Cupiennius salei

Ctenus salei KeyserlingAncylometes ahrensi LucasCtenus mordicus F.O.P.-Cambridge Ctenus oculatus SimonCupiennius ahrensi SchmidtPhoneutria oculifera Karsch Cupiennius salei, from the genus Cupiennius also commonly called the Tiger bromeliad spider, which are large bodied, actively-hunting spiders that are part of the family Trechaleidae.

In the mid-1950s it was realised that the spider is an ideal model for biological research because of their large size, predictable behaviour, and ease of breeding in laboratories.

From an initial 1963 publication on its biological characteristics, their venom has also become one of the most studied among spiders, which now known to include complex Neurotoxins, such as cupiennins and CSTX.

[1][2] As with most spiders which also use venom to subdue prey, the bite of Cupiennius salei is not medically significant for humans, therefore they are not be considered dangerous.

The dorsal side of the body is chocolate-brown with small, lighter spots on the abdomen and many darker longitudinal stripes, particularly on the carapace.

More precisely, this species naturally occurs in Southeastern Mexico, Guatemala, Belize, Honduras, Nicaragua and possibly into northwestern Costa Rica.

However, they can also coexist close to human habitats in disturbed areas, where introduced plants such as bananas can provide ideal refuges.

In general Cupiennius salei are largely arboreal, living in trees and bushes, often favoring plants with broad flat leaves and wide joints that provide shelter.

Although they tend to generally be inactive for long periods of time, often resting on the surfaces of broad leaves, they are capable of running fast when provoked, either to catch prey or to escape from threats.

[11] Being adapted to nocturnality, their visual capability is reduced and they rely on their tactile sensation to detect movements or vibrations in their environment.

[6] As Cupiennius salei does not produce any dedicated prey capture web, their bite effect plays an important part of their hunting strategy alongside grasping with the chelicerae, forelegs and pedipalps.

They prey on a wide range of invertebrates especially insects (moths, earwigs, cockroaches, flies, grasshoppers, etc), and small vertebrates such as frogs and lizards.

C. salei adult female from Parque Nacional Cusuco , Dept. Cortés, Honduras