Pterinochilus murinus DCF Zimbabwe

Pterinochilus murinus DCF Zimbabwe—often cheekily called the 'OBT' or Orange Bitey Thing—hails from Zimbabwe and neighbouring southern African countries. Found in savannah regions, these tarantulas thrive where the land is dry, the ground is tough, and daytime shade is a luxury. Their habitat consists of scrubland, sparse bush, and areas with loose rocks for shelter. The climate is typically warm with strong seasonal changes, meaning these spiders are well-accustomed to both high, dry heat and slightly cooler nights. The terrain is perfect for burrowing and copious web building, both of which they do with great enthusiasm.

Expect your OBT to reach an adult leg span of around 12 to 15 cm, with females generally being larger and bulkier than the more gracile males. Males mature quicker and don’t get quite as chunky, while females are the long-term companions of the species, growing steadily into their formidable adult form. Both sexes display vibrant orange hues as adults, but only the females will be around long enough for you to truly appreciate them as adults.

The OBT is largely fossorial, meaning it spends its time either digging burrows or occupying any available nooks and crannies it can web up to its satisfaction. In captivity, they’re master decorators, producing thick sheets of webbing and happily remodelling their enclosures. While not strictly terrestrial, they’re known to claim vertical spaces if given the chance, making them a semi-arboreal wildcard at times. These tarantulas are not shy about making themselves a fortress, and their antics are always entertaining—until it’s rehousing day.

Females of the DCF Zimbabwe form are the true marathon runners—living up to 12 to 15 years in captivity with good care. Males, being the sprinters of the species, typically reach maturity at 2 to 3 years of age and, if they’re lucky, live another year at best. This is normal for many tarantula species, and something to bear in mind if you’re hoping for a long-term eight-legged roommate. For those aiming for longevity, a female is definitely the prize.

OBTs are known for their fast to downright turbo-charged growth, especially if kept warm and well-fed. Spiderlings can move quickly through their moults and reach juvenile size in a year or two. A high-calorie diet and stable temperatures (don’t cook them, though!) will speed things up, but remember that overfeeding can lead to prematurely chunky spiders—not always ideal. Consistency is key: regular feeds and proper humidity will have your OBT racing towards adulthood.

Let’s not mince words: the OBT has a reputation as one of the most defensive and spirited tarantulas in the hobby. Fast, alert, and not afraid to stand up for itself, this species is more likely to bolt or put on a threat display than sit quietly for a photo-op. Most of the time, they’re reclusive, but when disturbed, they’re all legs and attitude. They’re not aggressive for the sake of it, but they don’t appreciate uninvited guests—or tweezers—in their web palace.

Ideal temperatures for P. murinus DCF Zimbabwe range from 22–27°C. They’ll tolerate the occasional dip or climb outside this range, mirroring their hardy nature in the wild, but big temperature swings should be avoided. Supplementary heating isn’t normally necessary if your room stays comfortably warm throughout the year. If you must use heat mats, attach them to the side of the enclosure and monitor with a thermometer to avoid overheating the substrate. Always ensure that any heating solution keeps one end of the enclosure slightly cooler, giving your spider a choice.

These OBTs thrive at a relative humidity of 50–65%. They prefer it on the drier side—think ‘British summer gone wrong’, not ‘tropical greenhouse’. Good ventilation is crucial to prevent mould and stuffiness. Provide a small, shallow water dish, even if they seem to ignore it, as it’ll keep them hydrated, especially during moulting. Light misting on occasion is fine, but avoid soaking the substrate. Their wild ancestors would turn up their fangs at swampy conditions!

While OBTs are known for being reclusive, their bold web constructions often mean you’ll see signs of them even if the spider itself is hidden. They tend to hole up in their webbed lairs, emerging for late-night food runs or the occasional enclosure renovation. If you’re patient, you’ll catch glimpses of their stunning colours, especially after a fresh moult. Not a display tarantula, but definitely one that’ll keep you entertained with the chaos it leaves behind.

If you like your spiders busy, the OBT is a prolific webber, often transforming a plain enclosure into a dense tangle of silk in just a few weeks. They use webbing for security, hunting, and moult mats, often ‘cementing’ their burrow entrances and creating extensive tunnels. Webbing is not only practical but also a telltale sign your spider is happy and healthy. Just don’t be surprised if you lose sight of the decor completely—it’ll all be silk soon.

Slings will eagerly take pre-killed or small live prey, such as pre-killed pinhead crickets or mealworm pieces, every 4–5 days. Juveniles and adults can be fed once a week on crickets, locusts, dubia roaches or the occasional mealworm. Feeding response is often fantastically enthusiastic—stand back or risk flinching at the speed! Always remove uneaten prey after 24 hours, especially during moults, as leftover bugs can stress or harm your tarantula. Overfeeding can make moults tricky, so resist the urge to fatten them too much. Fresh water is always appreciated, even if rarely witnessed being drunk.

A secure, escape-proof enclosure with excellent ventilation is non-negotiable for OBTs. Minimum 30x30x30 cm for adults, with at least 10–15 cm of slightly moist but mostly dry substrate for burrowing. Provide a cork bark hide, large enough for webbing or tunnelling. A water dish is essential. Heavy decor isn’t necessary, as it’ll soon be glued down with silk anyway. Avoid cohabitation—OBTs are solitary and quite fond of their personal space. Ensure all lids fit snugly, as they’re brilliant escape artists when the mood strikes.

P. murinus DCF Zimbabwe isn’t for faint-hearted beginners—it’s considered an intermediate to advanced keeper’s tarantula. Its speed, defensive nature, and potent bite mean it’s better suited to keepers who are confident and have experience with fast or spirited New World species. If you’re after excitement, webbing and a spider with personality, this is a brilliant choice—but only if you know what you’re getting into.

The P. murinus DCF Zimbabwe is a hobby icon for a reason—absolutely stunning colour, industrious webbing, and a hearty personality packed into a turbo-charged package. Its appeal lies in its beauty, hardiness and the sheer entertainment value of its antics (from dramatic threat poses to full-on enclosure remodelling). While not cuddly or beginner-friendly, it’s rewarding for the experienced keeper who admires a spider with both style and sass. If you respect their space and prep for the odd jump-scare, you’ll find this species an unforgettable addition to your collection.