Tarantula
Guides
Aphonopelma
Aphonopelma is a genus of tarantulas in the family Theraphosidae, comprising the majority of North American tarantula species north of Mexico and many Central American species. The genus includes approximately 54 currently recognized species, though taxonomy remains problematic due to morphological similarity among species. Members are generally large-bodied with leg spans of 6 inches or more, and possess urticating hairs used in defense. The genus exhibits sexual dimorphism, with mature males becoming more active and wander in search of sedentary females.
Aphonopelma anax
Texas tan tarantula
Aphonopelma anax, the Texas tan tarantula, is among the largest tarantula species in the United States, with mature individuals reaching leg spans of 5–6 inches. The species exhibits pronounced sexual dimorphism: females are larger-bodied with shorter legs and can live up to 40 years, while males have longer legs, smaller bodies, and typically survive less than two years after maturity. Males abandon their burrows during the late summer and early fall mating season to actively search for sedentary females, traveling up to 1.2 km in a single night and covering areas up to 29 hectares. The species employs behavioral thermoregulation, retreating into temporary burrows during daytime heat and emerging in the evening when thermal conditions permit sustained activity.
Aphonopelma armada
Texas Black Spot Tarantula
Aphonopelma armada is a species of tarantula in the family Theraphosidae, endemic to Texas in the United States. It is commonly known as the Texas Black Spot Tarantula. Like other members of the genus Aphonopelma, it is a large-bodied, ground-dwelling spider that constructs burrows. The species was originally described as Dugesiella armada by Chamberlin in 1940 before being transferred to Aphonopelma.
Aphonopelma catalina
Santa Catalina Mountain Tarantula
Aphonopelma catalina is a tarantula species described in 2016 from the Santa Catalina Mountains of southeastern Arizona. It belongs to a genus of large-bodied, ground-dwelling spiders native to the southwestern United States and Mexico. Like other Aphonopelma species, it exhibits characteristics typical of primitive mygalomorph spiders, including simple genitalia that complicate species identification. The species is endemic to a single mountain range, making it vulnerable to habitat loss.
Aphonopelma chalcodes
Desert Blonde Tarantula, Arizona Blonde Tarantula, Western Desert Tarantula, Mexican Blonde Tarantula
Aphonopelma chalcodes is a large-bodied burrowing tarantula native to the Sonoran and Chihuahuan deserts of the southwestern United States and adjacent Mexico. The species exhibits pronounced sexual dimorphism: females are uniformly tan with a pale, densely hairy carapace that gives the "blonde" common name, while males have black legs, copper-colored cephalothorax, and reddish abdomen. Females are sedentary, occupying deep burrows for their entire lives, whereas mature males abandon their burrows to wander in search of mates during summer monsoon season. The species is notable for its longevity, with females living 24–30 years and males 5–10 years, and for its popularity in the pet trade due to docile temperament and relatively low venom toxicity.
Aphonopelma gabeli
Chiricahuan Gray Tarantula
Aphonopelma gabeli is a medium-sized tarantula species in the family Theraphosidae, native to the Chihuahuan Desert region of the southwestern United States. It is commonly known as the Chiricahuan Gray Tarantula due to its occurrence in the Chiricahua Mountains area of southeastern Arizona and adjacent regions. The species was described by Andrew M. Smith in 1995 and is considered less commonly encountered than the sympatric Texas brown tarantula (Aphonopelma hentzi).
Aphonopelma hentzi
Texas Brown Tarantula, Oklahoma Brown Tarantula, Missouri Tarantula
Aphonopelma hentzi is one of the most common tarantula species in the southern United States, with a broad distribution across the south-central region. Adults typically exceed a four-inch leg span and weigh more than 3 ounces. The body is uniformly dark brown, with coloration becoming more distinct following molting. This species is notable for its male wandering behavior during late summer and fall, when mature males travel substantial distances searching for females. The species serves as host to parasitoid spider wasps, including Pepsis mildei.
Aphonopelma icenoglei
Aphonopelma icenoglei is a species of tarantula in the family Theraphosidae, described in 2016 from California. It is one of 14 new Aphonopelma species identified during a comprehensive taxonomic revision that reduced the previously recognized 55 U.S. species to 29 well-defined species. The species is named in honor of William Icenogle, who contributed specimens and locality data to the study. Like other members of the genus, it is a ground-dwelling burrower native to the southwestern United States.
Aphonopelma johnnycashi
Johnny Cash Tarantula
Aphonopelma johnnycashi is a North American tarantula species described in 2016 from specimens collected near Folsom State Prison in California. The species was named in honor of Johnny Cash, the country music singer known as "The Man in Black," referencing both the location and the mature male's solid black coloration. It is one of 14 new species described in a comprehensive taxonomic revision of the genus Aphonopelma, which nearly doubled the number of recognized species in the southwestern United States.
Aphonopelma joshua
Aphonopelma joshua is a species of tarantula in the family Theraphosidae, described by Prentice in 1997. It is native to California, United States. Like other members of the genus Aphonopelma, this species is a large-bodied, ground-dwelling spider that constructs burrows. The genus has undergone significant taxonomic revision, with a 2016 study reducing the number of recognized U.S. species from 55 to 29 based on integrative morphological, molecular, and ecological data.
Aphonopelma madera
Madera Canyon Tarantula
Aphonopelma madera is a species of tarantula in the family Theraphosidae, described in 2016 from specimens collected in the Santa Rita Mountains of southeastern Arizona. The species is named for Madera Canyon, a well-known locality in its range. Like other members of the genus Aphonopelma, it is a large, ground-dwelling spider with urticating defensive hairs. The species is part of a taxonomic revision that split the formerly broadly-defined Aphonopelma chalcodes complex into multiple distinct species based on morphological and molecular data.
Aphonopelma marxi
Grand Canyon Black Tarantula
Aphonopelma marxi is a North American tarantula species in the family Theraphosidae, commonly known as the Grand Canyon Black Tarantula. It is a medium-sized, dark-colored species belonging to the 'Marxi species group' of mainly black, high-elevation tarantulas. The species was first described in 1891 and has undergone taxonomic revision, with two former species (A. behlei and A. vogelae) now recognized as synonyms. It is widely distributed but difficult to observe due to its fossorial habits.
Aphonopelma moderatum
Rio Grande Gold Tarantula
Aphonopelma moderatum, commonly known as the Rio Grande Gold Tarantula, is a species of tarantula endemic to the Rio Grande Valley of Texas. It is a medium-sized member of the genus Aphonopelma, with females exhibiting distinctive orange and black coloration and exceptional longevity. The species is known for its docile temperament in captivity and has been observed in burrowing behavior as spiderlings, though adults often occupy hides rather than constructing deep burrows.
Aphonopelma paloma
Paloma dwarf, Paloma Dwarf Tarantula
Aphonopelma paloma, commonly known as the Paloma dwarf, is the smallest known species of tarantula, with a leg span of approximately 5 cm. This diminutive theraphosid is native to southern Arizona and is notable for its extremely small burrow entrances, measuring only 5–10 mm in width. The species was described by Prentice in 1993 and is considered difficult to detect in the field due to its small size and cryptic habits.
Aphonopelma steindachneri
Steindachner's Ebony Tarantula
Aphonopelma steindachneri, commonly known as Steindachner's Ebony Tarantula, is a New World terrestrial tarantula native to arid regions of California and Baja California, Mexico. The species reaches 12–13 cm in diagonal leg span and exhibits dark velvet black to deep brown coloration. It constructs and occupies burrows in open ground, emerging primarily at night to forage. Males become most visible during summer and fall breeding seasons when they leave burrows to search for mates. The species faces predation from spider wasps, centipedes, scorpions, and solifugids.
Aphonopelma vorhiesi
Tucson Bronze Tarantula, Madrean Red Rump
Aphonopelma vorhiesi is a tarantula species in the family Theraphosidae, commonly known as the Tucson Bronze or Madrean Red Rump. It occurs in Arizona and New Mexico. The species resembles Aphonopelma chalcodes but is considerably rarer in captivity. Like other Aphonopelma species, it is a ground-dwelling spider that constructs and occupies burrows.
Dendroctonus mexicanus
Mexican bark beetle
Dendroctonus mexicanus is a bark beetle native to Mexico and Central America, recognized as the most widely distributed and destructive bark beetle in Mexico. It colonizes more than 21 pine species and causes significant tree mortality in coniferous forests. The species' population dynamics are strongly influenced by climate variables, particularly temperature and precipitation, with outbreak risk increasing under warmer, drier conditions. It is considered a major forest pest affecting wood supply and ecosystem services.
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tarantulas, bird spiders, birdeaters
Theraphosidae is a family of large, often hairy spiders commonly known as tarantulas. The family comprises approximately 900 described species distributed across tropical, subtropical, and arid regions worldwide. Tarantulas are characterized by their substantial size, with some species reaching leg spans up to 30 cm, and their longevity—females of certain species can live 20 to 30 years. They are primarily nocturnal predators that employ diverse hunting strategies including ambush from burrows, active pursuit, and arboreal hunting. The family exhibits considerable ecological diversity, with species occupying terrestrial burrowing, arboreal, and even cave-dwelling niches.
Tliltocatl
Red Rump Tarantula (for T. vagans)
Tliltocatl is a genus of large burrowing tarantulas in the family Theraphosidae, erected in 2020 when molecular phylogenetic studies demonstrated that the genus Brachypelma comprised two distinct clades. Species are found predominantly in Mexico and Central America. The genus name derives from Nahuatl words meaning 'black spider.' Unlike Brachypelma species, Tliltocatl lacks striking red leg markings, instead displaying more subdued coloration with long red or yellowish abdominal hairs. Several species are threatened by habitat destruction and collection for the pet trade, leading to CITES protection.
Tliltocatl vagans
Mexican red-rump tarantula, Mexican red rump
Tliltocatl vagans is a large terrestrial tarantula native to Mexico and Central America, distinguished by the distinctive red hairs covering its abdomen. Formerly placed in the genus Brachypelma, this species was reclassified to Tliltocatl following taxonomic revision accepted by the World Spider Catalog. It is a burrowing, nocturnal predator that constructs underground galleries. The species has established a non-native population in Florida since 1996, introduced through the pet trade. Females are notably long-lived, potentially reaching 25–40 years in captivity. Due to habitat destruction, collection pressure, and high juvenile mortality, T. vagans is considered vulnerable to extinction and is protected under CITES Appendix II.