Mexican Blood Leg (Aphonopelma bicoloratum)

From Pet Wiki
Jump to navigation Jump to search
Mexican Blood Leg
Aphonopelma bicoloratum
Mexican Blood Leg (Aphonopelma bicoloratum)
Name Mexican Blood Leg
Name Lat. Aphonopelma bicoloratum
Family Tarantulas
Family lat. Theraphosidae
Order Spiders
Order lat. Araneae
Origin Mexico
Habitat Shrub and grassland
Diet Live insects
Humidity 50-70 %
Behavior Groundliving, nocturnal, peaceful
Keeping Individual
Care Level Moderate
Housing Semi humid terrarium
Breeding Moderately difficult
Life Span 10-15 years
Protection No
Metric Units
Size 6 cm
Temperature Day 23-27 °C
Temperature Night 20-23 °C
Housing Size 30 x 30 x 40 cm
US Units
Size 2.4"
Temperature Day 73-81 °F
Temperature Night 68-73 °F
Housing Size 10" x 10" x 15"

Distribution and habitat

The range of the nocturnal, ground-dwelling Aphonopelma bicoloratum is mainly in Mexico, where they live in dry scrubland and grassy steppes, primarily in self-dug burrows.


For 1 animal a terrarium with a minimum size of e.g. 30 x 30 x 40 cm can be recommended. The terrarium should be placed in a quiet place without sunlight.

You need a terrarium structured with cork tubes, roots and stones (hiding places, privacy screen), a 10-15 cm deep, diggable substrate of sand-loam-peat mixture or terrarium humus, a small, shallow drinking vessel and for decoration artificial or potted plants (e.g. Ficus pumila, Scindapsus aureus). The bulk of the substrate should always be kept slightly moist. Several times a week, preferably in the evening, the inside of the terrarium should be finely sprayed with water (humidity).

Temp. day: 23-27 °C Temp. night: 20-23 °C Humidity: 50-70

The lighting duration should be 8-12 hrs. depending on the season. Special lamps with high UV content are not necessary.


The food supply should consist of crickets, cockroaches, house crickets, maggots and grasshoppers as well as other arachnids. The prey animal is "injected" with the biting tools (chelicerae) with a digestive juice, which liquefies the protein components and the prey can thus be sucked out (extracorporeal digestion). Young animals can be offered food 1-2 times a week, adults only every 1-2 weeks. They should not be overfed under any circumstances, the basic rule being that the abdomen should be no more than 1½ times the size of the cephalothorax. Unaccepted food must be removed after 1-2 days. Refusal of food may indicate a natural phase of starvation or an impending molt. No food animals should be in the terrarium during molting, they could injure the spider.

A regular and varied diet promotes health and prevents deficiency symptoms.

Reproduction and breeding

The somewhat smaller males can be recognized by their bulbs folded in towards the body. The female lays several 100 eggs in a prepared cocoon a few weeks after mating. After 10-12 weeks the 2-3 mm large young hatch and leave the nest soon after. Suitable food for rearing is Drosophila, freshly hatched crickets and springtails

The life expectancy of females can be 15 years

Obligation to report

Make sure to inform yourself about any regulations on keeping or bans on keeping this animal in your state or home municipality (e.g. public order office). Your pet store will be happy to provide you with further information.


They are relatively peaceful and calm. In defense, they hurl irritant hairs with their hind legs against the attacker (bombard). These cause skin irritation and may cause corneal damage in the eyes as well as asthma-like symptoms. Care should also be taken when cleaning the terrarium, as irritant hairs can be stirred up from the substrate (safety goggles). A bite is very painful, the venom is equivalent to that of a bee or wasp. Crushed or held legs can be thrown off at a predetermined breaking point and regenerate completely after 1-2 molts. They change color slightly with each molt

Good ventilation without drafts and equipment for measuring temperature and humidity are necessary. The lighting must correspond to the day-night rhythm appropriate for the species and must be placed in such a way that the animals cannot injure themselves. The terrarium should be locked in such a way that neither unauthorized persons can open it nor the animals can escape. Special attention must be paid to thorough hygiene and impurities must be removed regularly.

Further literature can be found in your pet store.


Text: petdata; Image: Franz Lowak

Source: ENGELMANN & LANGE (2011): Zootierhaltung - Tiere in menschlicher Obhut: Wirbellose, Harri Deutsch Verlag: KLAAS (2007): Vogelspinnen- Herkunft, Pflege, Arten, Verlag Eugen Ulmer