The Neoholothele incei (Classic), commonly known as the Trinidad olive tarantula, is a popular, small, and fast-growing New World species known for its heavy webbing and potential for communal living. The "classic" refers to its natural olive-brown coloration, distinguishing it from the "gold" colour form. 
 
Characteristics
Size: A dwarf species, mature individuals typically have a leg span of 5-7.5 cm (2-3 inches).
Coloration: The "classic" form has an olive-brown coloration and a striped abdomen, in contrast to the gold form which has a metallic gold carapace.
Temperament: Generally considered not defensive, but they are skittish and very fast, often preferring to flee or use their urticating hairs if threatened. Handling is not recommended due to their speed and the risk of injury from a fall.
Venom: Like most New World species, their venom is considered mild, comparable to a bee sting.
Lifespan: Females can live up to 7-10 years, while males typically live for only 1-2.5 years. 
 
Housing and Care
Enclosure: As a terrestrial and fossorial species, they require an enclosure that is longer than it is tall, with ample floor space for webbing and burrowing. A secure lid with good ventilation is essential.
Substrate: Provide a deep substrate (at least 3-6 inches for adults) such as a peat moss and coconut fiber mix, which allows for burrowing and helps maintain humidity.
Habitat: They are prolific webbers and will create intricate web tunnels. Provide anchor points like cork bark, artificial plants, and leaves.
Temperature & Humidity: Ideal temperatures are between 24-28°C (75-82°F), with humidity levels around 70-80%. Misting the webbing occasionally and ensuring the bottom layer of the substrate stays damp helps maintain the necessary humidity.
Feeding: They have a good appetite and will readily eat appropriately sized prey such as crickets, roaches, and locusts. Remove any uneaten food to prevent mould or the live food attacking the tarantula, especially when it is moulting.
Communal Living: Unusually for tarantulas, this species can sometimes be housed communally, with a low incidence of cannibalism if well-fed and housed in a large, structurally rich environment. However, keeping adults communally is generally not recommended as a standard practice due to potential risks, and separating them as they grow is the safest approach.