The Xerces blue is an extinct species of butterfly in the gossamer-winged butterfly family, Lycaenidae. The species lived in coastal sand dunes of the Sunset District of San Francisco Peninsula. The Xerces blue is believed to be the first American butterfly species to become extinct as a result of loss of habitat caused by urban development. The last Xerces blue was seen in 1941 or 1943 on land that is part of Golden Gate National Recreation Area.
Nicrophorus americanus, also known as the American burying beetle or giant carrion beetle, is a critically endangered species of beetle endemic to North America. It belongs to the order Coleoptera and the family Silphidae. The carrion beetle in North America is carnivorous, feeds on carrion and requires carrion to breed. It is also a member of one of the few genera of beetle to exhibit parental care. The decline of the American burying beetle has been attributed to habitat loss, alteration, and degradation, and they now occur in less than 10% of their historic range.
The deepwater cisco was one of the largest ciscoes in the Great Lakes. Its average length was 30 cm and it was about 1.0 kilogram in weight. Occurring only in Lakes Huron and Michigan, and inhabiting waters between 50 and 150 metres deep, it was difficult to distinguish from other ciscoes and was possibly the same species as the shortjaw cisco. The deepwater cisco was distinguished by usually having fewer than 33 gill rakers, relatively long pectoral fins, and unpigmented jaws. It was a silvery colour with a pink or purple lustre and a green or blue back. It spawned in August and September, earlier than most other ciscoes. Not much is known about its specific behaviors. Its diet consisted of Mysis relicta, fingernail clams, and various aquatic insects. Because of its large size, the deepwater cisco was heavily fished commercially.
Megachile pluto, also known as Wallace's giant bee or raja ofu, is a large Indonesian resin bee. With a wingspan of 63.5 mm (2.5 in) it is the largest known living bee species. It was believed to be extinct until several specimens were discovered in 1981. No further sightings were confirmed until two specimens were collected and sold on eBay in 2018. A live female was found and filmed for the first time in 2019.
The titan beetle is a Neotropical longhorn beetle, the sole species in the genus Titanus, and one of the largest known beetles.
Elaphrus viridis, the Delta green ground beetle, is a species of ground beetle restricted to a small region within Solano County, California. Its color is a metallic-green, usually with bronze spots on its elytra, though some lack these spots. The lack or reduction of circular pits on the elytra helps distinguish it from other ground beetles. Typical adults are about a quarter-inch (0.6 cm) in length.
Anomaloglossus parkerae is a species of frog in the family Aromobatidae. As currently known, it is endemic to Venezuela and is only know from near its type locality in the La Escalera, the Bolívar state, Venezuela, near the Guyanese border. However, its range is expected to extend southward to the Gran Sabana as well as into the adjacent Guyana. The specific name parkerae honors Dr. Nancy Parker, undergraduate adviser of one of the scientists who described the species.
Macrodontia is an American genus of long-horned beetles remarkable for their large size and for the large mandibles of the males in particular.
Genophantis leahi was a species of moth in the family Pyralidae described by Otto Herman Swezey in 1910. It was endemic to the Hawaiian islands of Maui, Oahu, Molokai and Hawaii.
Cerambyx cerdo, commonly known as the great capricorn beetle or cerambyx longicorn, is a species of beetle in family Cerambycidae. It occurs in North Africa, Europe, and Asia.
Coelus globosus is a species of beetle in family Tenebrionidae. It is found in Mexico and the United States.
The Globose Dune Beetle inhabits foredunes and sand hummocks immediately bordering the coast from Bodega Bay Head to Ensenada, Baja California, and all of the Channel Islands except San Clemente Island.
Colophon primosi is one of 17 described species of beetle in family Lucanidae, closely related to the scarab family, endemic to South Africa.
Dryotribus mimeticus is a species of beetle in the family Curculionidae. It is endemic to the United States, with the species also being recorded on Scorpion Reef a remote island chain in Mexico. The species also occurred in Florida, it has been suggested in Biologia Centrali-Americana that it was actually introduced to Hawaii from the Florida population. The species was said to have occurred in drift logs on Laysan Island, French Frigate Shoals, Johnston Island and Wake Island. Despite being considered extinct since 1986, 2 specimen of D. mimeticus were found and collected in the Dominican Republic in 1997; 11 years after the species was said to be extinct. In 2002 another specimen of the species was collected in Montserrat.
Hygrotus artus was a species of beetle in family Dytiscidae. It was endemic to the United States. It was only known from the Mono Lake, California, area. Its common name was the Mono Lake Hygrotus Diving Beetle.
Megadytes ducalis is a species of water beetle in the family Dytiscidae. With a length of 4.75 cm (1.9 in), it is the largest species in the family. Until recently, the species was only known from a single specimen that was collected in the 1800s from an unknown locality in Brazil, although rumors indicate it was found in the bottom of a canoe in the Amazon. In 2019, a study reported 10 additional specimens, all collected from the end of the 19th century, discovered incidentally in various historical collections. While the original holotype lacked any location data, the new specimens all indicate that they were collected in Santo Antonio da Barra in the southern part of Bahia, Brazil. Villagers in the region were involved in insect trade, capturing the much sought after specimens of Hypocephalus armatus found around the region. As a consequence of the lack of recent records, the IUCN lists it as extinct. Considering the absence of information about the species and the limited studies conducted on water beetles in Brazil, it might still survive.
Pseudocotalpa giulianii, also known as Giuliani's dune scarab and Giuliani's dune scarab beetle, is a species of sand dune-inhabiting beetle in the family Scarabaeidae. It is endemic to Nevada, the United States. It is named for Derham Giuliani who first collected this species from the Amargosa Desert.
Meridiorhantus orbignyi is an extinct species of predaceous diving beetle in the family Dytiscidae. This species was formerly a member of the genus Rhantus.
Stenelmis gammoni is a species of beetles in the riffle beetle family, Elmidae. It is known by the common name Gammon's riffle beetle.
Xylotoles costatus, the Pitt Island longhorn beetle, is a species of beetle in the family Cerambycidae. It is endemic to the Chatham Islands. Once thought to be extinct, it is now known to survive on South East Island/Rangatira; being therefore an example of a so-called "Lazarus taxon".
