Aphonopelma chalcodes – Arizona blonde tarantula

Aphonopelma chalcodes is a large tarantula that is commonly known as the western desert tarantula, Arizona blond tarantula, or Mexican blond tarantula. They are found in the Southwestern states as well as in Mexico.

Despite their size, they are rarely encountered in the wild. In addition to the fact that they are very shy and usually hide away when they feel a human approaching, they also spend daytime usually well hidden under rocks.

During mating season between June to September, adult males leave their burrows in search for a female mate. During this time, most sightings of tarantulas occur in the United States.

Quick Overview: Aphonopelma chalcodes – Arizona blonde tarantula
Medically significant: No
Body size: 3 to 5 in (8 to 13 cm)
Main colors: Brown, Black, Tan
Range: Southwestern States, Mexico
Web: No web

Arizona Blonde Tarantula Spider Description

These spiders are typically large and hairy, as all other tarantulas in the United States. They have thick stocky legs covered with fine blonde hairs with the part of the leg closest to the body in a darker brown color.

Females usually have a solid tan color while males have black legs, a copper-colored carapace, and a reddish abdomen.

Range of Aphonopelma chalcodes - Arizona blonde tarantula in United States
Aphonopelma chalcodes – Arizona blonde tarantula. Photo by: James Stevens

Tarantulas are among the longest living spiders in the world. While many species, like orbweavers only live for several months, tarantulas take years to reach adulthood. A typical male can live between 6-8 years while females can live for over 25 years.

Size

These tarantulas could grow around 3 to 5 in (8 to 13 cm).

Aphonopelma chalcodes - Arizona blonde tarantula in United States
Because of its gracious appearance, the Desert blond tarantula is a popular spider in the pet trade.

Web

They do not spin webs, but the entrance to their burrows is covered with multiple silk threads that act as entrapment for potential prey.

Arizona Blonde Tarantula Bite

Tarantulas are very timid spiders and are hesitant to bite humans. In rare occasions, when handled or cornered and they feel threatened, they may bite. A bite can be somewhat painful due to the size of the fangs, but their venom is not medically significant. A bite can lead to symptoms similar to a bee sting after an initially stronger pain.

Studies have indicated that the venom of A. chalcodes is one of the least potent in the tarantula genus.

Aphonopelma chalcodes Scientific Classification

  • Kingdom: Animalia
  • Phylum: Arthropoda
  • Subphylum: Chelicerata
  • Class: Arachnida
  • Order: Araneae
  • Infraorder: Mygalomorphae
  • Family: Theraphosidae
  • Genus: Aphonopelma
  • Species: Aphonopelma chalcodes

Other common names

These spiders are commonly known as a western desert tarantula, Arizona blond tarantula, or Mexican blond tarantula.

Distribution of the Arizona blond tarantula in the USA

The Arizona blond tarantula is found in the Southwestern United States. The largest populations are found in Southern Arizona (as its common name suggests). Less frequent sightings occur in Southeastern California, the extreme south of Nevada, Southern New Mexico and Western Texas.

Aphonopelma chalcodes – Arizona blonde tarantula

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