The Amazing Evolution of the Pet Omothymus Spider

The Omothymus spider is typically non-threatening to individuals, although it possesses the capability to administer stings that may cause discomfort.

While tarantulas are commonly kept as pets in domestic settings, it is advisable to house them in enclosures due to their nocturnal hunting behaviour.

Tarantulas can be classified into two distinct categories based on their behaviour: active tarantulas and docile tarantulas.

The species Omothymus schioedtei exhibits a notable degree of assertiveness and displays minimal fear towards human presence.

The organisms in question exhibit high levels of activity and have been observed to consume diminutive organisms such as flies and moths.

Due to their pronounced aggression and territorial behaviour, it is advisable to house Tarantulas in a spacious enclosure alongside conspecifics exhibiting comparatively lower levels of aggression.


How Do I Describe the Omothymus Spider?

Omothymus Spider
Picture of the Omothymus Spider

Omothymus schioedtei is a notable arboreal tarantula species belonging to the subfamily Ornithoctoninae, characterized by its substantial size and vibrant colouration.

The arachnid in question exhibits a considerable size, characterized by a leg span measuring 22 cm and a carapace length exceeding 3 cm.

A clear sexual dimorphism is observed. The male displays an olive green colouration, accompanied by subtle yellow striations on its legs.

The male exhibits a tibial apophysis that is characterized by its blunt morphology, along with the presence of long and slender legs.

The determination of the sex of subadult males can be accomplished through the utilization of the epigynal fusillae method.

Additionally, it is noteworthy that these individuals undergo a progressive increase in green colouration with each successive moult until reaching maturity.

The distinction between subadult males and subadult females is particularly evident through their ventral colouration, with the former exhibiting a green hue and the latter displaying a black hue.


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How Do I Describe the Taxonomy of the Omothymus Spider?

The species Omothymus schioedtei was initially documented by Tamerlan Thorell in 1891, serving as the representative species for his newly established genus, Omothymus.

In the year 1903, Eugène Simon established a synonymy relationship between the taxonomic genera Omothymus and Cyriopagopus, resulting in the reclassification of Omothymus schioedtei as Cyriopagopus schioedtei.

As of March 2017, the taxonomic classification of several genera of spiders in East Asia remained ambiguous.

In 2015, Smith and Jacobi conducted a restoration of the species, reverting it back to its original designation as Omothymus schioedtei.

This decision was based on the argument that the type species of the genus Cyriopagopus, namely C. paganus, lacked distinctiveness from the genus Haplopelma, in contrast to C. schioedtei.

Furthermore, the taxonomic classification of Haplopelma has been synonymized with Cyriopagopus.


How Do I Identify the Omothymus Spider?

The Malaysian Earth Tiger Tarantula exhibits a visually captivating and noteworthy physical appearance.

This species, belonging to the tarantula family, exhibits the characteristic anatomical features of eight legs and two body parts, including a notably enlarged and spherical abdomen.

The legs exhibit a dense arrangement of abbreviated hairs, imparting a velvety tactile quality and conferring a measure of defence against potential predators.

The Malaysian Earth Tiger Tarantula exhibits a dark brown or black body colouration, accompanied by conspicuous bands or stripes in vibrant shades of orange or yellow that extend along its legs and abdomen.

The distinctive markings exhibited by this species have garnered it the moniker of “tiger tarantula.” The bands exhibit variations in thickness and can display slight variations in the arrangement among individuals.

The carapace, also known as the dorsal region of the spider’s cephalothorax, exhibits a discernible arrangement of pale markings that bear a resemblance to the form of a skull, thereby earning it the alternative designation of “skull-faced tarantula.”

The cranial pattern is constituted by a pair of central markings that traverse the anterior region of the carapace, accompanied by smaller markings situated both superiorly and inferiorly to them.


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How Do I Describe the Behaviour of the Omothymus Spider?

The earth tiger tarantula is devoid of dental structures. In contrast, the organism utilizes its lower limbs and anterior appendages to seize and consume its prey.

The earth tiger tarantulas possess a venomous bite that is known to be highly potent. Contrarily, their bite does not possess venomous properties.

The tarantulas in question possess the ability to introduce a venomous substance into their victims through their bites.

The majority of spiders that have experienced a bite exhibit no significant challenges in terms of their survival. Nevertheless, on certain occasions, the act of biting can elicit discomfort.

In the event of a bite from an earth tiger tarantula, it is possible to experience localized swelling. The wound is expected to undergo complete healing within a span of seven days.

It is highly advisable to promptly seek medical consultation from a healthcare professional in the event that one experiences symptoms suggestive of a bite inflicted by an earth tiger tarantula.


How Do I Describe the Habitat of the Omothymus Spider In the Wild?

The Malaysian Earth Tiger tarantulas are typically observed inhabiting the coastal forests located in Sabah, Malaysia, primarily within an elevation range spanning from sea level up to 300 meters.

The native habitat of this species is typically located within the primary lowland and foothill monsoon forests, where they inhabit hollow trees situated at considerable heights.

The depletion of the Malaysian rainforest created new ecological opportunities for the tiger spider.

This adaptation facilitated the hunting process for tigers, thereby enhancing their ability to acquire a wider range of prey. The trees underwent a process of falling, while the plants experienced growth.

However, the tiger spiders remained stationary, inhabiting the forest floor. This particular step has had a beneficial impact on the habitat of the tiger spider.


How Do I Describe the Habitat of the Omothymus Spider As Pets?

For the purpose of accommodating an Omothymus schioedtei tarantula, it is advisable to employ a spacious enclosure made of either plastic or wood, measuring no less than 2 feet in length and 1 foot in width.

The enclosure should be equipped with substrates of a minimum depth of 10 inches, such as plasterboard, wood chips, or gravel.

It has been determined that a spacious aquarium is an optimal enclosure for accommodating earth tigers due to its ability to offer the essential elements of humidity, heat, and airflow.

Ensuring proper care for an earth tiger tarantula is of utmost importance. For instance, it is advisable to avoid excessive humidity levels within the container.

An optimal humidity range is typically considered to be between 30% and 50%. This segment enables the tarantula to regulate its internal temperature.

Simultaneously, it is imperative to ensure that the humidity levels do not fall below an acceptable threshold. It is imperative to maintain the humidity levels within the range of 30% to 50%.

Sufficient environmental moisture is necessary for the earth tiger tarantula to facilitate silk production and undergo the process of moulting. It is imperative to ensure that the container is equipped with ventilation apertures.


How Do I Describe the Temperature Requirement of the Omothymus Spider?

The spider’s behaviour and activities are governed by temperature and humidity. The tarantulas thrive during the winter season when exposed to temperatures in the range of the low 50s Fahrenheit.

It is recommended that humidity levels be maintained within the range of 50-70% Fahrenheit. The tarantula exhibits a preference for inhabiting relatively confined spaces.

However, the dimensions of the box are of significance. The provision of adequate space for movement is essential for their well-being.

In instances where the enclosure is insufficiently spacious, their survival may be compromised as a result of restricted mobility and limited access to nourishment.


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How Do I Describe the Diet of the Omothymus Spider?

Similar to humans, the protein requirements of spiders are contingent upon their dietary intake. The estimated food consumption of the earth tiger tarantula is approximately 1.5% to 2% of its body weight.

The lifespan of Omothymus schioedtei can extend up to a maximum of two years, although this duration may be subject to variation based on prevailing environmental factors.

Their primary source of sustenance consists predominantly of insects and small reptiles.



The Omothymus spider, scientifically referred to as Omothymus spp., is a distinctive and captivating arachnid species belonging to the tarantula family.

It is commonly recognized by various vernacular names such as the Malaysian Earth Tiger or the Asian Tiger Tarantula. This particular species is indigenous to the region of Peninsular Malaysia.

Arachnid enthusiasts exhibit a strong interest in these notable arachnids due to their conspicuous colouration, remarkable dimensions, and captivating behavioural patterns.

This article delves into an examination of the characteristics and natural history of the Malaysian Earth Tiger Tarantula, while also offering insights into the proper care and maintenance of this remarkable species.

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