Smith's tropical night lizard is an omnivore, with a diet consisting of mostly fig tree fruit and vegetation, and insects.

These lizards confine their movement to remain within the shelter of their caves, and do not emerge in during the day or night.

[3] All adult L.smithii are approximately 25 grams, but males have a slightly larger body size, wider heads and tails, and longer snouts, when compared to their female counterparts.

The female tropical night lizards are able to simultaneously reproduce parthenogenetically and sexually within the same clutch.

Female Lepidophyma smithii carry out regular facultative parthenogenesis, even when in excess supply of sperm.