Size and growth
Adult Tliltocatl vagans reach about 14–16 cm (5.5–6.25 in) and are moderate growers. Adult Tliltocatl verdezi reach about 14–16 cm (5.5–6.25 in) and are moderate growers. That affects how quickly Mexican Red Rumps and Mexican Rose Greys move through sling and juvenile enclosure sizes.
Do not use size alone to estimate age in either Tliltocatl vagans or Tliltocatl verdezi. Sex, feeding and individual variation can change the pace of growth even when two spiders began at a similar size.
Enclosure and lifestyle
Mexican Red Rumps are terrestrial, while Mexican Rose Greys are terrestrial. Build the Tliltocatl vagans enclosure for a terrestrial spider and the Tliltocatl verdezi enclosure for a terrestrial spider instead of assuming two tarantulas need the same shape of setup.
For Tliltocatl vagans, substrate depth, retreat position and usable space should match its terrestrial lifestyle. Apply the same rule separately to Tliltocatl verdezi; the enclosure should make normal behaviour easy rather than forcing either species into a generic layout.
Temperature, water and moisture
A practical temperature range for Tliltocatl vagans is 20–26°C; for Tliltocatl verdezi, it is 20–25°C. Stable room conditions are more useful for both species than chasing small fluctuations within those ranges.
For Tliltocatl vagans, keep a water dish available and maintain a modest moisture gradient; avoid persistently wet substrate. For Tliltocatl verdezi, keep a mostly dry setup with to lightly moisture-retentive with a water dish. In both enclosures, keep fresh water available and adjust substrate moisture to how quickly the setup actually dries.
Temperament and maintenance
Tliltocatl vagans is a New World species, while Tliltocatl verdezi is a New World species. That background is useful when planning maintenance, but individual Mexican Red Rumps and Mexican Rose Greys can still differ noticeably in speed and defensiveness.
With both Tliltocatl vagans and Tliltocatl verdezi, locate the spider before opening the enclosure, use long tools when they make the job safer and keep a catch cup ready for rehousing. Handling is not required for routine care.
Male and female lifespan
Male Tliltocatl vagans generally live roughly 4–6 years, while females can live 15–20 years. Male Tliltocatl verdezi generally live roughly 4–6 years, while females can live 15–20 years.
Those lifespan ranges make sex particularly relevant when comparing Tliltocatl vagans with Tliltocatl verdezi. A confirmed female of either species is normally a much longer commitment than a mature male, and the exact age of an older juvenile may be impossible to know.
UK availability and trade notes
In the UK hobby, Tliltocatl vagans is currently classed as common, while Tliltocatl verdezi is classed as uncommon. Stock changes between specialist sellers, captive-produced batches and show weekends, so availability should be checked at the time of purchase.
For records and purchases, use the scientific names Tliltocatl vagans and Tliltocatl verdezi as the main identifiers. Current trade notes list Tliltocatl vagans as 'CITES Appendix II; UK Annex B' and Tliltocatl verdezi as 'CITES Appendix II; UK Annex B', so check current requirements before any international movement where controls may apply.
Practical difference in day-to-day care
The practical difference between Tliltocatl vagans and Tliltocatl verdezi comes from the combination of lifestyle, adult size, growth and moisture needs. Those factors change how much substrate, vertical space and maintenance access each enclosure needs.
Whichever species you keep, let the individual spider settle into an enclosure designed for its own biology. That applies equally to Tliltocatl vagans and Tliltocatl verdezi: fresh water, secure housing and patient observation matter more than trying to make the two species behave the same way.