only known from subfossil remains. |
| Small-billed moa-nalo | Ptaiochen pau | Maui | Known from subfossil remains. It was possibly restricted to montane habitat, while the lowlands were occupied by the Maui Nui large-billed moa-nalo. Likely disappeared due to a combination of hunting and predation or competition with introduced mammals. |
| Kauaʻi mole duck | Talpanas lippa | Kauai | Most recent remains dated to 3540-3355 BCE. Being a flightless, nocturnal, almost-blind species convergent with New Zealand's kiwi, it was likely very vulnerable to hunting and predation by introduced animals. |
| Oʻahu moa-nalo | Thambetochen xanion | Oahu | Most recent remains dated to 440-639 CE. It possibly disappeared due to a combination of hunting, habitat loss, and nest-predation by introduced mammals. |
| Maui Nui large-billed moa-nalo | Thambetochen chauliodous | Maui and Molokai | Most recent remains dated to 1057-1375. It occupied low altitudes while the small-billed moa-nalo lived at higher elevations. It likely disappeared due to hunting, and nest predation by Polynesian rats. |
| Giant Oʻahu goose | Anatidae sp. et gen. indet. | Oahu | Prehistoric |
| Long-legged shelduck | Anatidae sp. et gen. indet. | Kauai | Prehistoric |

### Rails and cranes (order Gruiformes)
#### Rails (family Rallidae)

| Common name | Scientific name | Range | Comments |
| Kepler's crake | Zapornia keplerorum | Maui | Known from subfossil remains. |
| Molokai crake | Zapornia menehune | Molokai | Known from subfossil remains. |
| Laysan rail | Zapornia palmeri | Laysan | Disappeared from Laysan in 1923 after feral rabbits ate all the vegetation in the island. Previously, the species was introduced to other islands in an attempt to save it from extinction, establishing successful populations in Midway (Eastern and Sand islands). In 1943, military construction in Midway accidentally introduced black rats, which exterminated the rails by either June 1944 or June 1945. |
| Hawaiian rail | Zapornia sandwichensis | Hawaii (island) | Last collected in 1864; claims of further survival are unsubstantiated. The nominate subspecies Z. s. sandwichensis lived on the leeward side of the island of Hawaii and the subspecies Z. s. millsi on the windward side. It coexisted peacefully with the Polynesian rat but might have been driven to extinction by the black rat. Mongooses were blamed by some authors, but they were not introduced to the island until 1883. Hunting, deforestation, predation by pigs, cats, and dogs, and introduced diseases from poultry may have been contributing factors to its extinction. |
| Great Maui crake | Porzana severnsi | Maui | Early 12th century/150 C.E. |
| Great Oʻahu crake | Porzana ralphorum | Oʻahu | Early 11th century/200 C.E. Known from subfossil remains. It was apparently limited to lowland areas while Ziegler's crake occupied the highlands, which would make it even more vulnerable to human settlement than other flightless rails. |
| Small Oʻahu crake | Zapornia ziegleri | Oʻahu | Most recent remains dated to 650-869 CE. |
| Great Hawaiian crake | "Porzana" sp. | Hawaii (island) | All prehistoric. |
| Great Kauaʻi crake | "Porzana" sp. | Kauai | All prehistoric. |
| Medium Kauaʻi crake | "Porzana" sp. | Kauai | All prehistoric. |
| Medium Maui crake | "Porzana" sp. | Maui | All prehistoric. |
| Small Hawaiian crake | "Porzana" sp. | Hawaii (island) | All prehistoric. |

### Shorebirds (order Charadriiformes)
#### Gulls, terns, and skimmers (family Laridae)

| Common name | Scientific name | Range | Comments |
| Kauaʻi gull | Larus sp. | Kauai | Known from mid-Holocene remains. There are no resident gull species in Kauai's modern fauna, though the laughing gull and others occur accidentally. |

### Albatrosses and petrels (order Procellariiformes)
#### Petrels and shearwaters (family Procellariidae)

| Common name | Scientific name | Range | Comments |
| Oʻahu petrel | Pterodroma jugabilis | Hawaii (island) and Oahu | Known from subfossil remains found in archaeological assemblages, because of this it is believed that it was hunted by people. It has no close living relatives. |

### Pelicans, herons, and ibises (order Pelecaniformes)
#### Ibises and spoonbills (family Threskiornithidae)

| Common name | Scientific name | Range | Comments |
| Maui highland ibis | Apteribis brevis | Maui | Most recent remains dated to 170 BCE - 370 CE. |
| Molokaʻi ibis | Apteribis glenos | Molokai | Prehistoric |
| Maui lowland ibis | Apteribis sp. | Maui | Prehistoric |
| Lānaʻi ibis | Apteribis sp. | Lanai | Prehistoric |

### Hawks and relatives (order Accipitriformes)
#### Hawks, eagles, kites, harriers and Old World vultures (family Accipitridae)

| Common name | Scientific name | Range | Comments |
| Wood harrier | Circus dossenus | Molokai and Oahu | Prehistoric |
| Hawaiian eagle | Haliaeetus sp. | Oahu, Molokai, and Maui | Holocene eagle fossils have been found on Oahu, Molokai, and Maui. The absence of eagle fossils from other Hawaiian islands might represent a true gap in distribution or a deficiency in the fossil record. Based on DNA research, these fossils represent the white-tailed eagle (Haliaeetus albicilla) or a very close relative. The Hawaiian eagle was an isolated, resident population in Hawaii for more than 100,000 years, where it was the largest terrestrial predator. Its extinction could have been related to human-induced ecological changes, although there is currently no direct evidence for temporal overlap with humans. |

### Owls (order Strigiformes)
#### True owls (family Strigidae)

| Common name | Scientific name | Range | Comments |
| Kauaʻi stilt-owl | Grallistrix auceps | Kauai | Most recent remains dated to 744-202 BCE. |
| Maui stilt-owl | Grallistrix erdmani | Maui | Most recent remains dated to 1057-1440 CE. |
| Molokaʻi stilt-owl | Grallistrix geleches | Molokai | Prehistoric |
| Oʻahu stilt-owl | Grallistrix orion | Oahu | Prehistoric |

### Perching birds (order Passeriformes)
#### Crows and relatives (family Corvidae)

| Common name | Scientific name | Range | Comments | Pictures |
| High-billed crow | Corvus impluviatus | Oahu | Prehistoric | |
| Robust crow | Corvus viriosus | Oahu and Molokai | Prehistoric | |

##### Extinct in the wild, crows and relatives (family Corvidae)

| Common name | Scientific name | Range | Comments | Pictures |
| Hawaiian crow | Corvus hawaiiensis | Hawaii (island) and Maui | Historically recorded on the island of Hawaii, where it was persecuted as a nuisance during the 19th century. Fossils indicate that this species or a very similar one was also found on Maui before European contact. The last wild pairs bred on the slopes of the Mauna Loa in 1992, by which time there were only 11 or 12 individuals left. One egg was laid in 1996 but didn't hatch, and the last pair was sighted in 2002. A captive population exists, but a release program in 1993-1999 ended in failure. | |

#### Reed warblers (family Acrocephalidae)

| Common name | Scientific name | Range | Comments | Pictures |
| Laysan millerbird | Acrocephalus familiaris familiaris | Laysan | Last recorded in 1913. It likely disappeared due to habitat destruction caused by feral rabbits, which were introduced in 1904 and destroyed the vegetation almost completely by 1920. | |

#### Hawaiian honeyeaters (family Mohoidae)

| Common name | Scientific name | Range | Comments |
| Kioea | Chaetoptila angustipluma | Hawaii (island), Oahu, and Maui | The last individual was collected on the island of Hawaii in 1859. Fossils indicate that this species or a very similar one was also found on Maui and Oahu before European contact. Deforestation, hunting, and introduced predators likely contributed to its extinction. |
| Narrow-billed kioea | ?Chaetoptila sp. | Maui | Known from subfossil remains. The species coexisted with the Hawaiian kioea, but had a much narrower bill. |
| Oʻahu ʻōʻō | Moho apicalis | Oahu | Last recorded in 1837. Presumably extinct due to habitat destruction and the introduction of disease-carrying mosquitos. |
| Bishop's ʻōʻō | Moho bishopi | Maui, Lanai, and Molokai | Last recorded on Molokai in 1904, with unconfirmed reports lasting until 1915. A bird thought to be this species was observed on Maui in 1981. It declined due to habitat destruction for agriculture and grazing feral mammals, before being wiped out by introduced black rats and diseases carried by mosquitos. |
| Kauaʻi ʻōʻō | Moho braccatus | Kauai | Though common before the 1890s, it became restricted to the Alakaʻi Wilderness Preserve by the 1970s, and a single pair survived by 1981. The female disappeared when Hurricane Iwa struck Kauai in 1982, and the male was recorded singing in solitary until 1987. The species likely declined due to habitat destruction, predation by introduced black rats and feral pigs, as well as disease-carrying mosquitos. |
| Hawaiʻi ʻōʻō | Moho nobilis | Hawaii (island) | Last seen in 1934. Presumably disappeared due to habitat destruction and disease. |

#### Thrushes (family Turdidae)

| Common name | Scientific name | Range | Comments | Pictures |
| Kāmaʻo | Myadestes myadestinus | Kauai | Last reliably sighted in 1985, with unconfirmed sightings until 1991. Likely causes of extinction include disease carried by introduced mosquitos, deforestation and degradation of forests by feral pigs. | |
| ʻĀmaui | Myadestes woahensis | Oahu | Known from a single individual collected in 1825 and fossil remains. The cause of extinction is unknown, though habitat destruction and avian malaria are suspected. | |

##### Possibly extinct, thrushes (family Turdidae)

| Common name | Scientific name | Range | Comments | Pictures |
| Olomaʻo | Myadestes lanaiensis | Maui, Lanai and Molokai | Possibly disappeared from Maui in the 19th century. It was last seen in Lanai in 1933, and the last reliable sighting in Molokai happened in 1980 though there were unconfirmed reports in 1988, 1994, and 2005. It could have been driven extinct by diseases spread by introduced mosquitos and habitat destruction. | |

#### True finches (family Fringillidae)

| Common name | Scientific name | Range | Comments |
| Oʻahu icterid-like gaper | Aidemedia chascax | Oahu | Prehistoric |
| Maui Nui icterid-like gaper | Aidemedia lutetiae | Maui and Molokai | Prehistoric |
| Sickle-billed gaper | Aidemedia zanclops | Oahu | Prehistoric |
| Oʻahu ʻakialoa | Akialoa ellisiana | Oahu | The species is known from only two specimens collected in 1837, although there were undocumented reports in 1937 and 1940. Thought to have been driven to extinction by habitat destruction and disease. |
| Maui Nui ʻakialoa | Akialoa lanaiensis | Maui, Lanai and Molokai | Named from three individuals collected on Lanai in 1892; fossils have also been found on Molokai and Maui. The species is thought to have been driven to extinction by habitat destruction, disease, and possibly introduced species. |
| Lesser ʻakialoa | Akialoa obscura | Hawaii (island) | Last reported in 1940. Likely extinct due to deforestation and introduced diseases. |
| Kauaʻi ʻakialoa | Akialoa stejnegeri | Kauai | Last reported in 1969. Extinct due to forest clearance and introduced disease. |
| Hoopoe-billed ʻakialoa | Akialoa upupirostris | Oahu and Kauai | Prehistoric |
| Giant ʻakialoa | Akialoa sp. | Hawaii (island) | Prehistoric |
| | Akialoa sp. | Maui | Prehistoric |
| Kona grosbeak | Chloridops kona | Hawaii (island) | Restricted to about four square miles by the time of its discovery in the late 19th century, it was last collected in 1894. The reasons of extinction are unknown, but may include habitat destruction, introduced mammalian predators, and avian malaria. |
| King Kong grosbeak | Chloridops regiskongi | Oahu | Prehistoric |
| Wahi grosbeak | Chloridops wahi | Maui and Oahu | Prehistoric. Might include the Kauaʻi grosbeak (Chloridops sp.). |
| Kauaʻi grosbeak | Chloridops sp. | Kauai | Prehistoric. Might be synonymous with the Wahi grosbeak (Chloridops wahi). |
| Maui grosbeak | Chloridops sp. | Maui | Prehistoric |
| ʻUla-ʻai-hawane | Ciridops anna | Hawaii (island) | Last collected in 1892, there was an unconfirmed sighting in 1937. The causes of extinction are unknown, but deforestation, malaria, and predation by introduced rats may have been contributing factors. |
| Stout-legged finch | Ciridops tenax | Kauai | Known from subfossil remains. Likely extinct due to habitat destruction and hunting for feathers by Polynesians. |
| Molokaʻi ʻula-ʻai-hawane | Ciridops cf. anna | Molokai | Prehistoric |
| Oʻahu ʻula-ʻai-hawane | Ciridops sp. | Oahu | Prehistoric |
| Black mamo | Drepanis funerea | Maui and Molokai | Last collected in Molokai in 1907; fossils are known from Maui. It probably disappeared due to destruction of its understorey habitat by introduced cattle and deer, and predation by rats and mongooses. |
| Hawaiʻi mamo | Drepanis pacifica | Hawaii (island) | Last recorded in 1898. Although heavily trapped for its feathers, it was likely driven to extinction ultimately by habitat destruction and disease. |
| Lānaʻi hookbill | Dysmorodrepanis munroi | Lanai | Only known from a single specimen collected in 1913 and single sightings in 1916 and 1918. Presumably driven to extinction by clearing forests for pineapple plantation, predation by cats and rats. |
| Oʻahu nukupuʻu | Hemignathus lucidus | Oahu | The last two preserved individuals were collected either during an expedition in 1838 or another in 1840-1841, though native accounts suggest it was still present in 1860. A second-hand report from 1939 is "doubtlessly incorrect". |
| Giant nukupuʻu | Hemignathus vorpalis | Hawaii (island) | Only known from fossils younger than c. 1000 BCE - 500 CE. |
| Laysan honeycreeper | Himatione fraithii | Laysan | Disappeared after almost the entire vegetation cover of the island was eaten by introduced feral rabbits. The last three individuals were killed in a storm in 1923. |
| Kauaʻi palila | Loxioides kikuchi | Kauai | Known from two fossil jaws dated to 1375-1610 CE. |
| Oʻahu ʻakepa | Loxops wolstenholmei | Oahu | Last recorded in 1930. Probably driven to extinction by habitat destruction and disease. |
| Poʻouli | Melamprosops phaeosoma | Maui | Last two individuals recorded in 2004; one died shortly after being captured. The precise causes of decline are unknown. Suggestions include habitat destruction and modification, spread of disease-carrying mosquitos, pig activity, predation by rats, cats, and small Indian mongooses; and the decline of native Hawaiian snails as a result of predation by rats and the garlic snail Oxychilus alliaricus. |
| Highland finch | Orthiospiza howarthi | Maui | Prehistoric |
| Kākāwahie | Paroreomyza flammea | Molokai | Last recorded in 1961-1963. Presumed to have disappeared due to habitat destruction and disease. |
| Lānaʻi ʻalauahio | Paroreomyza montana montana | Lanai | Extinct since 1937. |
| Lesser koa finch | Rhodacanthis flaviceps | Hawaii (island) | Seemed to have been driven to extinction by habitat destruction, and not by climatic variation nor mosquito-vectored diseases. Koa finches were likely driven out of lowland habitat before or shortly after the time of western contact in 1778. The two species from the island of Hawaii persisted until the late 19th century, when their upland refugium was degraded by logging, ranching, and intensified predation by the black rat. The lesser koa finch was last recorded in 1891. According to the IUCN red list, "this or a similar species is also known from the fossil record of O'ahu and Maui" apparently referring to the primitive koa finch (Rhodacanthis litotes). |
| Scissor-billed koa finch | Rhodacanthis forfex | Maui and Kauai | Known from fossils on Maui and Kauai. Based on its disjunct distribution, the species might have occurred on all main islands except the island of Hawaii, although more fossils are needed for confirmation. The koa finches seem to have been driven to extinction by habitat destruction, and not by climatic variation nor mosquito-vectored diseases. Koa finches were likely driven out of lowland habitat before or shortly after the time of western contact in 1778. The two species from Maui might have survived in an upland refugium until the late 19th century, paralleling the fate of the two species from the island of Hawaii. However, the only verified records are from fossils at a lower elevation. |
| Primitive koa finch | Rhodacanthis litotes | Maui and Oahu | Known from fossils on Maui and Oahu. Based on its disjunct distribution, the species might have occurred on all main islands except the island of Hawaii and perhaps Kauai, although more fossils are needed for confirmation. The primitive koa finch populations from Oahu and Maui might represent two distinct species, but more fossils or genetic data are necessary. The koa finches seem to have been driven to extinction by habitat destruction, and not by climatic variation nor mosquito-vectored diseases. Koa finches were likely driven out of lowland habitat before or shortly after the time of western contact in 1778. The two species from Maui might have survived in an upland refugium until the late 19th century, paralleling the fate of the two species from the island of Hawaii. However, the only verified records are from fossils at a lower elevation. |
| Greater koa finch | Rhodacanthis palmeri | Hawaii (island) | Last collected in 1896. The causes of extinction are unknown, but habitat destruction and introduced avian malaria are likely responsible. |
| Kauaʻi finch | Telespiza persecutrix | Oahu and Kauai | Most recent remains were found in cave deposits dated to 1425-1660. |
| Maui Nui finch | Telespiza ypsilon | Maui and Molokai | Prehistoric |
| Maui finch | Telespiza cf. ypsilon | Maui | Prehistoric |
| Strange-billed finch | Vangulifer mirandus | Maui | Prehistoric |
| Thin-billed finch | Vangulifer neophasis | Maui | Prehistoric |
| Greater ʻamakihi | Viridonia sagittirostris | Wailuku River, Hawaii (island) | Last recorded in 1901. Its only known forest habitat was cleared to plant sugar cane. |
| Cone-billed finch | Xestospiza conica | Kauai | Prehistoric |
| Ridge-billed finch | Xestospiza fastigialis | Oahu, Molokai, and Maui | Prehistoric |
| | Drepanidini gen. et sp. indet. | Maui | At least three different species, all prehistoric. |
| | Drepanidini gen. et sp. indet. | Oahu | Prehistoric |

##### Possibly extinct, true finches (family Fringillidae)

| Common name | Scientific name | Range | Comments |
| Maui nukupuʻu | Hemignathus affinis | Maui | Last confirmed sighting in 1896, though several "unconfirmed detections" happened in 1986-1998, and a single male was seen by qualified observers in the same area in 1995. The species's forest habitat has been eliminated for cattle ranching or otherwise degraded by introduced ungulates, which also spread alien plants and disease-carrying mosquitos. Predation and competition with introduced birds and insects has also been suggested. |
| Kauaʻi nukupuʻu | Hemignathus hanapepe | Kauai | Last confirmed sighting in 1899, with unconfirmed records in 1984-1998 and 2007. The more recent observations could actually belong to the Kauaʻi ʻamakihi. It possibly declined due to habitat degradation by introduced ungulates, disease, predation and competition with exotic birds and insects. |
| Maui ʻakepa | Loxops ochraceus | Maui | Last recorded in 1988, with some dubious audio taken afterward. It could have declined due to habitat loss, invasive diseases, and conflict and competition with introduced species. |
| Oʻahu ʻalauahio | Paroreomyza maculata | Oahu | Last collected in 1968 and last well-documented observation, of two birds, in 1985. It may have been driven extinct by disease spread by introduced mosquitos. |
| ʻŌʻū | Psittirostra psittacea | Hawaii (island), Maui, Molokai, Lanai, Oahu, and Kauai | Last recorded with certainty in Hawaii in 1987, and in Kauai in 1989, though there were some unconfirmed sightings after 1995. It disappeared from Oahu, Maui, Molokai, and Lanai between 1899 and 1931. It may have been driven extinct by habitat loss, introduced rats, and malaria spread by exotic mosquitos. |

#### Incertae familiae

| Common name | Scientific name | Range | Comments |
| Slender-billed Kauaʻi passerine | Passeriformes gen. et sp. indet. | Kauai | Prehistoric |
| Tiny Kauaʻi passerine | Passeriformes gen. et sp. indet. | Kauai | Prehistoric |

## Insects (class Insecta)
### Dragonflies and damselflies (order Odonata)
#### Narrow-winged damselflies (family Coenagrionidae)
##### Possibly extinct

| Common name | Scientific name | Range | Comments |
| Maui upland damselfly | Megalagrion jugorum | Maui and Lanai | Last seen in 1917. Considered possibly extinct. |

### Grasshoppers, locusts, and crickets (order Orthoptera)
#### True crickets (family Gryllidae)
##### Extinct in the wild

| Common name | Scientific name | Range | Comments |
| Oʻahu deceptor bush cricket | Leptogryllus deceptor | Oahu | Extinct in the wild |

### True bugs (order Hemiptera)
#### Mealybugs (family Pseudococcidae)

| Scientific name | Range | Comments |
| Clavicoccus erinaceus | Oahu | Extinct |
| Phyllococcus oahuensis | Unspecified range within the Hawaiian Islands | Extinct |

### Beetles (order Coleoptera)
#### True weevils (family Curculionidae)

| Common name | Scientific name | Range | Comments |
| | Dryophthorus distinguendus | Nearly all of the Hawaiian Islands | Extinct. Last seen in 1961. |
| Laysan weevil | Oodemas laysanensis | Laysan | Extinct. Last seen in 1964. |
| | Rhyncogonus bryani | Laysan | Extinct. Last seen in 1911. |

### Butterflies and moths (order Lepidoptera)
#### Pyralid moths (family Pyralidae)

| Scientific name | Range | Comments |
| Genophantis leahi | Maui, Oahu, Molokai and Hawaii (island) | Last seen in the early 1900s. Considered extinct. |

#### Owlet moths (family Noctuidae)

| Common name | Scientific name | Range | Comments |
| Confused moth | Helicoverpa confusa | Unspecified range within the Hawaiian Islands | Extinct after 1927. |
| Minute noctuid moth | Helicoverpa minuta | Unspecified range within the Hawaiian Islands | Last seen before 1911. Considered extinct. |
| Laysan dropseed noctuid moth | Hypena laysanensis | Laysan | Last seen in 1911. Considered extinct. |
| Hilo noctuid moth | Hypena newelli | Hawaii (island) | Date of last observation unknown, possibly before 1923. Extinct |
| Lovegrass noctuid moth | Hypena plagiota | Kauai, Oahu, and Maui | Last seen before 1960, date unknown. Extinct |
| Kaholuamano noctuid moth | Hypena senicula | Kauai | Date of last collection unknown, possibly before 1923. Extinct |

##### Possibly extinct, owlet moths (family Noctuidae)

| Common name | Scientific name | Range | Comments |
| Midway noctuid moth | Agrotis fasciata | Midway Atoll | Last seen before 1960, date unknown. Considered possibly extinct. |
| Kona agrotis noctuid moth | Agrotis panoplias | Hawaii (island) | Date unknown. Considered possibly extinct. |
| Poko noctuid moth | Agrotis crinigera | Kauai, Oahu, Molokai, Lanai, Maui, Hawaii (island), and Laysan | Last seen in 1926. Considered possibly extinct. |
| Kerr's noctuid moth | Agrotis kerri | French Frigate Shoals | Last seen in 1923. Considered possibly extinct. |
| Procellaris grotis noctuid moth | Agrotis procellaris | Laysan | Last seen in 1912. Considered possibly extinct. |
| Maui agrotis noctuid moth | Agrotis cremata | Oahu and Maui | Last seen in 1912. Considered possibly extinct. |
| Laysan noctuid moth | Agrotis laysanensis | Laysan | Last seen in 1911. Considered possibly extinct. |
| Microreas agrotis noctuid moth | Agrotis microreas | Hawaii (island) | Last seen in 1925. Considered possibly extinct. |
| Light-loving noctuid moth | Agrotis photophila | Oahu | Last seen in 1900. Considered possibly extinct. |

##### Data deficient, owlet moths (family Noctuidae)

| Common name | Scientific name | Range | Comments |
| Kauai agrotis noctuid moth | Agrotis tephrias | Kauai, Maui, and possibly Hawaii (island) | Last seen in 1985. Considered data deficient. |

#### Geometer moths (family Geometridae)

| Common name | Scientific name | Range | Comments |
| Kona giant looper moth | Scotorythra megalophylla | Unspecified range within the Hawaiian Islands | Last seen in the early 1900s. Considered extinct. |
| Koʻolau giant looper moth | Scotorythra nesiotes | Oahu | Last seen in the early 1900s. Considered extinct. |
| ʻOlaʻa peppered looper moth | Tritocleis microphylla | Unspecified range within the Hawaiian Islands | Last seen in the 1890s. Considered extinct. |

### True flies (order Diptera)
#### Long-legged flies (family Dolichopodidae)

| Common name | Scientific name | Range | Comments | Pictures |
| Koʻolau spurwing long-legged fly | Campsicnemus mirabilis | Unspecified range within the Hawaiian Islands | Extinct | |

#### Fruit flies and relatives (family Drosophilidae)

| Common name | Scientific name | Range | Comments |
| Lanai pomace fly | Drosophila lanaiensis | Lanai and possibly Oahu | Last seen in 1893. Extinct |

## Snails and slugs (class Gastropoda)
### Order Stylommatophora
#### Family Achatinellidae

| Scientific name | Range | Comments |
| Achatinella abbreviata | Oahu | Extinct. Last seen in 1963 |
| Achatinella apexfulva | Oahu | Extinct. Last individual died in captivity in 2019. |
| Achatinella buddii | Oahu | Extinct. Last seen in the early 1900s. |
| Achatinella caesia | Oahu | Extinct. Last seen in the early 1900s. |
| Achatinella casta | Oahu | Extinct. Unspecified date. |
| Achatinella decora | Oahu | Extinct. Last seen in the early 1900s. |
| Achatinella dimorpha | Oahu | Extinct. Recorded in 1951 and 1967. |
| Achatinella elegans | Oahu | Extinct. Last seen in 1952. |
| Achatinella juddii | Oahu | Extinct. Last seen in 1958. |
| Achatinella juncea | Oahu | Extinct. One post-1945 record, no recent records. |
| Achatinella lehuiensis | Oahu | Extinct. Last seen in 1922. |
| Achatinella livida | Oahu | Extinct. Collected six times between 1981 and 1993. |
| Achatinella papyracea | Oahu | Extinct. Last seen in 1945. |
| Achatinella spaldingi | Oahu | Extinct. Last seen in 1938. |
| Achatinella thaanumi | Oahu | Extinct. Last seen in the early 1900s. |
| Achatinella valida | Oahu | Extinct. Last seen in 1951. |
| Auriculella expansa | Maui | Extinct. Observed in 1946 and 1960. |
| Auriculella uniplicata | Maui | Extinct. Observed in 1946. |
| Newcombia philippiana | Unspecified range within the Hawaiian Islands. | Extinct. Collected in 1964. |
| Partulina crassa | Lanai | Extinct. Last seen in 1914. |
| Partulina montagui | Unspecified range within the Hawaiian Islands. | Extinct. Last seen in 1913. |
| Perdicella fulgurans | Maui | Extinct. No post-1945 historic sightings. |
| Perdicella maniensis | Maui | Extinct. No post-1945 historic sightings. |
| Perdicella zebra | Maui | Extinct. No post-1945 historic sightings. |
| Perdicella zebrina | Maui | Extinct. No post-1945 historic sightings. |

#### Family Amastridae

| Scientific name | Range | Comments |
| Amastra albolabris | Oahu | Extinct. Unspecified date. |
| Amastra cornea | Oahu | Extinct. Unspecified date. |
| Amastra crassilabrum | Oahu | Extinct. Observed in 1951. |
| Amastra elongata | Oahu | Extinct. Unspecified date. |
| Amastra forbesi | Unspecified range within the Hawaiian Islands. | Extinct. Unspecified date. |
| Amastra pellucida | Oahu | Extinct. Unspecified date. |
| Amastra porcus | Unspecified range within the Hawaiian Islands. | Extinct. Unspecified date. |
| Amastra reticulata | Oahu | Extinct. Unspecified date. |
| Amastra subrostrata | Oahu | Extinct. Unspecified date. |
| Amastra subsoror | Maui | Extinct. Last observed in 1946. |
| Amastra tenuispira | Maui | Extinct. Unspecified date. |
| Amastra umbilicata | Unspecified range within the Hawaiian Islands. | Extinct. Unspecified date. |
| Carelia anceophila | Kauai | Extinct. Last seen in 1930. |
| Carelia bicolor | Kauai | Extinct. Last seen in 1970. |
| Carelia cochlea | Kauai | Extinct. Observed in 1952. |
| Carelia cumingiana | Unspecified range within the Hawaiian Islands. | Extinct. Last seen in 1930. |
| Carelia dolei | Kauai | Extinct. Observed in 1952. |
| Carelia evelynae | Kauai | Extinct. Observed in 1952. |
| Carelia glossema | Kauai | Extinct. Last seen in 1930. |
| Carelia hyattiana | Kauai | Extinct. Unspecified date. |
| Carelia kalalauensis | Kauai | Extinct. Last seen 1945-1947. |
| Carelia knudseni | Kauai | Extinct. Last seen in 1930. |
| Carelia lirata | Kauai | Extinct. No post-1945 historic sightings. |
| Carelia lymani | Kauai | Extinct. Unspecified date. |
| Carelia mirabilis | Kauai | Extinct. No post-1945 historic sightings. |
| Carelia necra | Kauai | Extinct. No post-1945 historic sightings. |
| Carelia olivacea | Kauai | Extinct. Last seen in 1930. |
| Carelia paradoxa | Kauai | Extinct. Last seen in 1930. |
| Carelia periscelis | Kauai | Extinct. Last seen in 1930. |
| Carelia pilsbryi | Kauai | Extinct. No post-1945 historic sightings. |
| Carelia sinclairi | Unspecified range within the Hawaiian Islands. | Extinct. Unspecified date. |
| Carelia tenebrosa | Kauai | Extinct. Last seen in 1930. |
| Carelia turricula | Kauai | Extinct. Last seen in 1930. |

#### Family Pupillidae

| Scientific name | Range | Comments |
| Lyropupa perlonga | Oahu | Extinct. Observed in 1980. |