Phormictopus
- Dominik Alexander
- Mar 9
- 2 min read
Updated: Jun 5
The Phormictopus genus are found in the Greater Antilles, including the West Indies, Dominican Republic, Haiti, and Cuba. The various Phormictopus species are relatively large. This genus includes some very bold and brilliant specimens that make great display tarantulas. Currently, there are approximately 12 to 14 species in this genus with a handful of species in synonymy. The taxonomy for this genera is confusing with inconsistent classifications. There are some color variants as well. The most informative article in this genera is by Rudloff 2008 but the article is in German.
Genus and species: Phormictopus sp. green femur
Given name: Matcha
This species is considered a color variant, and at this time, not well classified.
Husbandry Notes:
Enclosure: 12x12x12
Flora: Live naturalistic
Sex: Suspected female
Life stage: Adult
Size: Approximately 6 inches and room to grow
Growth: Molted in May 2025
Disposition: Skittish if disturbed but typically on display
Eating habits: Decent but may not takedown immediately
Misc: Periodically uses its hide. Green hues after molt.



Genus and species: Phormictopus sp. Dominican Purple
Given name: Fig
As with many Phormictopus sp., taxonomy is inconsistent. sp. Dominican Purple is a color variant and some refer to this species as P. cautus (but the accuracy has not been verified). This is a highly temperamental species, who commonly displays threat poses.
The natural habitat of this species is not well described, but likely resides in semitropical regions with rocky and hilly habitat.
Husbandry Notes:
Enclosure: 12x12x12
Flora: Bio naturalistic
Sex: Male
Life stage: Adult
Size: Approximately 7.5 in to 8 in
Growth: Molted 4/22/25 and hooked out as a male
Disposition: Highly defensive and nasty. However, typically out on display.
Eating habits: Decent but may not takedown immediately. Has not been an aggressive eater as of late.
Misc: Beautiful coloration; deep and rich purple after molt. Still beautiful but the bright purple has faded as of late. Modest burrower and sometimes uses its hide.



Genus and species: Phormictopus atrichomatus
Common name: Red Island birdeater
Given name: Cayenne
This species typically grows relatively fast and has a Phormictopus attitude. Many keepers comment about their aggressive attitude. These are terrestrial species and unclear if our specimen will burrow. P. atrichomatus is native to the West Indies, including Cuba and Hispaniola. Origins believed to be Hispaniola (which includes Haiti and the Dominican Republic).
Husbandry Notes:
Enclosure: 9x9x8
Flora: Bio naturalistic
Sex: Uncertain
Life stage: Juvenile
Size: Approximately 3.75 in
Growth: Molted April 13, 2025
Disposition: Relatively calm thus far but can be skittish at times. Starting to get a little more high strung. Commonly on display.
Eating habits: Decent but may not takedown immediately
Misc: Sometimes uses its hide. Has not displayed the nasty disposition that others have commented on.





Genus and species: Phormictopus sp. blue azul
Given name: Indigo
This species is color variation, and is relatively uncommon in the hobby. It remains to be seen whether the taxonomy improves.
Husbandry Notes:
Enclosure: 4x4x4 tarantula cribs
Flora: Naturalistic
Sex: Uncertain
Life stage: Sling
Size: Approximately 2 in
Growth: Growing steady, Molted late May 2025.
Disposition: A bit high strung and skittish at this point.
Eating habits: Decent but may not takedown immediately
Misc: Blue hues are evident.

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